122514Sdarrenr# block all ICMP packets. 222514Sdarrenr# 322514Sdarrenrblock in proto icmp all 422514Sdarrenr# 522514Sdarrenr# allow in ICMP echos and echo-replies. 622514Sdarrenr# 722514Sdarrenrpass in on le1 proto icmp from any to any icmp-type echo 822514Sdarrenrpass in on le1 proto icmp from any to any icmp-type echorep 922514Sdarrenr# 1022514Sdarrenr# block all ICMP destination unreachable packets which are port-unreachables 1122514Sdarrenr# 1222514Sdarrenrblock in on le1 proto icmp from any to any icmp-type unreach code 3 13