xref: /titanic_44/usr/src/cmd/ipf/examples/example.8 (revision 3c112a2b34403220c06c3e2fcac403358cfba168)
1#
2# block all incoming TCP connections but send back a TCP-RST for ones to
3# the ident port
4#
5block in proto tcp from any to any flags S/SA
6block return-rst in quick proto tcp from any to any port = 113 flags S/SA
7#
8# block all inbound UDP packets and send back an ICMP error.
9#
10block return-icmp in proto udp from any to any
11