xref: /titanic_44/usr/src/cmd/ipf/examples/example.7 (revision 7c478bd95313f5f23a4c958a745db2134aa03244) 
1# block all ICMP packets.
2#
3block in proto icmp all
4#
5# allow in ICMP echos and echo-replies.
6#
7pass in on le1 proto icmp from any to any icmp-type echo
8pass in on le1 proto icmp from any to any icmp-type echorep
9#
10# block all ICMP destination unreachable packets which are port-unreachables
11#
12block in on le1 proto icmp from any to any icmp-type unreach code 3
13