rfc1918

sharewall is very good

#
# Shorewall version 4 - Rfc1918 File
#
###############################################################################
#SUBNETS		TARGET
172.16.0.0/12		logdrop		# RFC 1918
192.168.0.0/16		logdrop		# RFC 1918
10.0.0.0/8		logdrop		# RFC 1918
#LAST LINE -- ADD YOUR ENTRIES BEFORE THIS ONE -- DO NOT REMOVE