NetBSD-5.0.2/dist/ipf/rules/example.8

Compare this file to the similar file:
Show the results in this format: 

#	$NetBSD: example.8,v 1.1 1999/12/11 22:24:12 veego Exp $
#
# block all incoming TCP connections but send back a TCP-RST for ones to
# the ident port
#
block in proto tcp from any to any flags S/SA
block return-rst in quick proto tcp from any to any port = 113 flags S/SA
#
# block all inbound UDP packets and send back an ICMP error.
#
block return-icmp in proto udp from any to any