--- /dev/null
+### -*-sh-*-
+###
+### Firewall configuration for mango
+###
+### (c) 2008 Mark Wooding
+###
+
+###----- Licensing notice ---------------------------------------------------
+###
+### This program is free software; you can redistribute it and/or modify
+### it under the terms of the GNU General Public License as published by
+### the Free Software Foundation; either version 2 of the License, or
+### (at your option) any later version.
+###
+### This program is distributed in the hope that it will be useful,
+### but WITHOUT ANY WARRANTY; without even the implied warranty of
+### MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+### GNU General Public License for more details.
+###
+### You should have received a copy of the GNU General Public License
+### along with this program; if not, write to the Free Software Foundation,
+### Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+###--------------------------------------------------------------------------
+### mango-specific rules.
+
+m4_divert(86)m4_dnl
+## Externally visible services.
+allowservices inbound tcp \
+ ssh
+allowservices inbound udp \
+ tripe
+
+## Other interesting things.
+dnsresolver inbound
+
+## Trust the surrounding environment.
+run iptables -A INPUT -j ACCEPT -s 10.165.27.0/24
+
+## NAT for remote administration.
+for i in PREROUTING OUTPUT POSTROUTING; do
+ run iptables -t nat -P $i ACCEPT 2>/dev/null || :
+ run iptables -t nat -F $i 2>/dev/null || :
+done
+run iptables -t nat -F
+run iptables -t nat -X
+
+run iptables -t nat -A POSTROUTING -j SNAT --to-source 10.165.27.3 \
+ -o eth0 -s 172.29.198.0/23
+
+m4_divert(-1)
+###----- That's all, folks --------------------------------------------------