i21 revision 1.3
1pass in from port = 10101
2pass out from any to port != 22
3block in from port 20:21
4block out from any to port 10 <> 100
5pass out from any to port = (3,5,7,9)
6block in from port = (20,25)
7pass in from any port = (11:12, 21:22) to any port = (1:2, 4:5, 8:9)
8