1*bc4097aaSchristos# $NetBSD: example.8,v 1.1.1.1 2012/03/23 21:20:15 christos Exp $ 2*bc4097aaSchristos# 3*bc4097aaSchristos# block all incoming TCP connections but send back a TCP-RST for ones to 4*bc4097aaSchristos# the ident port 5*bc4097aaSchristos# 6*bc4097aaSchristosblock in proto tcp from any to any flags S/SA 7*bc4097aaSchristosblock return-rst in quick proto tcp from any to any port = 113 flags S/SA 8*bc4097aaSchristos# 9*bc4097aaSchristos# block all inbound UDP packets and send back an ICMP error. 10*bc4097aaSchristos# 11*bc4097aaSchristosblock return-icmp in proto udp from any to any 12