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Only masquerade non routable addresses (#2535)

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9460 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
Florian Fainelli 2007-10-29 10:31:16 +00:00
parent 1aaf14613a
commit f57bf774e8
1 changed files with 4 additions and 1 deletions
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package/iptables/files/firewall.init
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@ -105,7 +105,10 @@ start() {
iptables -t nat -A PREROUTING -j prerouting_rule
[ -z "$WAN" ] || iptables -t nat -A PREROUTING -i "$WAN" -j prerouting_wan
iptables -t nat -A POSTROUTING -j postrouting_rule
[ -z "$WAN" ] || iptables -t nat -A POSTROUTING -o $WAN -j MASQUERADE
### Only RFC1918 addresses
[ -z "$WAN" ] || iptables -t nat -A POSTROUTING --src 192.168.0.0/16 -o $WAN -j MASQUERADE
[ -z "$WAN" ] || iptables -t nat -A POSTROUTING --src 172.16.0.0/12 -o $WAN -j MASQUERADE
[ -z "$WAN" ] || iptables -t nat -A POSTROUTING --src 10.0.0.0/8 -o $WAN -j MASQUERADE
iptables -t nat -A NEW -m limit --limit 50 --limit-burst 100 -j RETURN && \
iptables -t nat -A NEW -j DROP