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    143      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    144      1.1  christos <table summary="layout" width="66%" border="0" cellpadding="0" cellspacing="0"><tr><td><table summary="layout" width="100%" border="0" cellpadding="2" cellspacing="1">
    145      1.1  christos <tr><td class="header">ISC-DHCP-REFERENCES</td><td class="header">D. Hankins</td></tr>
    146      1.1  christos <tr><td class="header">&nbsp;</td><td class="header">T. Mrugalski</td></tr>
    147      1.1  christos <tr><td class="header">&nbsp;</td><td class="header">ISC</td></tr>
    148      1.1  christos <tr><td class="header">&nbsp;</td><td class="header">January 04, 2012</td></tr>
    149      1.1  christos </table></td></tr></table>
    150      1.1  christos <h1><br />ISC DHCP References Collection</h1>
    151      1.1  christos 
    152      1.1  christos <h3>Abstract</h3>
    153      1.1  christos 
    154      1.1  christos <p>This document describes a collection of reference material
    155      1.1  christos 	to which ISC DHCP has been implemented as well as a more
    156      1.1  christos 	complete listing of references for DHCP and DHCPv6 protocols.
    157      1.1  christos </p>
    158      1.1  christos <h3>Copyright Notice</h3>
    159      1.1  christos 
    160  1.1.1.2  christos <p>Copyright (C) 2006-2022 Internet Systems
    161      1.1  christos 	  Consortium, Inc. ("ISC")
    162      1.1  christos </p>
    163      1.1  christos <p> This Source Code Form is subject to the terms of the Mozilla Public
    164      1.1  christos License, v. 2.0. If a copy of the MPL was not distributed with this
    165      1.1  christos file, You can obtain one at http://mozilla.org/MPL/2.0/.
    166      1.1  christos </p>
    167      1.1  christos <p>THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES
    168      1.1  christos 	WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
    169      1.1  christos 	MERCHANTABILITY AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR
    170      1.1  christos 	ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
    171      1.1  christos 	WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
    172      1.1  christos 	ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
    173      1.1  christos 	OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
    174      1.1  christos </p><a name="toc"></a><br /><hr />
    175      1.1  christos <h3>Table of Contents</h3>
    176      1.1  christos <p class="toc">
    177      1.1  christos <a href="#anchor1">1.</a>&nbsp;
    178      1.1  christos Introduction<br />
    179      1.1  christos <br />
    180      1.1  christos <a href="#anchor2">2.</a>&nbsp;
    181      1.1  christos Definition: Reference Implementation<br />
    182      1.1  christos <br />
    183      1.1  christos <a href="#anchor3">3.</a>&nbsp;
    184      1.1  christos Low Layer References<br />
    185      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor4">3.1.</a>&nbsp;
    186      1.1  christos Ethernet Protocol References<br />
    187      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor5">3.2.</a>&nbsp;
    188      1.1  christos Token Ring Protocol References<br />
    189      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor6">3.3.</a>&nbsp;
    190      1.1  christos FDDI Protocol References<br />
    191      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor7">3.4.</a>&nbsp;
    192      1.1  christos Internet Protocol Version 4 References<br />
    193      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor8">3.5.</a>&nbsp;
    194      1.1  christos Unicast Datagram Protocol References<br />
    195      1.1  christos <br />
    196      1.1  christos <a href="#anchor9">4.</a>&nbsp;
    197      1.1  christos BOOTP Protocol References<br />
    198      1.1  christos <br />
    199      1.1  christos <a href="#anchor10">5.</a>&nbsp;
    200      1.1  christos DHCPv4 Protocol References<br />
    201      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor11">5.1.</a>&nbsp;
    202      1.1  christos DHCPv4 Protocol<br />
    203      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor12">5.1.1.</a>&nbsp;
    204      1.1  christos Core Protocol References<br />
    205      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor13">5.2.</a>&nbsp;
    206      1.1  christos DHCPv4 Option References<br />
    207      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor14">5.2.1.</a>&nbsp;
    208      1.1  christos Relay Agent Information Option Options<br />
    209      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor15">5.2.2.</a>&nbsp;
    210      1.1  christos Dynamic DNS Updates References<br />
    211      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor16">5.2.3.</a>&nbsp;
    212      1.1  christos Experimental: Failover References<br />
    213      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor17">5.3.</a>&nbsp;
    214      1.1  christos DHCP Procedures<br />
    215      1.1  christos <br />
    216      1.1  christos <a href="#anchor18">6.</a>&nbsp;
    217      1.1  christos DHCPv6 Protocol References<br />
    218      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor19">6.1.</a>&nbsp;
    219      1.1  christos DHCPv6 Protocol References<br />
    220      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#anchor20">6.2.</a>&nbsp;
    221      1.1  christos DHCPv6 Options References<br />
    222      1.1  christos <br />
    223      1.1  christos <a href="#rfc.references1">7.</a>&nbsp;
    224      1.1  christos References<br />
    225      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#rfc.references1">7.1.</a>&nbsp;
    226      1.1  christos Published DHCPv4 References<br />
    227      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#rfc.references2">7.2.</a>&nbsp;
    228      1.1  christos Published Common (DHCPv4/DHCPv6) References<br />
    229      1.1  christos &nbsp;&nbsp;&nbsp;&nbsp;<a href="#rfc.references3">7.3.</a>&nbsp;
    230      1.1  christos Published DHCPv6 References<br />
    231      1.1  christos <br />
    232      1.1  christos <a href="#rfc.authors">&#167;</a>&nbsp;
    233      1.1  christos Authors' Addresses<br />
    234      1.1  christos </p>
    235      1.1  christos <br clear="all" />
    236      1.1  christos 
    237      1.1  christos <a name="anchor1"></a><br /><hr />
    238      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    239      1.1  christos <a name="rfc.section.1"></a><h3>1.&nbsp;
    240      1.1  christos Introduction</h3>
    241      1.1  christos 
    242      1.1  christos <p>As a little historical anecdote, ISC DHCP once packaged all the
    243      1.1  christos 	relevant RFCs and standards documents along with the software
    244      1.1  christos 	package.  Until one day when a voice was heard from one of the
    245      1.1  christos 	many fine institutions that build and distribute this software...
    246      1.1  christos 	they took issue with the IETF's copyright on the RFC's.  It
    247      1.1  christos 	seems the IETF's copyrights don't allow modification of RFC's
    248      1.1  christos 	(except for translation purposes).
    249      1.1  christos </p>
    250      1.1  christos <p>Our main purpose in providing the RFCs is to aid in
    251      1.1  christos 	documentation, but since RFCs are now available widely from many
    252      1.1  christos 	points of distribution on the Internet, there is no real need to
    253      1.1  christos 	provide the documents themselves.  So, this document has been
    254      1.1  christos 	created in their stead, to list the various IETF RFCs one might
    255      1.1  christos 	want to read, and to comment on how well (or poorly) we have
    256      1.1  christos 	managed to implement them.
    257      1.1  christos </p>
    258      1.1  christos <a name="anchor2"></a><br /><hr />
    259      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    260      1.1  christos <a name="rfc.section.2"></a><h3>2.&nbsp;
    261      1.1  christos Definition: Reference Implementation</h3>
    262      1.1  christos 
    263      1.1  christos <p>ISC DHCP, much like its other cousins in ISC software, is
    264      1.1  christos 	self-described as a 'Reference Implementation.'  There has been
    265      1.1  christos 	a great deal of confusion about this term.  Some people seem to
    266      1.1  christos 	think that this term applies to any software that once passed
    267      1.1  christos 	a piece of reference material on its way to market (but may do
    268      1.1  christos 	quite a lot of things that aren't described in any reference, or
    269      1.1  christos 	may choose to ignore the reference it saw entirely).  Other folks
    270      1.1  christos 	get confused by the word 'reference' and understand that to mean
    271      1.1  christos 	that there is some special status applied to the software - that
    272      1.1  christos 	the software itself is the reference by which all other software
    273      1.1  christos 	is measured.  Something along the lines of being "The DHCP
    274      1.1  christos 	Protocol's Reference Clock," it is supposed.
    275      1.1  christos </p>
    276      1.1  christos <p>The truth is actually quite a lot simpler.  Reference
    277      1.1  christos 	implementations are software packages which were written
    278      1.1  christos 	to behave precisely as appears in reference material.  They
    279      1.1  christos 	are written "to match reference."
    280      1.1  christos </p>
    281      1.1  christos <p>If the software has a behaviour that manifests itself
    282      1.1  christos 	externally (whether it be something as simple as the 'wire
    283      1.1  christos 	format' or something higher level, such as a complicated
    284      1.1  christos 	behaviour that arises from multiple message exchanges), that
    285      1.1  christos 	behaviour must be found in a reference document.
    286      1.1  christos </p>
    287      1.1  christos <p>Anything else is a bug, the only question is whether the
    288      1.1  christos 	bug is in reference or software (failing to implement the
    289      1.1  christos 	reference).
    290      1.1  christos </p>
    291      1.1  christos <p>This means:
    292      1.1  christos </p>
    293      1.1  christos <p>
    294      1.1  christos       </p>
    295      1.1  christos <ul class="text">
    296      1.1  christos <li>To produce new externally-visible behaviour, one must first
    297      1.1  christos 	provide a reference.
    298      1.1  christos </li>
    299      1.1  christos <li>Before changing externally visible behaviour to work around
    300      1.1  christos 	simple incompatibilities in any other implementation, one must
    301      1.1  christos 	first provide a reference.
    302      1.1  christos </li>
    303      1.1  christos </ul><p>
    304  1.1.1.2  christos 
    305      1.1  christos </p>
    306      1.1  christos <p>That is the lofty goal, at any rate.  It's well understood that,
    307      1.1  christos 	especially because the ISC DHCP Software package has not always been
    308      1.1  christos 	held to this standard (but not entirely due to it), there are many
    309      1.1  christos 	non-referenced behaviours within ISC DHCP.
    310      1.1  christos </p>
    311      1.1  christos <p>The primary goal of reference implementation is to prove the
    312      1.1  christos 	reference material.  If the reference material is good, then you
    313      1.1  christos 	should be able to sit down and write a program that implements the
    314      1.1  christos 	reference, to the word, and come to an implementation that
    315      1.1  christos 	is distinguishable from others in the details, but not in the
    316      1.1  christos 	facts of operating the protocol.  This means that there is no
    317      1.1  christos 	need for 'special knowledge' to work around arcane problems that
    318      1.1  christos 	were left undocumented.  No secret handshakes need to be learned
    319      1.1  christos 	to be imparted with the necessary "real documentation".
    320      1.1  christos </p>
    321      1.1  christos <p>Also, by accepting only reference as the guidebook for ISC
    322      1.1  christos 	DHCP's software implementation, anyone who can make an impact on
    323      1.1  christos 	the color texture or form of that reference has a (somewhat
    324      1.1  christos 	indirect) voice in ISC DHCP's software design.  As the IETF RFC's
    325      1.1  christos 	have been selected as the source of reference, that means everyone
    326      1.1  christos 	on the Internet with the will to participate has a say.
    327      1.1  christos </p>
    328      1.1  christos <a name="anchor3"></a><br /><hr />
    329      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    330      1.1  christos <a name="rfc.section.3"></a><h3>3.&nbsp;
    331      1.1  christos Low Layer References</h3>
    332      1.1  christos 
    333      1.1  christos <p>It may surprise you to realize that ISC DHCP implements 802.1
    334      1.1  christos 	'Ethernet' framing, Token Ring, and FDDI.  In order to bridge the
    335      1.1  christos 	gap there between these physical and DHCP layers, it must also
    336      1.1  christos 	implement IP and UDP framing.
    337      1.1  christos </p>
    338      1.1  christos <p>The reason for this stems from Unix systems' handling of BSD
    339      1.1  christos 	sockets (the general way one might engage in transmission of UDP
    340      1.1  christos 	packets) on unconfigured interfaces, or even the handling of
    341      1.1  christos 	broadcast addressing on configured interfaces.
    342      1.1  christos </p>
    343      1.1  christos <p>There are a few things that DHCP servers, relays, and clients all
    344      1.1  christos 	need to do in order to speak the DHCP protocol in strict compliance
    345      1.1  christos 	with <a class='info' href='#RFC2131'>[RFC2131]<span> (</span><span class='info'>Droms, R., &ldquo;Dynamic Host Configuration Protocol,&rdquo; March&nbsp;1997.</span><span>)</span></a>.
    346      1.1  christos 
    347      1.1  christos       </p>
    348      1.1  christos <ol class="text">
    349      1.1  christos <li>Transmit a UDP packet from IP:0.0.0.0 Ethernet:Self, destined to
    350      1.1  christos 	IP:255.255.255.255 LinkLayer:Broadcast on an unconfigured (no IP
    351      1.1  christos 	address yet) interface.
    352      1.1  christos </li>
    353      1.1  christos <li>Receive a UDP packet from IP:remote-system LinkLayer:remote-system,
    354      1.1  christos 	destined to IP:255.255.255.255 LinkLayer:Broadcast, again on an
    355      1.1  christos 	unconfigured interface.
    356      1.1  christos </li>
    357      1.1  christos <li>Transmit a UDP packet from IP:Self, Ethernet:Self, destined to
    358      1.1  christos 	IP:remote-system LinkLayer:remote-system, without transmitting a
    359      1.1  christos 	single ARP.
    360      1.1  christos </li>
    361      1.1  christos <li>And of course the simple case, a regular IP unicast that is
    362      1.1  christos 	routed via the usual means (so it may be direct to a local system,
    363      1.1  christos 	with ARP providing the glue, or it may be to a remote system via
    364      1.1  christos 	one or more routers as normal).  In this case, the interfaces are
    365      1.1  christos 	always configured.
    366      1.1  christos </li>
    367      1.1  christos </ol>
    368      1.1  christos 
    369      1.1  christos <p>The above isn't as simple as it sounds on a regular BSD socket.
    370      1.1  christos 	Many unix implementations will transmit broadcasts not to
    371      1.1  christos 	255.255.255.255, but to x.y.z.255 (where x.y.z is the system's local
    372      1.1  christos 	subnet).  Such packets are not received by several known DHCP client
    373      1.1  christos 	implementations - and it's not their fault, <a class='info' href='#RFC2131'>[RFC2131]<span> (</span><span class='info'>Droms, R., &ldquo;Dynamic Host Configuration Protocol,&rdquo; March&nbsp;1997.</span><span>)</span></a>
    374      1.1  christos 	very explicitly demands that these packets' IP destination
    375      1.1  christos 	addresses be set to 255.255.255.255.
    376      1.1  christos </p>
    377      1.1  christos <p>Receiving packets sent to 255.255.255.255 isn't a problem on most
    378      1.1  christos 	modern unixes...so long as the interface is configured.  When there
    379      1.1  christos 	is no IPv4 address on the interface, things become much more murky.
    380      1.1  christos </p>
    381      1.1  christos <p>So, for this convoluted and unfortunate state of affairs in the
    382      1.1  christos 	unix systems of the day ISC DHCP was manufactured, in order to do
    383      1.1  christos 	what it needs not only to implement the reference but to interoperate
    384      1.1  christos 	with other implementations, the software must create some form of
    385      1.1  christos 	raw socket to operate on.
    386      1.1  christos </p>
    387      1.1  christos <p>What it actually does is create, for each interface detected on
    388      1.1  christos 	the system, a Berkeley Packet Filter socket (or equivalent), and
    389      1.1  christos 	program it with a filter that brings in only DHCP packets.  A
    390      1.1  christos 	"fallback" UDP Berkeley socket is generally also created, a single
    391      1.1  christos 	one no matter how many interfaces.  Should the software need to
    392      1.1  christos 	transmit a contrived packet to the local network the packet is
    393      1.1  christos 	formed piece by piece and transmitted via the BPF socket.  Hence
    394      1.1  christos 	the need to implement many forms of Link Layer framing and above.
    395      1.1  christos 	The software gets away with not having to implement IP routing
    396      1.1  christos 	tables as well by simply utilizing the aforementioned 'fallback'
    397  1.1.1.2  christos 	UDP socket when unicasting between two configured systems is
    398      1.1  christos 	needed.
    399      1.1  christos </p>
    400      1.1  christos <p>Modern unixes have opened up some facilities that diminish how
    401      1.1  christos 	much of this sort of nefarious kludgery is necessary, but have not
    402      1.1  christos 	found the state of affairs absolutely resolved.  In particular,
    403      1.1  christos 	one might now unicast without ARP by inserting an entry into the
    404      1.1  christos 	ARP cache prior to transmitting.  Unconfigured interfaces remain
    405      1.1  christos 	the sticking point, however...on virtually no modern unixes is
    406      1.1  christos 	it possible to receive broadcast packets unless a local IPv4
    407      1.1  christos 	address has been configured, unless it is done with raw sockets.
    408      1.1  christos </p>
    409      1.1  christos <a name="anchor4"></a><br /><hr />
    410      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    411      1.1  christos <a name="rfc.section.3.1"></a><h3>3.1.&nbsp;
    412      1.1  christos Ethernet Protocol References</h3>
    413      1.1  christos 
    414      1.1  christos <p>ISC DHCP Implements Ethernet Version 2 ("DIX"), which is a variant
    415      1.1  christos 	of IEEE 802.2.  No good reference of this framing is known to exist
    416      1.1  christos 	at this time, but it is vaguely described in <a class='info' href='#RFC0894'>[RFC0894]<span> (</span><span class='info'>Hornig, C., &ldquo;Standard for the transmission of IP datagrams over Ethernet networks,&rdquo; April&nbsp;1984.</span><span>)</span></a>
    417      1.1  christos 	see the section titled "Packet format"), and
    418      1.1  christos 	the following URL is also thought to be useful.
    419      1.1  christos </p>
    420      1.1  christos <p><a href='http://en.wikipedia.org/wiki/DIX_Ethernet'>http://en.wikipedia.org/wiki/DIX_Ethernet</a>
    421      1.1  christos </p>
    422      1.1  christos <a name="anchor5"></a><br /><hr />
    423      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    424      1.1  christos <a name="rfc.section.3.2"></a><h3>3.2.&nbsp;
    425      1.1  christos Token Ring Protocol References</h3>
    426      1.1  christos 
    427      1.1  christos <p>IEEE 802.5 defines the Token Ring framing format used by ISC
    428      1.1  christos 	DHCP.
    429      1.1  christos </p>
    430      1.1  christos <a name="anchor6"></a><br /><hr />
    431      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    432      1.1  christos <a name="rfc.section.3.3"></a><h3>3.3.&nbsp;
    433      1.1  christos FDDI Protocol References</h3>
    434      1.1  christos 
    435      1.1  christos <p><a class='info' href='#RFC1188'>[RFC1188]<span> (</span><span class='info'>Katz, D., &ldquo;Proposed Standard for the Transmission of IP Datagrams over FDDI Networks,&rdquo; October&nbsp;1990.</span><span>)</span></a> is the most helpful
    436      1.1  christos 	reference ISC DHCP has used to form FDDI packets.
    437      1.1  christos </p>
    438      1.1  christos <a name="anchor7"></a><br /><hr />
    439      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    440      1.1  christos <a name="rfc.section.3.4"></a><h3>3.4.&nbsp;
    441      1.1  christos Internet Protocol Version 4 References</h3>
    442      1.1  christos 
    443      1.1  christos <p><a class='info' href='#RFC0760'>RFC760<span> (</span><span class='info'>Postel, J., &ldquo;DoD standard Internet Protocol,&rdquo; January&nbsp;1980.</span><span>)</span></a> [RFC0760] fundamentally defines the
    444      1.1  christos 	bare IPv4 protocol which ISC DHCP implements.
    445      1.1  christos </p>
    446      1.1  christos <a name="anchor8"></a><br /><hr />
    447      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    448      1.1  christos <a name="rfc.section.3.5"></a><h3>3.5.&nbsp;
    449      1.1  christos Unicast Datagram Protocol References</h3>
    450      1.1  christos 
    451      1.1  christos <p><a class='info' href='#RFC0768'>RFC768<span> (</span><span class='info'>Postel, J., &ldquo;User Datagram Protocol,&rdquo; August&nbsp;1980.</span><span>)</span></a> [RFC0768] defines the User Datagram
    452      1.1  christos 	Protocol that ultimately carries the DHCP or BOOTP protocol.  The
    453      1.1  christos 	destination DHCP server port is 67, the client port is 68.  Source
    454      1.1  christos 	ports are irrelevant.
    455      1.1  christos </p>
    456      1.1  christos <a name="anchor9"></a><br /><hr />
    457      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    458      1.1  christos <a name="rfc.section.4"></a><h3>4.&nbsp;
    459      1.1  christos BOOTP Protocol References</h3>
    460      1.1  christos 
    461      1.1  christos <p>The DHCP Protocol is strange among protocols in that it is
    462      1.1  christos 	grafted over the top of another protocol - BOOTP (but we don't
    463      1.1  christos 	call it "DHCP over BOOTP" like we do, say "TCP over IP").  BOOTP
    464      1.1  christos 	and DHCP share UDP packet formats - DHCP is merely a conventional
    465      1.1  christos 	use of both BOOTP header fields and the trailing 'options' space.
    466      1.1  christos </p>
    467      1.1  christos <p>The ISC DHCP server supports BOOTP clients conforming to
    468      1.1  christos 	<a class='info' href='#RFC0951'>RFC951<span> (</span><span class='info'>Croft, B. and J. Gilmore, &ldquo;Bootstrap Protocol,&rdquo; September&nbsp;1985.</span><span>)</span></a> [RFC0951] and <a class='info' href='#RFC1542'>RFC1542<span> (</span><span class='info'>Wimer, W., &ldquo;Clarifications and Extensions for the Bootstrap Protocol,&rdquo; October&nbsp;1993.</span><span>)</span></a> [RFC1542].
    469      1.1  christos </p>
    470      1.1  christos <a name="anchor10"></a><br /><hr />
    471      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    472      1.1  christos <a name="rfc.section.5"></a><h3>5.&nbsp;
    473      1.1  christos DHCPv4 Protocol References</h3>
    474      1.1  christos 
    475      1.1  christos <a name="anchor11"></a><br /><hr />
    476      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    477      1.1  christos <a name="rfc.section.5.1"></a><h3>5.1.&nbsp;
    478      1.1  christos DHCPv4 Protocol</h3>
    479      1.1  christos 
    480      1.1  christos <p>"The DHCP[v4] Protocol" is not defined in a single document.  The
    481      1.1  christos 	following collection of references of what ISC DHCP terms "The
    482      1.1  christos 	DHCPv4 Protocol".
    483      1.1  christos </p>
    484      1.1  christos <a name="anchor12"></a><br /><hr />
    485      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    486      1.1  christos <a name="rfc.section.5.1.1"></a><h3>5.1.1.&nbsp;
    487      1.1  christos Core Protocol References</h3>
    488      1.1  christos 
    489      1.1  christos <p><a class='info' href='#RFC2131'>RFC2131<span> (</span><span class='info'>Droms, R., &ldquo;Dynamic Host Configuration Protocol,&rdquo; March&nbsp;1997.</span><span>)</span></a> [RFC2131] defines the protocol format
    490      1.1  christos 	and procedures.  ISC DHCP is not known to diverge from this document
    491      1.1  christos 	in any way.  There are, however, a few points on which different
    492      1.1  christos 	implementations have arisen out of vagueries in the document.
    493      1.1  christos 	DHCP Clients exist which, at one time, present themselves as using
    494      1.1  christos 	a Client Identifier Option which is equal to the client's hardware
    495      1.1  christos 	address.  Later, the client transmits DHCP packets with no Client
    496      1.1  christos 	Identifier Option present - essentially identifying themselves using
    497      1.1  christos 	the hardware address.  Some DHCP Servers have been developed which
    498      1.1  christos 	identify this client as a single client.  ISC has interpreted
    499      1.1  christos 	RFC2131 to indicate that these clients must be treated as two
    500      1.1  christos 	separate entities (and hence two, separate addresses).  Client
    501      1.1  christos 	behaviour (Embedded Windows products) has developed that relies on
    502      1.1  christos 	the former implementation, and hence is incompatible with the
    503      1.1  christos 	latter.  Also, RFC2131 demands explicitly that some header fields
    504      1.1  christos 	be zeroed upon certain message types.  The ISC DHCP Server instead
    505      1.1  christos 	copies many of these fields from the packet received from the client
    506      1.1  christos 	or relay, which may not be zero.  It is not known if there is a good
    507      1.1  christos 	reason for this that has not been documented.
    508      1.1  christos </p>
    509      1.1  christos <p><a class='info' href='#RFC2132'>RFC2132<span> (</span><span class='info'>Alexander, S. and R. Droms, &ldquo;DHCP Options and BOOTP Vendor Extensions,&rdquo; March&nbsp;1997.</span><span>)</span></a> [RFC2132] defines the initial set of
    510      1.1  christos 	DHCP Options and provides a great deal of guidance on how to go about
    511      1.1  christos 	formatting and processing options.  The document unfortunately
    512      1.1  christos 	waffles to a great extent about the NULL termination of DHCP Options,
    513      1.1  christos 	and some DHCP Clients (Windows 95) have been implemented that rely
    514      1.1  christos 	upon DHCP Options containing text strings to be NULL-terminated (or
    515      1.1  christos 	else they crash).  So, ISC DHCP detects if clients null-terminate the
    516      1.1  christos 	host-name option and, if so, null terminates any text options it
    517      1.1  christos 	transmits to the client.  It also removes NULL termination from any
    518      1.1  christos 	known text option it receives prior to any other processing.
    519      1.1  christos </p>
    520      1.1  christos <a name="anchor13"></a><br /><hr />
    521      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    522      1.1  christos <a name="rfc.section.5.2"></a><h3>5.2.&nbsp;
    523      1.1  christos DHCPv4 Option References</h3>
    524      1.1  christos 
    525      1.1  christos <p><a class='info' href='#RFC2241'>RFC2241<span> (</span><span class='info'>Provan, D., &ldquo;DHCP Options for Novell Directory Services,&rdquo; November&nbsp;1997.</span><span>)</span></a> [RFC2241] defines options for
    526      1.1  christos 	Novell Directory Services.
    527      1.1  christos </p>
    528      1.1  christos <p><a class='info' href='#RFC2242'>RFC2242<span> (</span><span class='info'>Droms, R. and K. Fong, &ldquo;NetWare/IP Domain Name and Information,&rdquo; November&nbsp;1997.</span><span>)</span></a> [RFC2242] defines an encapsulated
    529      1.1  christos 	option space for NWIP configuration.
    530      1.1  christos </p>
    531      1.1  christos <p><a class='info' href='#RFC2485'>RFC2485<span> (</span><span class='info'>Drach, S., &ldquo;DHCP Option for The Open Group&apos;s User Authentication Protocol,&rdquo; January&nbsp;1999.</span><span>)</span></a> [RFC2485] defines the Open Group's
    532      1.1  christos 	UAP option.
    533      1.1  christos </p>
    534      1.1  christos <p><a class='info' href='#RFC2610'>RFC2610<span> (</span><span class='info'>Perkins, C. and E. Guttman, &ldquo;DHCP Options for Service Location Protocol,&rdquo; June&nbsp;1999.</span><span>)</span></a> [RFC2610] defines options for
    535      1.1  christos 	the Service Location Protocol (SLP).
    536      1.1  christos </p>
    537      1.1  christos <p><a class='info' href='#RFC2937'>RFC2937<span> (</span><span class='info'>Smith, C., &ldquo;The Name Service Search Option for DHCP,&rdquo; September&nbsp;2000.</span><span>)</span></a> [RFC2937] defines the Name Service
    538      1.1  christos 	Search Option (not to be confused with the domain-search option).
    539      1.1  christos 	The Name Service Search Option allows eg nsswitch.conf to be
    540      1.1  christos 	reconfigured via dhcp.  The ISC DHCP server implements this option,
    541      1.1  christos 	and the ISC DHCP client is compatible...but does not by default
    542      1.1  christos 	install this option's value.  One would need to make their relevant
    543      1.1  christos 	dhclient-script process this option in a way that is suitable for
    544      1.1  christos 	the system.
    545      1.1  christos </p>
    546      1.1  christos <p><a class='info' href='#RFC3004'>RFC3004<span> (</span><span class='info'>Stump, G., Droms, R., Gu, Y., Vyaghrapuri, R., Demirtjis, A., Beser, B., and J. Privat, &ldquo;The User Class Option for DHCP,&rdquo; November&nbsp;2000.</span><span>)</span></a> [RFC3004] defines the User-Class
    547      1.1  christos 	option.  Note carefully that ISC DHCP currently does not implement
    548      1.1  christos 	to this reference, but has (inexplicably) selected an incompatible
    549      1.1  christos 	format: a plain text string.
    550      1.1  christos </p>
    551      1.1  christos <p><a class='info' href='#RFC3011'>RFC3011<span> (</span><span class='info'>Waters, G., &ldquo;The IPv4 Subnet Selection Option for DHCP,&rdquo; November&nbsp;2000.</span><span>)</span></a> [RFC3011] defines the Subnet-Selection
    552      1.1  christos 	plain DHCPv4 option.  Do not confuse this option with the relay agent
    553      1.1  christos 	"link selection" sub-option, although their behaviour is
    554      1.1  christos 	similar.
    555      1.1  christos </p>
    556      1.1  christos <p><a class='info' href='#RFC3396'>RFC3396<span> (</span><span class='info'>Lemon, T. and S. Cheshire, &ldquo;Encoding Long Options in the Dynamic Host Configuration Protocol (DHCPv4),&rdquo; November&nbsp;2002.</span><span>)</span></a> [RFC3396] documents both how long
    557      1.1  christos 	options may be encoded in DHCPv4 packets, and also how multiple
    558      1.1  christos 	instances of the same option code within a DHCPv4 packet will be
    559      1.1  christos 	decoded by receivers.
    560      1.1  christos </p>
    561      1.1  christos <p><a class='info' href='#RFC3397'>RFC3397<span> (</span><span class='info'>Aboba, B. and S. Cheshire, &ldquo;Dynamic Host Configuration Protocol (DHCP) Domain Search Option,&rdquo; November&nbsp;2002.</span><span>)</span></a> [RFC3397] documents the Domain-Search
    562      1.1  christos 	Option, which allows the configuration of the /etc/resolv.conf
    563      1.1  christos 	'search' parameter in a way that is <a class='info' href='#RFC1035'>RFC1035<span> (</span><span class='info'>Mockapetris, P., &ldquo;Domain names - implementation and specification,&rdquo; November&nbsp;1987.</span><span>)</span></a> [RFC1035] wire format compatible (in fact, it uses the RFC1035 wire
    564      1.1  christos 	format).  ISC DHCP has both client and server support, and supports
    565      1.1  christos 	RFC1035 name compression.
    566      1.1  christos </p>
    567      1.1  christos <p><a class='info' href='#RFC3679'>RFC3679<span> (</span><span class='info'>Droms, R., &ldquo;Unused Dynamic Host Configuration Protocol (DHCP) Option Codes,&rdquo; January&nbsp;2004.</span><span>)</span></a> [RFC3679] documents a number of
    568      1.1  christos 	options that were documented earlier in history, but were not
    569      1.1  christos 	made use of.
    570      1.1  christos </p>
    571      1.1  christos <p><a class='info' href='#RFC3925'>RFC3925<span> (</span><span class='info'>Littlefield, J., &ldquo;Vendor-Identifying Vendor Options for Dynamic Host Configuration Protocol version 4 (DHCPv4),&rdquo; October&nbsp;2004.</span><span>)</span></a> [RFC3925] documents a pair of
    572      1.1  christos 	Enterprise-ID delimited option spaces for vendors to use in order
    573      1.1  christos 	to inform servers of their "vendor class" (sort of like 'uname'
    574      1.1  christos 	or 'who and what am I'), and a means to deliver vendor-specific
    575      1.1  christos 	and vendor-documented option codes and values.
    576      1.1  christos </p>
    577      1.1  christos <p><a class='info' href='#RFC3942'>RFC3942<span> (</span><span class='info'>Volz, B., &ldquo;Reclassifying Dynamic Host Configuration Protocol version 4 (DHCPv4) Options,&rdquo; November&nbsp;2004.</span><span>)</span></a> [RFC3942] redefined the 'site local'
    578      1.1  christos 	option space.
    579      1.1  christos </p>
    580      1.1  christos <p><a class='info' href='#RFC4280'>[RFC4280]<span> (</span><span class='info'>Chowdhury, K., Yegani, P., and L. Madour, &ldquo;Dynamic Host Configuration Protocol (DHCP) Options for Broadcast and Multicast Control Servers,&rdquo; November&nbsp;2005.</span><span>)</span></a> defines two BCMS server options
    581      1.1  christos 	for each protocol family.
    582      1.1  christos </p>
    583      1.1  christos <p><a class='info' href='#RFC4388'>RFC4388<span> (</span><span class='info'>Woundy, R. and K. Kinnear, &ldquo;Dynamic Host Configuration Protocol (DHCP) Leasequery,&rdquo; February&nbsp;2006.</span><span>)</span></a> [RFC4388] defined the DHCPv4
    584      1.1  christos 	LEASEQUERY message type and a number of suitable response messages,
    585      1.1  christos 	for the purpose of sharing information about DHCP served addresses
    586      1.1  christos 	and clients.
    587      1.1  christos </p>
    588      1.1  christos <a name="anchor14"></a><br /><hr />
    589      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    590      1.1  christos <a name="rfc.section.5.2.1"></a><h3>5.2.1.&nbsp;
    591      1.1  christos Relay Agent Information Option Options</h3>
    592      1.1  christos 
    593      1.1  christos <p><a class='info' href='#RFC3046'>RFC3046<span> (</span><span class='info'>Patrick, M., &ldquo;DHCP Relay Agent Information Option,&rdquo; January&nbsp;2001.</span><span>)</span></a> [RFC3046] defines the Relay Agent
    594      1.1  christos 	  Information Option and provides a number of sub-option
    595      1.1  christos 	  definitions.
    596      1.1  christos </p>
    597      1.1  christos <p><a class='info' href='#RFC3256'>RFC3256<span> (</span><span class='info'>Jones, D. and R. Woundy, &ldquo;The DOCSIS (Data-Over-Cable Service Interface Specifications) Device Class DHCP (Dynamic Host Configuration Protocol) Relay Agent Information Sub-option,&rdquo; April&nbsp;2002.</span><span>)</span></a> [RFC3256] defines the DOCSIS Device
    598      1.1  christos 	  Class sub-option.
    599      1.1  christos </p>
    600      1.1  christos <p><a class='info' href='#RFC3527'>RFC3527<span> (</span><span class='info'>Kinnear, K., Stapp, M., Johnson, R., and J. Kumarasamy, &ldquo;Link Selection sub-option for the Relay Agent Information Option for DHCPv4,&rdquo; April&nbsp;2003.</span><span>)</span></a> [RFC3527] defines the Link Selection
    601      1.1  christos 	  sub-option.
    602      1.1  christos </p>
    603      1.1  christos <a name="anchor15"></a><br /><hr />
    604      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    605      1.1  christos <a name="rfc.section.5.2.2"></a><h3>5.2.2.&nbsp;
    606      1.1  christos Dynamic DNS Updates References</h3>
    607      1.1  christos 
    608      1.1  christos <p>The collection of documents that describe the standards-based
    609      1.1  christos 	  method to update dns names of DHCP clients starts most easily
    610      1.1  christos 	  with <a class='info' href='#RFC4703'>RFC4703<span> (</span><span class='info'>Stapp, M. and B. Volz, &ldquo;Resolution of Fully Qualified Domain Name (FQDN) Conflicts among Dynamic Host Configuration Protocol (DHCP) Clients,&rdquo; October&nbsp;2006.</span><span>)</span></a> [RFC4703] to define the overall
    611      1.1  christos 	  architecture, travels through RFCs <a class='info' href='#RFC4702'>4702<span> (</span><span class='info'>Stapp, M., Volz, B., and Y. Rekhter, &ldquo;The Dynamic Host Configuration Protocol (DHCP) Client Fully Qualified Domain Name (FQDN) Option,&rdquo; October&nbsp;2006.</span><span>)</span></a> [RFC4702]
    612      1.1  christos 	  and <a class='info' href='#RFC4704'>4704<span> (</span><span class='info'>Volz, B., &ldquo;The Dynamic Host Configuration Protocol for IPv6 (DHCPv6) Client Fully Qualified Domain Name (FQDN) Option,&rdquo; October&nbsp;2006.</span><span>)</span></a> [RFC4704] to describe the DHCPv4 and
    613      1.1  christos 	  DHCPv6 FQDN options (to carry the client name), and ends up at
    614      1.1  christos 	  <a class='info' href='#RFC4701'>RFC4701<span> (</span><span class='info'>Stapp, M., Lemon, T., and A. Gustafsson, &ldquo;A DNS Resource Record (RR) for Encoding Dynamic Host Configuration Protocol (DHCP) Information (DHCID RR),&rdquo; October&nbsp;2006.</span><span>)</span></a> [RFC4701] which describes the DHCID
    615      1.1  christos 	  RR used in DNS to perform a kind of atomic locking.
    616      1.1  christos </p>
    617      1.1  christos <p>ISC DHCP adopted early versions of these documents, and has not
    618      1.1  christos 	  yet synchronized with the final standards versions.
    619      1.1  christos </p>
    620      1.1  christos <p>For RFCs 4702 and 4704, the 'N' bit is not yet supported.  The
    621      1.1  christos 	  result is that it is always set zero, and is ignored if set.
    622      1.1  christos </p>
    623      1.1  christos <p>For RFC4701, which is used to match client identities with names
    624      1.1  christos 	  in the DNS as part of name conflict resolution.  Note that ISC DHCP's
    625      1.1  christos 	  implementation of DHCIDs vary wildly from this specification.
    626      1.1  christos 	  First, ISC DHCP uses a TXT record in which the contents are stored
    627      1.1  christos 	  in hexadecimal.  Second, there is a flaw in the selection of the
    628      1.1  christos 	  'Identifier Type', which results in a completely different value
    629      1.1  christos 	  being selected than was defined in an older revision of this
    630      1.1  christos 	  document...also this field is one byte prior to hexadecimal
    631      1.1  christos 	  encoding rather than two.  Third, ISC DHCP does not use a digest
    632      1.1  christos 	  type code.  Rather, all values for such TXT records are reached
    633      1.1  christos 	  via an MD5 sum.  In short, nothing is compatible, but the
    634      1.1  christos 	  principle of the TXT record is the same as the standard DHCID
    635      1.1  christos 	  record.  However, for DHCPv6 FQDN, we do use DHCID type code '2',
    636      1.1  christos 	  as no other value really makes sense in our context.
    637      1.1  christos </p>
    638      1.1  christos <a name="anchor16"></a><br /><hr />
    639      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    640      1.1  christos <a name="rfc.section.5.2.3"></a><h3>5.2.3.&nbsp;
    641      1.1  christos Experimental: Failover References</h3>
    642      1.1  christos 
    643      1.1  christos <p>The Failover Protocol defines means by which two DHCP Servers
    644      1.1  christos 	  can share all the relevant information about leases granted to
    645      1.1  christos 	  DHCP clients on given networks, so that one of the two servers may
    646      1.1  christos 	  fail and be survived by a server that can act responsibly.
    647      1.1  christos </p>
    648  1.1.1.2  christos <p>Unfortunately it has been quite some years (2003) since the last
    649      1.1  christos 	  time this document was edited, and the authors no longer show any
    650      1.1  christos 	  interest in fielding comments or improving the document.
    651      1.1  christos </p>
    652      1.1  christos <p>The status of this protocol is very unsure, but ISC's
    653      1.1  christos 	  implementation of it has proven stable and suitable for use in
    654      1.1  christos 	  sizable production environments.
    655      1.1  christos </p>
    656      1.1  christos <p><a class='info' href='#draft-failover'>draft-ietf-dhc-failover-12.txt<span> (</span><span class='info'>Droms, R., &ldquo;DHCP Failover Protocol,&rdquo; March&nbsp;2003.</span><span>)</span></a> [draft&#8209;failover]
    657      1.1  christos 	  describes the Failover Protocol.  In addition to what is described
    658      1.1  christos 	  in this document, ISC DHCP has elected to make some experimental
    659      1.1  christos 	  changes that may be revoked in a future version of ISC DHCP (if the
    660      1.1  christos 	  draft authors do not adopt the new behaviour).  Specifically, ISC
    661      1.1  christos 	  DHCP's POOLREQ behaviour differs substantially from what is
    662      1.1  christos 	  documented in the draft, and the server also implements a form of
    663      1.1  christos 	  'MAC Address Affinity' which is not described in the failover
    664      1.1  christos 	  document.  The full nature of these changes have been described on
    665      1.1  christos 	  the IETF DHC WG mailing list (which has archives), and also in ISC
    666      1.1  christos 	  DHCP's manual pages.  Also note that although this document
    667      1.1  christos 	  references a RECOVER-WAIT state, it does not document a protocol
    668      1.1  christos 	  number assignment for this state.  As a consequence, ISC DHCP has
    669      1.1  christos 	  elected to use the value 254.
    670      1.1  christos </p>
    671      1.1  christos <p> An optimization described in the failover protocol draft
    672      1.1  christos 	  is included since 4.2.0a1. It permits a DHCP server
    673      1.1  christos 	  operating in communications-interrupted state to 'rewind' a
    674      1.1  christos 	  lease to the state most recently transmitted to its peer,
    675      1.1  christos 	  greatly increasing a server's endurance in
    676      1.1  christos 	  communications-interrupted.  This is supported using a new
    677      1.1  christos 	  'rewind state' record on the dhcpd.leases entry for each
    678      1.1  christos 	  lease.
    679  1.1.1.2  christos 
    680      1.1  christos </p>
    681      1.1  christos <p><a class='info' href='#RFC3074'>[RFC3074]<span> (</span><span class='info'>Volz, B., Gonczi, S., Lemon, T., and R. Stevens, &ldquo;DHC Load Balancing Algorithm,&rdquo; February&nbsp;2001.</span><span>)</span></a> describes the Load Balancing
    682      1.1  christos 	  Algorithm (LBA) that ISC DHCP uses in concert with the Failover
    683      1.1  christos 	  protocol.  Note that versions 3.0.* are known to misimplement the
    684      1.1  christos 	  hash algorithm (it will only use the low 4 bits of every byte of
    685      1.1  christos 	  the hash bucket array).
    686      1.1  christos </p>
    687      1.1  christos <a name="anchor17"></a><br /><hr />
    688      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    689      1.1  christos <a name="rfc.section.5.3"></a><h3>5.3.&nbsp;
    690      1.1  christos DHCP Procedures</h3>
    691      1.1  christos 
    692      1.1  christos <p><a class='info' href='#RFC2939'>[RFC2939]<span> (</span><span class='info'>Droms, R., &ldquo;Procedures and IANA Guidelines for Definition of New DHCP Options and Message Types,&rdquo; September&nbsp;2000.</span><span>)</span></a> explains how to go about
    693      1.1  christos 	obtaining a new DHCP Option code assignment.
    694      1.1  christos </p>
    695      1.1  christos <a name="anchor18"></a><br /><hr />
    696      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    697      1.1  christos <a name="rfc.section.6"></a><h3>6.&nbsp;
    698      1.1  christos DHCPv6 Protocol References</h3>
    699      1.1  christos 
    700      1.1  christos <a name="anchor19"></a><br /><hr />
    701      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    702      1.1  christos <a name="rfc.section.6.1"></a><h3>6.1.&nbsp;
    703      1.1  christos DHCPv6 Protocol References</h3>
    704      1.1  christos 
    705      1.1  christos <p>For now there is only one document that specifies the base
    706      1.1  christos 	of the DHCPv6 protocol (there have been no updates yet),
    707      1.1  christos 	<a class='info' href='#RFC3315'>[RFC3315]<span> (</span><span class='info'>Droms, R., Bound, J., Volz, B., Lemon, T., Perkins, C., and M. Carney, &ldquo;Dynamic Host Configuration Protocol for IPv6 (DHCPv6),&rdquo; July&nbsp;2003.</span><span>)</span></a>.
    708      1.1  christos </p>
    709      1.1  christos <p>Support for DHCPv6 was first added in version 4.0.0.  The server
    710      1.1  christos 	and client support only IA_NA.  While the server does support multiple
    711      1.1  christos 	IA_NAs within one packet from the client, our client only supports
    712      1.1  christos 	sending one.  There is no relay support.
    713      1.1  christos </p>
    714      1.1  christos <p>DHCPv6 introduces some new and uncomfortable ideas to the common
    715      1.1  christos 	software library.
    716      1.1  christos </p>
    717      1.1  christos <p>
    718      1.1  christos 	</p>
    719      1.1  christos <ol class="text">
    720      1.1  christos <li>Options sometimes may appear multiple times.  The common
    721      1.1  christos 	  library used to treat all appearance of multiple options as
    722      1.1  christos 	  specified in RFC2131 - to be concatenated.  DHCPv6 options
    723      1.1  christos 	  may sometimes appear multiple times (such as with IA_NA or
    724      1.1  christos 	  IAADDR), but often must not. As of 4.2.1-P1, multiple IA_NA, IA_PD
    725      1.1  christos 	  or IA_TA are not supported.
    726      1.1  christos </li>
    727      1.1  christos <li>The same option space appears in DHCPv6 packets multiple times.
    728      1.1  christos 	  If the packet was got via a relay, then the client's packet is
    729      1.1  christos 	  stored to an option within the relay's packet...if there were two
    730      1.1  christos 	  relays, this recurses.  At each of these steps, the root "DHCPv6
    731      1.1  christos 	  option space" is used.  Further, a client packet may contain an
    732      1.1  christos 	  IA_NA, which may contain an IAADDR - but really, in an abstract
    733      1.1  christos 	  sense, this is again re-encapsulation of the DHCPv6 option space
    734      1.1  christos 	  beneath options it also contains.
    735      1.1  christos </li>
    736      1.1  christos </ol><p>
    737  1.1.1.2  christos 
    738      1.1  christos </p>
    739      1.1  christos <p>Precisely how to correctly support the above conundrums has not
    740      1.1  christos 	quite yet been settled, so support is incomplete.
    741      1.1  christos </p>
    742      1.1  christos <p><a class='info' href='#RFC5453'>[RFC5453]<span> (</span><span class='info'>Krishnan, S., &ldquo;Reserved IPv6 Interface Identifiers,&rdquo; February&nbsp;2009.</span><span>)</span></a> creates a registry at IANA to reserve
    743      1.1  christos 	interface identifiers and specifies a starting set.  These IIDs should
    744      1.1  christos 	not be used when constructing addresses to avoid possible conflicts.
    745      1.1  christos </p>
    746      1.1  christos <a name="anchor20"></a><br /><hr />
    747      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    748      1.1  christos <a name="rfc.section.6.2"></a><h3>6.2.&nbsp;
    749      1.1  christos DHCPv6 Options References</h3>
    750      1.1  christos 
    751      1.1  christos <p><a class='info' href='#RFC3319'>[RFC3319]<span> (</span><span class='info'>Schulzrinne, H. and B. Volz, &ldquo;Dynamic Host Configuration Protocol (DHCPv6) Options for Session Initiation Protocol (SIP) Servers,&rdquo; July&nbsp;2003.</span><span>)</span></a> defines the SIP server
    752      1.1  christos 	options for DHCPv6.
    753      1.1  christos </p>
    754      1.1  christos <p><a class='info' href='#RFC3646'>[RFC3646]<span> (</span><span class='info'>Droms, R., &ldquo;DNS Configuration options for Dynamic Host Configuration Protocol for IPv6 (DHCPv6),&rdquo; December&nbsp;2003.</span><span>)</span></a> documents the DHCPv6
    755      1.1  christos 	name-servers and domain-search options.
    756      1.1  christos </p>
    757      1.1  christos <p><a class='info' href='#RFC3633'>[RFC3633]<span> (</span><span class='info'>Troan, O. and R. Droms, &ldquo;IPv6 Prefix Options for Dynamic Host Configuration Protocol (DHCP) version 6,&rdquo; December&nbsp;2003.</span><span>)</span></a> documents the Identity
    758      1.1  christos 	Association Prefix Delegation for DHCPv6, which is included
    759      1.1  christos 	here for protocol wire reference, but which is not supported
    760      1.1  christos 	by ISC DHCP.
    761      1.1  christos </p>
    762      1.1  christos <p><a class='info' href='#RFC3898'>[RFC3898]<span> (</span><span class='info'>Kalusivalingam, V., &ldquo;Network Information Service (NIS) Configuration Options for Dynamic Host Configuration Protocol for IPv6 (DHCPv6),&rdquo; October&nbsp;2004.</span><span>)</span></a> documents four NIS options
    763      1.1  christos 	for delivering NIS servers and domain information in DHCPv6.
    764      1.1  christos </p>
    765      1.1  christos <p><a class='info' href='#RFC4075'>[RFC4075]<span> (</span><span class='info'>Kalusivalingam, V., &ldquo;Simple Network Time Protocol (SNTP) Configuration Option for DHCPv6,&rdquo; May&nbsp;2005.</span><span>)</span></a> defines the DHCPv6 SNTP
    766      1.1  christos 	Servers option.
    767      1.1  christos </p>
    768      1.1  christos <p><a class='info' href='#RFC4242'>[RFC4242]<span> (</span><span class='info'>Venaas, S., Chown, T., and B. Volz, &ldquo;Information Refresh Time Option for Dynamic Host Configuration Protocol for IPv6 (DHCPv6),&rdquo; November&nbsp;2005.</span><span>)</span></a> defines the Information
    769      1.1  christos 	Refresh Time option, which advises DHCPv6 Information-Request
    770      1.1  christos 	clients to return for updated information.
    771      1.1  christos </p>
    772      1.1  christos <p><a class='info' href='#RFC4280'>[RFC4280]<span> (</span><span class='info'>Chowdhury, K., Yegani, P., and L. Madour, &ldquo;Dynamic Host Configuration Protocol (DHCP) Options for Broadcast and Multicast Control Servers,&rdquo; November&nbsp;2005.</span><span>)</span></a> defines two BCMS server options
    773      1.1  christos 	for each protocol family.
    774      1.1  christos </p>
    775      1.1  christos <p><a class='info' href='#RFC4580'>[RFC4580]<span> (</span><span class='info'>Volz, B., &ldquo;Dynamic Host Configuration Protocol for IPv6 (DHCPv6) Relay Agent Subscriber-ID Option,&rdquo; June&nbsp;2006.</span><span>)</span></a> defines a DHCPv6
    776      1.1  christos 	subscriber-id option, which is similar in principle to the DHCPv4
    777      1.1  christos 	relay agent option of the same name.
    778      1.1  christos </p>
    779      1.1  christos <p><a class='info' href='#RFC4649'>[RFC4649]<span> (</span><span class='info'>Volz, B., &ldquo;Dynamic Host Configuration Protocol for IPv6 (DHCPv6) Relay Agent Remote-ID Option,&rdquo; August&nbsp;2006.</span><span>)</span></a> defines a DHCPv6 remote-id
    780      1.1  christos 	option, which is similar in principle to the DHCPv4 relay agent
    781      1.1  christos 	remote-id.
    782      1.1  christos </p>
    783      1.1  christos <a name="rfc.references"></a><br /><hr />
    784      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    785      1.1  christos <a name="rfc.section.7"></a><h3>7.&nbsp;
    786      1.1  christos References</h3>
    787      1.1  christos 
    788      1.1  christos <a name="rfc.references1"></a><br /><hr />
    789      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    790      1.1  christos <h3>7.1.&nbsp;Published DHCPv4 References</h3>
    791      1.1  christos <table width="99%" border="0">
    792      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC0760">[RFC0760]</a></td>
    793      1.1  christos <td class="author-text">Postel, J., &ldquo;<a href="http://tools.ietf.org/html/rfc760">DoD standard Internet Protocol</a>,&rdquo; RFC&nbsp;760, January&nbsp;1980 (<a href="http://www.rfc-editor.org/rfc/rfc760.txt">TXT</a>).</td></tr>
    794      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC0768">[RFC0768]</a></td>
    795      1.1  christos <td class="author-text">Postel, J., &ldquo;<a href="http://tools.ietf.org/html/rfc768">User Datagram Protocol</a>,&rdquo; STD&nbsp;6, RFC&nbsp;768, August&nbsp;1980 (<a href="http://www.rfc-editor.org/rfc/rfc768.txt">TXT</a>).</td></tr>
    796      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC0894">[RFC0894]</a></td>
    797      1.1  christos <td class="author-text">Hornig, C., &ldquo;<a href="http://tools.ietf.org/html/rfc894">Standard for the transmission of IP datagrams over Ethernet networks</a>,&rdquo; STD&nbsp;41, RFC&nbsp;894, April&nbsp;1984 (<a href="http://www.rfc-editor.org/rfc/rfc894.txt">TXT</a>).</td></tr>
    798      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC0951">[RFC0951]</a></td>
    799      1.1  christos <td class="author-text">Croft, B. and J. Gilmore, &ldquo;<a href="http://tools.ietf.org/html/rfc951">Bootstrap Protocol</a>,&rdquo; RFC&nbsp;951, September&nbsp;1985 (<a href="http://www.rfc-editor.org/rfc/rfc951.txt">TXT</a>).</td></tr>
    800      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC1035">[RFC1035]</a></td>
    801      1.1  christos <td class="author-text">Mockapetris, P., &ldquo;<a href="http://tools.ietf.org/html/rfc1035">Domain names - implementation and specification</a>,&rdquo; STD&nbsp;13, RFC&nbsp;1035, November&nbsp;1987 (<a href="http://www.rfc-editor.org/rfc/rfc1035.txt">TXT</a>).</td></tr>
    802      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC1188">[RFC1188]</a></td>
    803      1.1  christos <td class="author-text"><a href="mailto:dkatz (a] merit.edu">Katz, D.</a>, &ldquo;<a href="http://tools.ietf.org/html/rfc1188">Proposed Standard for the Transmission of IP Datagrams over FDDI Networks</a>,&rdquo; RFC&nbsp;1188, October&nbsp;1990 (<a href="http://www.rfc-editor.org/rfc/rfc1188.txt">TXT</a>).</td></tr>
    804      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC1542">[RFC1542]</a></td>
    805      1.1  christos <td class="author-text"><a href="mailto:Walter.Wimer (a] CMU.EDU">Wimer, W.</a>, &ldquo;<a href="http://tools.ietf.org/html/rfc1542">Clarifications and Extensions for the Bootstrap Protocol</a>,&rdquo; RFC&nbsp;1542, October&nbsp;1993 (<a href="http://www.rfc-editor.org/rfc/rfc1542.txt">TXT</a>).</td></tr>
    806      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC2131">[RFC2131]</a></td>
    807      1.1  christos <td class="author-text"><a href="mailto:droms (a] bucknell.edu">Droms, R.</a>, &ldquo;<a href="http://tools.ietf.org/html/rfc2131">Dynamic Host Configuration Protocol</a>,&rdquo; RFC&nbsp;2131, March&nbsp;1997 (<a href="http://www.rfc-editor.org/rfc/rfc2131.txt">TXT</a>, <a href="http://xml.resource.org/public/rfc/html/rfc2131.html">HTML</a>, <a href="http://xml.resource.org/public/rfc/xml/rfc2131.xml">XML</a>).</td></tr>
    808      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC2132">[RFC2132]</a></td>
    809      1.1  christos <td class="author-text"><a href="mailto:sca (a] engr.sgi.com">Alexander, S.</a> and <a href="mailto:droms (a] bucknell.edu">R. Droms</a>, &ldquo;<a href="http://tools.ietf.org/html/rfc2132">DHCP Options and BOOTP Vendor Extensions</a>,&rdquo; RFC&nbsp;2132, March&nbsp;1997 (<a href="http://www.rfc-editor.org/rfc/rfc2132.txt">TXT</a>, <a href="http://xml.resource.org/public/rfc/html/rfc2132.html">HTML</a>, <a href="http://xml.resource.org/public/rfc/xml/rfc2132.xml">XML</a>).</td></tr>
    810      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC2241">[RFC2241]</a></td>
    811      1.1  christos <td class="author-text"><a href="mailto:donp (a] Novell.Com">Provan, D.</a>, &ldquo;<a href="http://tools.ietf.org/html/rfc2241">DHCP Options for Novell Directory Services</a>,&rdquo; RFC&nbsp;2241, November&nbsp;1997 (<a href="http://www.rfc-editor.org/rfc/rfc2241.txt">TXT</a>, <a href="http://xml.resource.org/public/rfc/html/rfc2241.html">HTML</a>, <a href="http://xml.resource.org/public/rfc/xml/rfc2241.xml">XML</a>).</td></tr>
    812      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC2242">[RFC2242]</a></td>
    813      1.1  christos <td class="author-text"><a href="mailto:droms (a] bucknell.edu">Droms, R.</a> and <a href="mailto:kfong (a] novell.com">K. Fong</a>, &ldquo;<a href="http://tools.ietf.org/html/rfc2242">NetWare/IP Domain Name and Information</a>,&rdquo; RFC&nbsp;2242, November&nbsp;1997 (<a href="http://www.rfc-editor.org/rfc/rfc2242.txt">TXT</a>, <a href="http://xml.resource.org/public/rfc/html/rfc2242.html">HTML</a>, <a href="http://xml.resource.org/public/rfc/xml/rfc2242.xml">XML</a>).</td></tr>
    814      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC2485">[RFC2485]</a></td>
    815      1.1  christos <td class="author-text"><a href="mailto:drach (a] sun.com">Drach, S.</a>, &ldquo;<a href="http://tools.ietf.org/html/rfc2485">DHCP Option for The Open Group&#039;s User Authentication Protocol</a>,&rdquo; RFC&nbsp;2485, January&nbsp;1999 (<a href="http://www.rfc-editor.org/rfc/rfc2485.txt">TXT</a>, <a href="http://xml.resource.org/public/rfc/html/rfc2485.html">HTML</a>, <a href="http://xml.resource.org/public/rfc/xml/rfc2485.xml">XML</a>).</td></tr>
    816      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC2563">[RFC2563]</a></td>
    817      1.1  christos <td class="author-text"><a href="mailto:rtroll (a] corp.home.net">Troll, R.</a>, &ldquo;<a href="http://tools.ietf.org/html/rfc2563">DHCP Option to Disable Stateless Auto-Configuration in IPv4 Clients</a>,&rdquo; RFC&nbsp;2563, May&nbsp;1999 (<a href="http://www.rfc-editor.org/rfc/rfc2563.txt">TXT</a>).</td></tr>
    818      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC2610">[RFC2610]</a></td>
    819      1.1  christos <td class="author-text"><a href="mailto:Charles.Perkins (a] Sun.Com">Perkins, C.</a> and <a href="mailto:Erik.Guttman (a] Sun.Com">E. Guttman</a>, &ldquo;<a href="http://tools.ietf.org/html/rfc2610">DHCP Options for Service Location Protocol</a>,&rdquo; RFC&nbsp;2610, June&nbsp;1999 (<a href="http://www.rfc-editor.org/rfc/rfc2610.txt">TXT</a>).</td></tr>
    820      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC2855">[RFC2855]</a></td>
    821      1.1  christos <td class="author-text">Fujisawa, K., &ldquo;<a href="http://tools.ietf.org/html/rfc2855">DHCP for IEEE 1394</a>,&rdquo; RFC&nbsp;2855, June&nbsp;2000 (<a href="http://www.rfc-editor.org/rfc/rfc2855.txt">TXT</a>).</td></tr>
    822      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC2937">[RFC2937]</a></td>
    823      1.1  christos <td class="author-text">Smith, C., &ldquo;<a href="http://tools.ietf.org/html/rfc2937">The Name Service Search Option for DHCP</a>,&rdquo; RFC&nbsp;2937, September&nbsp;2000 (<a href="http://www.rfc-editor.org/rfc/rfc2937.txt">TXT</a>).</td></tr>
    824      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC2939">[RFC2939]</a></td>
    825      1.1  christos <td class="author-text">Droms, R., &ldquo;<a href="http://tools.ietf.org/html/rfc2939">Procedures and IANA Guidelines for Definition of New DHCP Options and Message Types</a>,&rdquo; BCP&nbsp;43, RFC&nbsp;2939, September&nbsp;2000 (<a href="http://www.rfc-editor.org/rfc/rfc2939.txt">TXT</a>).</td></tr>
    826      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3004">[RFC3004]</a></td>
    827      1.1  christos <td class="author-text">Stump, G., Droms, R., Gu, Y., Vyaghrapuri, R., Demirtjis, A., Beser, B., and J. Privat, &ldquo;<a href="http://tools.ietf.org/html/rfc3004">The User Class Option for DHCP</a>,&rdquo; RFC&nbsp;3004, November&nbsp;2000 (<a href="http://www.rfc-editor.org/rfc/rfc3004.txt">TXT</a>).</td></tr>
    828      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3011">[RFC3011]</a></td>
    829      1.1  christos <td class="author-text">Waters, G., &ldquo;<a href="http://tools.ietf.org/html/rfc3011">The IPv4 Subnet Selection Option for DHCP</a>,&rdquo; RFC&nbsp;3011, November&nbsp;2000 (<a href="http://www.rfc-editor.org/rfc/rfc3011.txt">TXT</a>).</td></tr>
    830      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3046">[RFC3046]</a></td>
    831      1.1  christos <td class="author-text">Patrick, M., &ldquo;<a href="http://tools.ietf.org/html/rfc3046">DHCP Relay Agent Information Option</a>,&rdquo; RFC&nbsp;3046, January&nbsp;2001 (<a href="http://www.rfc-editor.org/rfc/rfc3046.txt">TXT</a>).</td></tr>
    832      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3074">[RFC3074]</a></td>
    833      1.1  christos <td class="author-text">Volz, B., Gonczi, S., Lemon, T., and R. Stevens, &ldquo;<a href="http://tools.ietf.org/html/rfc3074">DHC Load Balancing Algorithm</a>,&rdquo; RFC&nbsp;3074, February&nbsp;2001 (<a href="http://www.rfc-editor.org/rfc/rfc3074.txt">TXT</a>).</td></tr>
    834      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3118">[RFC3118]</a></td>
    835      1.1  christos <td class="author-text">Droms, R. and W. Arbaugh, &ldquo;<a href="http://tools.ietf.org/html/rfc3118">Authentication for DHCP Messages</a>,&rdquo; RFC&nbsp;3118, June&nbsp;2001 (<a href="http://www.rfc-editor.org/rfc/rfc3118.txt">TXT</a>).</td></tr>
    836      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3203">[RFC3203]</a></td>
    837      1.1  christos <td class="author-text">T&#039;Joens, Y., Hublet, C., and P. De Schrijver, &ldquo;<a href="http://tools.ietf.org/html/rfc3203">DHCP reconfigure extension</a>,&rdquo; RFC&nbsp;3203, December&nbsp;2001 (<a href="http://www.rfc-editor.org/rfc/rfc3203.txt">TXT</a>).</td></tr>
    838      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3256">[RFC3256]</a></td>
    839      1.1  christos <td class="author-text">Jones, D. and R. Woundy, &ldquo;<a href="http://tools.ietf.org/html/rfc3256">The DOCSIS (Data-Over-Cable Service Interface Specifications) Device Class DHCP (Dynamic Host Configuration Protocol) Relay Agent Information Sub-option</a>,&rdquo; RFC&nbsp;3256, April&nbsp;2002 (<a href="http://www.rfc-editor.org/rfc/rfc3256.txt">TXT</a>).</td></tr>
    840      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3361">[RFC3361]</a></td>
    841      1.1  christos <td class="author-text">Schulzrinne, H., &ldquo;<a href="http://tools.ietf.org/html/rfc3361">Dynamic Host Configuration Protocol (DHCP-for-IPv4) Option for Session Initiation Protocol (SIP) Servers</a>,&rdquo; RFC&nbsp;3361, August&nbsp;2002 (<a href="http://www.rfc-editor.org/rfc/rfc3361.txt">TXT</a>).</td></tr>
    842      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3396">[RFC3396]</a></td>
    843      1.1  christos <td class="author-text">Lemon, T. and S. Cheshire, &ldquo;<a href="http://tools.ietf.org/html/rfc3396">Encoding Long Options in the Dynamic Host Configuration Protocol (DHCPv4)</a>,&rdquo; RFC&nbsp;3396, November&nbsp;2002 (<a href="http://www.rfc-editor.org/rfc/rfc3396.txt">TXT</a>).</td></tr>
    844      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3397">[RFC3397]</a></td>
    845      1.1  christos <td class="author-text">Aboba, B. and S. Cheshire, &ldquo;<a href="http://tools.ietf.org/html/rfc3397">Dynamic Host Configuration Protocol (DHCP) Domain Search Option</a>,&rdquo; RFC&nbsp;3397, November&nbsp;2002 (<a href="http://www.rfc-editor.org/rfc/rfc3397.txt">TXT</a>).</td></tr>
    846      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3442">[RFC3442]</a></td>
    847      1.1  christos <td class="author-text">Lemon, T., Cheshire, S., and B. Volz, &ldquo;<a href="http://tools.ietf.org/html/rfc3442">The Classless Static Route Option for Dynamic Host Configuration Protocol (DHCP) version 4</a>,&rdquo; RFC&nbsp;3442, December&nbsp;2002 (<a href="http://www.rfc-editor.org/rfc/rfc3442.txt">TXT</a>).</td></tr>
    848      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3456">[RFC3456]</a></td>
    849      1.1  christos <td class="author-text">Patel, B., Aboba, B., Kelly, S., and V. Gupta, &ldquo;<a href="http://tools.ietf.org/html/rfc3456">Dynamic Host Configuration Protocol (DHCPv4) Configuration of IPsec Tunnel Mode</a>,&rdquo; RFC&nbsp;3456, January&nbsp;2003 (<a href="http://www.rfc-editor.org/rfc/rfc3456.txt">TXT</a>).</td></tr>
    850      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3495">[RFC3495]</a></td>
    851      1.1  christos <td class="author-text">Beser, B. and P. Duffy, &ldquo;<a href="http://tools.ietf.org/html/rfc3495">Dynamic Host Configuration Protocol (DHCP) Option for CableLabs Client Configuration</a>,&rdquo; RFC&nbsp;3495, March&nbsp;2003 (<a href="http://www.rfc-editor.org/rfc/rfc3495.txt">TXT</a>).</td></tr>
    852      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3527">[RFC3527]</a></td>
    853      1.1  christos <td class="author-text">Kinnear, K., Stapp, M., Johnson, R., and J. Kumarasamy, &ldquo;<a href="http://tools.ietf.org/html/rfc3527">Link Selection sub-option for the Relay Agent Information Option for DHCPv4</a>,&rdquo; RFC&nbsp;3527, April&nbsp;2003 (<a href="http://www.rfc-editor.org/rfc/rfc3527.txt">TXT</a>).</td></tr>
    854      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3594">[RFC3594]</a></td>
    855      1.1  christos <td class="author-text">Duffy, P., &ldquo;<a href="http://tools.ietf.org/html/rfc3594">PacketCable Security Ticket Control Sub-Option for the DHCP CableLabs Client Configuration (CCC) Option</a>,&rdquo; RFC&nbsp;3594, September&nbsp;2003 (<a href="http://www.rfc-editor.org/rfc/rfc3594.txt">TXT</a>).</td></tr>
    856      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3634">[RFC3634]</a></td>
    857      1.1  christos <td class="author-text">Luehrs, K., Woundy, R., Bevilacqua, J., and N. Davoust, &ldquo;<a href="http://tools.ietf.org/html/rfc3634">Key Distribution Center (KDC) Server Address Sub-option for the Dynamic Host Configuration Protocol (DHCP) CableLabs Client Configuration (CCC) Option</a>,&rdquo; RFC&nbsp;3634, December&nbsp;2003 (<a href="http://www.rfc-editor.org/rfc/rfc3634.txt">TXT</a>).</td></tr>
    858      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3679">[RFC3679]</a></td>
    859      1.1  christos <td class="author-text">Droms, R., &ldquo;<a href="http://tools.ietf.org/html/rfc3679">Unused Dynamic Host Configuration Protocol (DHCP) Option Codes</a>,&rdquo; RFC&nbsp;3679, January&nbsp;2004 (<a href="http://www.rfc-editor.org/rfc/rfc3679.txt">TXT</a>).</td></tr>
    860      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3825">[RFC3825]</a></td>
    861      1.1  christos <td class="author-text">Polk, J., Schnizlein, J., and M. Linsner, &ldquo;<a href="http://tools.ietf.org/html/rfc3825">Dynamic Host Configuration Protocol Option for Coordinate-based Location Configuration Information</a>,&rdquo; RFC&nbsp;3825, July&nbsp;2004 (<a href="http://www.rfc-editor.org/rfc/rfc3825.txt">TXT</a>).</td></tr>
    862      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3925">[RFC3925]</a></td>
    863      1.1  christos <td class="author-text">Littlefield, J., &ldquo;<a href="http://tools.ietf.org/html/rfc3925">Vendor-Identifying Vendor Options for Dynamic Host Configuration Protocol version 4 (DHCPv4)</a>,&rdquo; RFC&nbsp;3925, October&nbsp;2004 (<a href="http://www.rfc-editor.org/rfc/rfc3925.txt">TXT</a>).</td></tr>
    864      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3942">[RFC3942]</a></td>
    865      1.1  christos <td class="author-text">Volz, B., &ldquo;<a href="http://tools.ietf.org/html/rfc3942">Reclassifying Dynamic Host Configuration Protocol version 4 (DHCPv4) Options</a>,&rdquo; RFC&nbsp;3942, November&nbsp;2004 (<a href="http://www.rfc-editor.org/rfc/rfc3942.txt">TXT</a>).</td></tr>
    866      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3993">[RFC3993]</a></td>
    867      1.1  christos <td class="author-text">Johnson, R., Palaniappan, T., and M. Stapp, &ldquo;<a href="http://tools.ietf.org/html/rfc3993">Subscriber-ID Suboption for the Dynamic Host Configuration Protocol (DHCP) Relay Agent Option</a>,&rdquo; RFC&nbsp;3993, March&nbsp;2005 (<a href="http://www.rfc-editor.org/rfc/rfc3993.txt">TXT</a>).</td></tr>
    868      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4014">[RFC4014]</a></td>
    869      1.1  christos <td class="author-text">Droms, R. and J. Schnizlein, &ldquo;<a href="http://tools.ietf.org/html/rfc4014">Remote Authentication Dial-In User Service (RADIUS) Attributes Suboption for the Dynamic Host Configuration Protocol (DHCP) Relay Agent Information Option</a>,&rdquo; RFC&nbsp;4014, February&nbsp;2005 (<a href="http://www.rfc-editor.org/rfc/rfc4014.txt">TXT</a>).</td></tr>
    870      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4030">[RFC4030]</a></td>
    871      1.1  christos <td class="author-text">Stapp, M. and T. Lemon, &ldquo;<a href="http://tools.ietf.org/html/rfc4030">The Authentication Suboption for the Dynamic Host Configuration Protocol (DHCP) Relay Agent Option</a>,&rdquo; RFC&nbsp;4030, March&nbsp;2005 (<a href="http://www.rfc-editor.org/rfc/rfc4030.txt">TXT</a>).</td></tr>
    872      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4039">[RFC4039]</a></td>
    873      1.1  christos <td class="author-text">Park, S., Kim, P., and B. Volz, &ldquo;<a href="http://tools.ietf.org/html/rfc4039">Rapid Commit Option for the Dynamic Host Configuration Protocol version 4 (DHCPv4)</a>,&rdquo; RFC&nbsp;4039, March&nbsp;2005 (<a href="http://www.rfc-editor.org/rfc/rfc4039.txt">TXT</a>).</td></tr>
    874      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4174">[RFC4174]</a></td>
    875      1.1  christos <td class="author-text">Monia, C., Tseng, J., and K. Gibbons, &ldquo;<a href="http://tools.ietf.org/html/rfc4174">The IPv4 Dynamic Host Configuration Protocol (DHCP) Option for the Internet Storage Name Service</a>,&rdquo; RFC&nbsp;4174, September&nbsp;2005 (<a href="http://www.rfc-editor.org/rfc/rfc4174.txt">TXT</a>).</td></tr>
    876      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4243">[RFC4243]</a></td>
    877      1.1  christos <td class="author-text">Stapp, M., Johnson, R., and T. Palaniappan, &ldquo;<a href="http://tools.ietf.org/html/rfc4243">Vendor-Specific Information Suboption for the Dynamic Host Configuration Protocol (DHCP) Relay Agent Option</a>,&rdquo; RFC&nbsp;4243, December&nbsp;2005 (<a href="http://www.rfc-editor.org/rfc/rfc4243.txt">TXT</a>).</td></tr>
    878      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4361">[RFC4361]</a></td>
    879      1.1  christos <td class="author-text">Lemon, T. and B. Sommerfeld, &ldquo;<a href="http://tools.ietf.org/html/rfc4361">Node-specific Client Identifiers for Dynamic Host Configuration Protocol Version Four (DHCPv4)</a>,&rdquo; RFC&nbsp;4361, February&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4361.txt">TXT</a>).</td></tr>
    880      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4388">[RFC4388]</a></td>
    881      1.1  christos <td class="author-text">Woundy, R. and K. Kinnear, &ldquo;<a href="http://tools.ietf.org/html/rfc4388">Dynamic Host Configuration Protocol (DHCP) Leasequery</a>,&rdquo; RFC&nbsp;4388, February&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4388.txt">TXT</a>).</td></tr>
    882      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4390">[RFC4390]</a></td>
    883      1.1  christos <td class="author-text">Kashyap, V., &ldquo;<a href="http://tools.ietf.org/html/rfc4390">Dynamic Host Configuration Protocol (DHCP) over InfiniBand</a>,&rdquo; RFC&nbsp;4390, April&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4390.txt">TXT</a>).</td></tr>
    884      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4436">[RFC4436]</a></td>
    885      1.1  christos <td class="author-text">Aboba, B., Carlson, J., and S. Cheshire, &ldquo;<a href="http://tools.ietf.org/html/rfc4436">Detecting Network Attachment in IPv4 (DNAv4)</a>,&rdquo; RFC&nbsp;4436, March&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4436.txt">TXT</a>).</td></tr>
    886      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4701">[RFC4701]</a></td>
    887      1.1  christos <td class="author-text">Stapp, M., Lemon, T., and A. Gustafsson, &ldquo;<a href="http://tools.ietf.org/html/rfc4701">A DNS Resource Record (RR) for Encoding Dynamic Host Configuration Protocol (DHCP) Information (DHCID RR)</a>,&rdquo; RFC&nbsp;4701, October&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4701.txt">TXT</a>).</td></tr>
    888      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4702">[RFC4702]</a></td>
    889      1.1  christos <td class="author-text">Stapp, M., Volz, B., and Y. Rekhter, &ldquo;<a href="http://tools.ietf.org/html/rfc4702">The Dynamic Host Configuration Protocol (DHCP) Client Fully Qualified Domain Name (FQDN) Option</a>,&rdquo; RFC&nbsp;4702, October&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4702.txt">TXT</a>).</td></tr>
    890      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4703">[RFC4703]</a></td>
    891      1.1  christos <td class="author-text">Stapp, M. and B. Volz, &ldquo;<a href="http://tools.ietf.org/html/rfc4703">Resolution of Fully Qualified Domain Name (FQDN) Conflicts among Dynamic Host Configuration Protocol (DHCP) Clients</a>,&rdquo; RFC&nbsp;4703, October&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4703.txt">TXT</a>).</td></tr>
    892      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5010">[RFC5010]</a></td>
    893      1.1  christos <td class="author-text">Kinnear, K., Normoyle, M., and M. Stapp, &ldquo;<a href="http://tools.ietf.org/html/rfc5010">The Dynamic Host Configuration Protocol Version 4 (DHCPv4) Relay Agent Flags Suboption</a>,&rdquo; RFC&nbsp;5010, September&nbsp;2007 (<a href="http://www.rfc-editor.org/rfc/rfc5010.txt">TXT</a>).</td></tr>
    894      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5071">[RFC5071]</a></td>
    895      1.1  christos <td class="author-text">Hankins, D., &ldquo;<a href="http://tools.ietf.org/html/rfc5071">Dynamic Host Configuration Protocol Options Used by PXELINUX</a>,&rdquo; RFC&nbsp;5071, December&nbsp;2007 (<a href="http://www.rfc-editor.org/rfc/rfc5071.txt">TXT</a>).</td></tr>
    896      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5107">[RFC5107]</a></td>
    897      1.1  christos <td class="author-text">Johnson, R., Kumarasamy, J., Kinnear, K., and M. Stapp, &ldquo;<a href="http://tools.ietf.org/html/rfc5107">DHCP Server Identifier Override Suboption</a>,&rdquo; RFC&nbsp;5107, February&nbsp;2008 (<a href="http://www.rfc-editor.org/rfc/rfc5107.txt">TXT</a>).</td></tr>
    898      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5192">[RFC5192]</a></td>
    899      1.1  christos <td class="author-text">Morand, L., Yegin, A., Kumar, S., and S. Madanapalli, &ldquo;<a href="http://tools.ietf.org/html/rfc5192">DHCP Options for Protocol for Carrying Authentication for Network Access (PANA) Authentication Agents</a>,&rdquo; RFC&nbsp;5192, May&nbsp;2008 (<a href="http://www.rfc-editor.org/rfc/rfc5192.txt">TXT</a>).</td></tr>
    900      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5223">[RFC5223]</a></td>
    901      1.1  christos <td class="author-text">Schulzrinne, H., Polk, J., and H. Tschofenig, &ldquo;<a href="http://tools.ietf.org/html/rfc5223">Discovering Location-to-Service Translation (LoST) Servers Using the Dynamic Host Configuration Protocol (DHCP)</a>,&rdquo; RFC&nbsp;5223, August&nbsp;2008 (<a href="http://www.rfc-editor.org/rfc/rfc5223.txt">TXT</a>).</td></tr>
    902      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5859">[RFC5859]</a></td>
    903      1.1  christos <td class="author-text">Johnson, R., &ldquo;<a href="http://tools.ietf.org/html/rfc5859">TFTP Server Address Option for DHCPv4</a>,&rdquo; RFC&nbsp;5859, June&nbsp;2010 (<a href="http://www.rfc-editor.org/rfc/rfc5859.txt">TXT</a>).</td></tr>
    904      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5969">[RFC5969]</a></td>
    905      1.1  christos <td class="author-text">Townsley, W. and O. Troan, &ldquo;<a href="http://tools.ietf.org/html/rfc5969">IPv6 Rapid Deployment on IPv4 Infrastructures (6rd) -- Protocol Specification</a>,&rdquo; RFC&nbsp;5969, August&nbsp;2010 (<a href="http://www.rfc-editor.org/rfc/rfc5969.txt">TXT</a>).</td></tr>
    906      1.1  christos <tr><td class="author-text" valign="top"><a name="draft-failover">[draft-failover]</a></td>
    907      1.1  christos <td class="author-text">Droms, R., &ldquo;<a href="https://www.isc.org/sw/dhcp/drafts/draft-ietf-dhc-failover-12.txt">DHCP Failover Protocol</a>,&rdquo; March&nbsp;2003.</td></tr>
    908      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-dhc-dhcpv4-relay-encapsulation">[I-D.ietf-dhc-dhcpv4-relay-encapsulation]</a></td>
    909      1.1  christos <td class="author-text">Lemon, T. and H. Deng, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-dhc-dhcpv4-relay-encapsulation-00">Relay Agent Encapsulation for DHCPv4</a>,&rdquo; draft-ietf-dhc-dhcpv4-relay-encapsulation-00 (work in progress), October&nbsp;2010 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-dhc-dhcpv4-relay-encapsulation-00.txt">TXT</a>).</td></tr>
    910      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-dhc-dhcpv4-bulk-leasequery">[I-D.ietf-dhc-dhcpv4-bulk-leasequery]</a></td>
    911      1.1  christos <td class="author-text">Kinnear, K., Volz, B., Russell, N., Stapp, M., Rao, D., Joshi, B., and P. Kurapati, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-dhc-dhcpv4-bulk-leasequery-03">Bulk DHCPv4 Lease Query</a>,&rdquo; draft-ietf-dhc-dhcpv4-bulk-leasequery-03 (work in progress), October&nbsp;2010 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-dhc-dhcpv4-bulk-leasequery-03.txt">TXT</a>).</td></tr>
    912      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-dhc-leasequery-by-remote-id">[I-D.ietf-dhc-leasequery-by-remote-id]</a></td>
    913      1.1  christos <td class="author-text">Kurapati, P. and B. Joshi, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-dhc-leasequery-by-remote-id-09">DHCPv4 lease query by Relay Agent Remote ID</a>,&rdquo; draft-ietf-dhc-leasequery-by-remote-id-09 (work in progress), December&nbsp;2010 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-dhc-leasequery-by-remote-id-09.txt">TXT</a>).</td></tr>
    914      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-dhc-relay-id-suboption">[I-D.ietf-dhc-relay-id-suboption]</a></td>
    915      1.1  christos <td class="author-text">Stapp, M., &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-dhc-relay-id-suboption-07">The DHCPv4 Relay Agent Identifier Suboption</a>,&rdquo; draft-ietf-dhc-relay-id-suboption-07 (work in progress), July&nbsp;2009 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-dhc-relay-id-suboption-07.txt">TXT</a>).</td></tr>
    916      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-mip6-hiopt">[I-D.ietf-mip6-hiopt]</a></td>
    917      1.1  christos <td class="author-text">Jang, H., Yegin, A., Chowdhury, K., and J. Choi, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-mip6-hiopt-17">DHCP Options for Home Information Discovery in MIPv6</a>,&rdquo; draft-ietf-mip6-hiopt-17 (work in progress), May&nbsp;2008 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-mip6-hiopt-17.txt">TXT</a>).</td></tr>
    918      1.1  christos </table>
    919      1.1  christos 
    920      1.1  christos <a name="rfc.references2"></a><br /><hr />
    921      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    922      1.1  christos <h3>7.2.&nbsp;Published Common (DHCPv4/DHCPv6) References</h3>
    923      1.1  christos <table width="99%" border="0">
    924      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4280">[RFC4280]</a></td>
    925      1.1  christos <td class="author-text">Chowdhury, K., Yegani, P., and L. Madour, &ldquo;<a href="http://tools.ietf.org/html/rfc4280">Dynamic Host Configuration Protocol (DHCP) Options for Broadcast and Multicast Control Servers</a>,&rdquo; RFC&nbsp;4280, November&nbsp;2005 (<a href="http://www.rfc-editor.org/rfc/rfc4280.txt">TXT</a>).</td></tr>
    926      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4477">[RFC4477]</a></td>
    927      1.1  christos <td class="author-text">Chown, T., Venaas, S., and C. Strauf, &ldquo;<a href="http://tools.ietf.org/html/rfc4477">Dynamic Host Configuration Protocol (DHCP): IPv4 and IPv6 Dual-Stack Issues</a>,&rdquo; RFC&nbsp;4477, May&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4477.txt">TXT</a>).</td></tr>
    928      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4578">[RFC4578]</a></td>
    929      1.1  christos <td class="author-text">Johnston, M. and S. Venaas, &ldquo;<a href="http://tools.ietf.org/html/rfc4578">Dynamic Host Configuration Protocol (DHCP) Options for the Intel Preboot eXecution Environment (PXE)</a>,&rdquo; RFC&nbsp;4578, November&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4578.txt">TXT</a>).</td></tr>
    930      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4776">[RFC4776]</a></td>
    931      1.1  christos <td class="author-text">Schulzrinne, H., &ldquo;<a href="http://tools.ietf.org/html/rfc4776">Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Option for Civic Addresses Configuration Information</a>,&rdquo; RFC&nbsp;4776, November&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4776.txt">TXT</a>).</td></tr>
    932      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4833">[RFC4833]</a></td>
    933      1.1  christos <td class="author-text">Lear, E. and P. Eggert, &ldquo;<a href="http://tools.ietf.org/html/rfc4833">Timezone Options for DHCP</a>,&rdquo; RFC&nbsp;4833, April&nbsp;2007 (<a href="http://www.rfc-editor.org/rfc/rfc4833.txt">TXT</a>).</td></tr>
    934      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5417">[RFC5417]</a></td>
    935      1.1  christos <td class="author-text">Calhoun, P., &ldquo;<a href="http://tools.ietf.org/html/rfc5417">Control And Provisioning of Wireless Access Points (CAPWAP) Access Controller DHCP Option</a>,&rdquo; RFC&nbsp;5417, March&nbsp;2009 (<a href="http://www.rfc-editor.org/rfc/rfc5417.txt">TXT</a>).</td></tr>
    936      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5678">[RFC5678]</a></td>
    937      1.1  christos <td class="author-text">Bajko, G. and S. Das, &ldquo;<a href="http://tools.ietf.org/html/rfc5678">Dynamic Host Configuration Protocol (DHCPv4 and DHCPv6) Options for IEEE 802.21 Mobility Services (MoS) Discovery</a>,&rdquo; RFC&nbsp;5678, December&nbsp;2009 (<a href="http://www.rfc-editor.org/rfc/rfc5678.txt">TXT</a>).</td></tr>
    938      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5908">[RFC5908]</a></td>
    939      1.1  christos <td class="author-text">Gayraud, R. and B. Lourdelet, &ldquo;<a href="http://tools.ietf.org/html/rfc5908">Network Time Protocol (NTP) Server Option for DHCPv6</a>,&rdquo; RFC&nbsp;5908, June&nbsp;2010 (<a href="http://www.rfc-editor.org/rfc/rfc5908.txt">TXT</a>).</td></tr>
    940      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5970">[RFC5970]</a></td>
    941      1.1  christos <td class="author-text">Huth, T., Freimann, J., Zimmer, V., and D. Thaler, &ldquo;<a href="http://tools.ietf.org/html/rfc5970">DHCPv6 Options for Network Boot</a>,&rdquo; RFC&nbsp;5970, September&nbsp;2010 (<a href="http://www.rfc-editor.org/rfc/rfc5970.txt">TXT</a>).</td></tr>
    942      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5986">[RFC5986]</a></td>
    943      1.1  christos <td class="author-text">Thomson, M. and J. Winterbottom, &ldquo;<a href="http://tools.ietf.org/html/rfc5986">Discovering the Local Location Information Server (LIS)</a>,&rdquo; RFC&nbsp;5986, September&nbsp;2010 (<a href="http://www.rfc-editor.org/rfc/rfc5986.txt">TXT</a>).</td></tr>
    944      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-dhc-vpn-option">[I-D.ietf-dhc-vpn-option]</a></td>
    945      1.1  christos <td class="author-text">Kinnear, K., Johnson, R., and M. Stapp, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-dhc-vpn-option-12">Virtual Subnet Selection Options for DHCPv4 and DHCPv6</a>,&rdquo; draft-ietf-dhc-vpn-option-12 (work in progress), October&nbsp;2010 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-dhc-vpn-option-12.txt">TXT</a>).</td></tr>
    946      1.1  christos </table>
    947      1.1  christos 
    948      1.1  christos <a name="rfc.references3"></a><br /><hr />
    949      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
    950      1.1  christos <h3>7.3.&nbsp;Published DHCPv6 References</h3>
    951      1.1  christos <table width="99%" border="0">
    952      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3315">[RFC3315]</a></td>
    953      1.1  christos <td class="author-text">Droms, R., Bound, J., Volz, B., Lemon, T., Perkins, C., and M. Carney, &ldquo;<a href="http://tools.ietf.org/html/rfc3315">Dynamic Host Configuration Protocol for IPv6 (DHCPv6)</a>,&rdquo; RFC&nbsp;3315, July&nbsp;2003 (<a href="http://www.rfc-editor.org/rfc/rfc3315.txt">TXT</a>).</td></tr>
    954      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3319">[RFC3319]</a></td>
    955      1.1  christos <td class="author-text">Schulzrinne, H. and B. Volz, &ldquo;<a href="http://tools.ietf.org/html/rfc3319">Dynamic Host Configuration Protocol (DHCPv6) Options for Session Initiation Protocol (SIP) Servers</a>,&rdquo; RFC&nbsp;3319, July&nbsp;2003 (<a href="http://www.rfc-editor.org/rfc/rfc3319.txt">TXT</a>).</td></tr>
    956      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3633">[RFC3633]</a></td>
    957      1.1  christos <td class="author-text">Troan, O. and R. Droms, &ldquo;<a href="http://tools.ietf.org/html/rfc3633">IPv6 Prefix Options for Dynamic Host Configuration Protocol (DHCP) version 6</a>,&rdquo; RFC&nbsp;3633, December&nbsp;2003 (<a href="http://www.rfc-editor.org/rfc/rfc3633.txt">TXT</a>).</td></tr>
    958      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3646">[RFC3646]</a></td>
    959      1.1  christos <td class="author-text">Droms, R., &ldquo;<a href="http://tools.ietf.org/html/rfc3646">DNS Configuration options for Dynamic Host Configuration Protocol for IPv6 (DHCPv6)</a>,&rdquo; RFC&nbsp;3646, December&nbsp;2003 (<a href="http://www.rfc-editor.org/rfc/rfc3646.txt">TXT</a>).</td></tr>
    960      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3736">[RFC3736]</a></td>
    961      1.1  christos <td class="author-text">Droms, R., &ldquo;<a href="http://tools.ietf.org/html/rfc3736">Stateless Dynamic Host Configuration Protocol (DHCP) Service for IPv6</a>,&rdquo; RFC&nbsp;3736, April&nbsp;2004 (<a href="http://www.rfc-editor.org/rfc/rfc3736.txt">TXT</a>).</td></tr>
    962      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC3898">[RFC3898]</a></td>
    963      1.1  christos <td class="author-text">Kalusivalingam, V., &ldquo;<a href="http://tools.ietf.org/html/rfc3898">Network Information Service (NIS) Configuration Options for Dynamic Host Configuration Protocol for IPv6 (DHCPv6)</a>,&rdquo; RFC&nbsp;3898, October&nbsp;2004 (<a href="http://www.rfc-editor.org/rfc/rfc3898.txt">TXT</a>).</td></tr>
    964      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4075">[RFC4075]</a></td>
    965      1.1  christos <td class="author-text">Kalusivalingam, V., &ldquo;<a href="http://tools.ietf.org/html/rfc4075">Simple Network Time Protocol (SNTP) Configuration Option for DHCPv6</a>,&rdquo; RFC&nbsp;4075, May&nbsp;2005 (<a href="http://www.rfc-editor.org/rfc/rfc4075.txt">TXT</a>).</td></tr>
    966      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4076">[RFC4076]</a></td>
    967      1.1  christos <td class="author-text">Chown, T., Venaas, S., and A. Vijayabhaskar, &ldquo;<a href="http://tools.ietf.org/html/rfc4076">Renumbering Requirements for Stateless Dynamic Host Configuration Protocol for IPv6 (DHCPv6)</a>,&rdquo; RFC&nbsp;4076, May&nbsp;2005 (<a href="http://www.rfc-editor.org/rfc/rfc4076.txt">TXT</a>).</td></tr>
    968      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4242">[RFC4242]</a></td>
    969      1.1  christos <td class="author-text">Venaas, S., Chown, T., and B. Volz, &ldquo;<a href="http://tools.ietf.org/html/rfc4242">Information Refresh Time Option for Dynamic Host Configuration Protocol for IPv6 (DHCPv6)</a>,&rdquo; RFC&nbsp;4242, November&nbsp;2005 (<a href="http://www.rfc-editor.org/rfc/rfc4242.txt">TXT</a>).</td></tr>
    970      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4580">[RFC4580]</a></td>
    971      1.1  christos <td class="author-text">Volz, B., &ldquo;<a href="http://tools.ietf.org/html/rfc4580">Dynamic Host Configuration Protocol for IPv6 (DHCPv6) Relay Agent Subscriber-ID Option</a>,&rdquo; RFC&nbsp;4580, June&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4580.txt">TXT</a>).</td></tr>
    972      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4649">[RFC4649]</a></td>
    973      1.1  christos <td class="author-text">Volz, B., &ldquo;<a href="http://tools.ietf.org/html/rfc4649">Dynamic Host Configuration Protocol for IPv6 (DHCPv6) Relay Agent Remote-ID Option</a>,&rdquo; RFC&nbsp;4649, August&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4649.txt">TXT</a>).</td></tr>
    974      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4704">[RFC4704]</a></td>
    975      1.1  christos <td class="author-text">Volz, B., &ldquo;<a href="http://tools.ietf.org/html/rfc4704">The Dynamic Host Configuration Protocol for IPv6 (DHCPv6) Client Fully Qualified Domain Name (FQDN) Option</a>,&rdquo; RFC&nbsp;4704, October&nbsp;2006 (<a href="http://www.rfc-editor.org/rfc/rfc4704.txt">TXT</a>).</td></tr>
    976      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC4994">[RFC4994]</a></td>
    977      1.1  christos <td class="author-text">Zeng, S., Volz, B., Kinnear, K., and J. Brzozowski, &ldquo;<a href="http://tools.ietf.org/html/rfc4994">DHCPv6 Relay Agent Echo Request Option</a>,&rdquo; RFC&nbsp;4994, September&nbsp;2007 (<a href="http://www.rfc-editor.org/rfc/rfc4994.txt">TXT</a>).</td></tr>
    978      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5007">[RFC5007]</a></td>
    979      1.1  christos <td class="author-text">Brzozowski, J., Kinnear, K., Volz, B., and S. Zeng, &ldquo;<a href="http://tools.ietf.org/html/rfc5007">DHCPv6 Leasequery</a>,&rdquo; RFC&nbsp;5007, September&nbsp;2007 (<a href="http://www.rfc-editor.org/rfc/rfc5007.txt">TXT</a>).</td></tr>
    980      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5453">[RFC5453]</a></td>
    981      1.1  christos <td class="author-text">Krishnan, S., &ldquo;<a href="http://tools.ietf.org/html/rfc5453">Reserved IPv6 Interface Identifiers</a>,&rdquo; RFC&nbsp;5453, February&nbsp;2009 (<a href="http://www.rfc-editor.org/rfc/rfc5453.txt">TXT</a>).</td></tr>
    982      1.1  christos <tr><td class="author-text" valign="top"><a name="RFC5460">[RFC5460]</a></td>
    983      1.1  christos <td class="author-text">Stapp, M., &ldquo;<a href="http://tools.ietf.org/html/rfc5460">DHCPv6 Bulk Leasequery</a>,&rdquo; RFC&nbsp;5460, February&nbsp;2009 (<a href="http://www.rfc-editor.org/rfc/rfc5460.txt">TXT</a>).</td></tr>
    984      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-mif-dhcpv6-route-option">[I-D.ietf-mif-dhcpv6-route-option]</a></td>
    985      1.1  christos <td class="author-text">Dec, W., Mrugalski, T., Sun, T., and B. Sarikaya, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-mif-dhcpv6-route-option-03">DHCPv6 Route Options</a>,&rdquo; draft-ietf-mif-dhcpv6-route-option-03 (work in progress), September&nbsp;2011 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-mif-dhcpv6-route-option-03.txt">TXT</a>).</td></tr>
    986      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-dhc-dhcpv6-ldra">[I-D.ietf-dhc-dhcpv6-ldra]</a></td>
    987      1.1  christos <td class="author-text">Miles, D., Ooghe, S., Dec, W., Krishnan, S., and A. Kavanagh, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-dhc-dhcpv6-ldra-03">Lightweight DHCPv6 Relay Agent</a>,&rdquo; draft-ietf-dhc-dhcpv6-ldra-03 (work in progress), October&nbsp;2010 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-dhc-dhcpv6-ldra-03.txt">TXT</a>).</td></tr>
    988      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-dhc-dhcpv6-relay-supplied-options">[I-D.ietf-dhc-dhcpv6-relay-supplied-options]</a></td>
    989      1.1  christos <td class="author-text">Lemon, T. and W. Wu, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-dhc-dhcpv6-relay-supplied-options-09">Relay-Supplied DHCP Options</a>,&rdquo; draft-ietf-dhc-dhcpv6-relay-supplied-options-09 (work in progress), September&nbsp;2011 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-dhc-dhcpv6-relay-supplied-options-09.txt">TXT</a>).</td></tr>
    990      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-dhc-pd-exclude">[I-D.ietf-dhc-pd-exclude]</a></td>
    991      1.1  christos <td class="author-text">Korhonen, J., Savolainen, T., Krishnan, S., and O. Troan, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-dhc-pd-exclude-01">Prefix Exclude Option for DHCPv6-based Prefix Delegation</a>,&rdquo; draft-ietf-dhc-pd-exclude-01 (work in progress), January&nbsp;2011 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-dhc-pd-exclude-01.txt">TXT</a>).</td></tr>
    992      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-dhc-secure-dhcpv6">[I-D.ietf-dhc-secure-dhcpv6]</a></td>
    993      1.1  christos <td class="author-text">Jiang, S., &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-dhc-secure-dhcpv6-02">Secure DHCPv6 Using CGAs</a>,&rdquo; draft-ietf-dhc-secure-dhcpv6-02 (work in progress), December&nbsp;2010 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-dhc-secure-dhcpv6-02.txt">TXT</a>).</td></tr>
    994      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-mext-nemo-pd">[I-D.ietf-mext-nemo-pd]</a></td>
    995      1.1  christos <td class="author-text">Droms, R., Thubert, P., Dupont, F., Haddad, W., and C. Bernardos, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-mext-nemo-pd-07">DHCPv6 Prefix Delegation for NEMO</a>,&rdquo; draft-ietf-mext-nemo-pd-07 (work in progress), December&nbsp;2010 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-mext-nemo-pd-07.txt">TXT</a>).</td></tr>
    996      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-dhc-duid-uuid">[I-D.ietf-dhc-duid-uuid]</a></td>
    997      1.1  christos <td class="author-text">Narten, T. and J. Johnson, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-dhc-duid-uuid-03">Definition of the UUID-based DHCPv6 Unique Identifier (DUID-UUID)</a>,&rdquo; draft-ietf-dhc-duid-uuid-03 (work in progress), February&nbsp;2011 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-dhc-duid-uuid-03.txt">TXT</a>).</td></tr>
    998      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-softwire-ds-lite-tunnel-option">[I-D.ietf-softwire-ds-lite-tunnel-option]</a></td>
    999      1.1  christos <td class="author-text">Hankins, D. and T. Mrugalski, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-softwire-ds-lite-tunnel-option-10">Dynamic Host Configuration Protocol for IPv6 (DHCPv6) Option for Dual- Stack Lite</a>,&rdquo; draft-ietf-softwire-ds-lite-tunnel-option-10 (work in progress), March&nbsp;2011 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-softwire-ds-lite-tunnel-option-10.txt">TXT</a>).</td></tr>
   1000      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-mif-dns-server-selection">[I-D.ietf-mif-dns-server-selection]</a></td>
   1001      1.1  christos <td class="author-text">Savolainen, T. and J. Kato, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-mif-dns-server-selection-01">Improved DNS Server Selection for Multi-Homed Nodes</a>,&rdquo; draft-ietf-mif-dns-server-selection-01 (work in progress), March&nbsp;2011 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-mif-dns-server-selection-01.txt">TXT</a>).</td></tr>
   1002      1.1  christos <tr><td class="author-text" valign="top"><a name="I-D.ietf-geopriv-rfc3825bis">[I-D.ietf-geopriv-rfc3825bis]</a></td>
   1003      1.1  christos <td class="author-text">Polk, J., Linsner, M., Thomson, M., and B. Aboba, &ldquo;<a href="http://tools.ietf.org/html/draft-ietf-geopriv-rfc3825bis-17">Dynamic Host Configuration Protocol Options for Coordinate-based Location Configuration Information</a>,&rdquo; draft-ietf-geopriv-rfc3825bis-17 (work in progress), February&nbsp;2011 (<a href="http://www.ietf.org/internet-drafts/draft-ietf-geopriv-rfc3825bis-17.txt">TXT</a>).</td></tr>
   1004      1.1  christos <tr><td class="author-text" valign="top"><a name="draft-addr-params">[draft-addr-params]</a></td>
   1005      1.1  christos <td class="author-text">Mrugalski, T., &ldquo;<a href="http://klub.com.pl/dhcpv6/doc/draft-mrugalski-addropts-XX-2007-04-17.txt">Address Parameters Option for DHCPv6</a>,&rdquo; April&nbsp;2007.</td></tr>
   1006      1.1  christos </table>
   1007      1.1  christos 
   1008      1.1  christos <a name="rfc.authors"></a><br /><hr />
   1009      1.1  christos <table summary="layout" cellpadding="0" cellspacing="2" class="TOCbug" align="right"><tr><td class="TOCbug"><a href="#toc">&nbsp;TOC&nbsp;</a></td></tr></table>
   1010      1.1  christos <h3>Authors' Addresses</h3>
   1011      1.1  christos <table width="99%" border="0" cellpadding="0" cellspacing="0">
   1012      1.1  christos <tr><td class="author-text">&nbsp;</td>
   1013      1.1  christos <td class="author-text">David W. Hankins</td></tr>
   1014      1.1  christos <tr><td class="author-text">&nbsp;</td>
   1015      1.1  christos <td class="author-text">Internet Systems Consortium,
   1016      1.1  christos 				 Inc.</td></tr>
   1017      1.1  christos <tr><td class="author-text">&nbsp;</td>
   1018  1.1.1.2  christos <td class="author-text">PO Box 360</td></tr>
   1019      1.1  christos <tr><td class="author-text">&nbsp;</td>
   1020  1.1.1.2  christos <td class="author-text">Newmarket, NH 03857 USA</td></tr>
   1021      1.1  christos <tr cellpadding="3"><td>&nbsp;</td><td>&nbsp;</td></tr>
   1022      1.1  christos <tr><td class="author-text">&nbsp;</td>
   1023      1.1  christos <td class="author-text">Tomasz Mrugalski</td></tr>
   1024      1.1  christos <tr><td class="author-text">&nbsp;</td>
   1025      1.1  christos <td class="author-text">Internet Systems Consortium,
   1026      1.1  christos 				 Inc.</td></tr>
   1027      1.1  christos <tr><td class="author-text">&nbsp;</td>
   1028  1.1.1.2  christos <td class="author-text">PO Box 360</td></tr>
   1029      1.1  christos <tr><td class="author-text">&nbsp;</td>
   1030  1.1.1.2  christos <td class="author-text">Newmarket, NH 03857 USA</td></tr>
   1031      1.1  christos <tr><td class="author" align="right">Phone:&nbsp;</td>
   1032      1.1  christos <td class="author-text">+1 650 423 1345</td></tr>
   1033      1.1  christos <tr><td class="author" align="right">Email:&nbsp;</td>
   1034      1.1  christos <td class="author-text"><a href="mailto:Tomasz_Mrugalski (a] isc.org">Tomasz_Mrugalski (a] isc.org</a></td></tr>
   1035      1.1  christos </table>
   1036      1.1  christos </body></html>
   1037