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authorflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2007-10-29 11:00:33 +0000
committerflorian <florian@3c298f89-4303-0410-b956-a3cf2f4a3e73>2007-10-29 11:00:33 +0000
commitde87d871fffa3564e7c205185719bbb68f4deb3f (patch)
treedef9696bbee08c9826e2f4eabf6f2842836c1775 /package/iptables/files
parent6880ed0d32b044df4e84c1a25e4293cf01e137aa (diff)
Only masquerade LAN, other settings need manual tweaking
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@9461 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'package/iptables/files')
-rwxr-xr-xpackage/iptables/files/firewall.init9
1 files changed, 5 insertions, 4 deletions
diff --git a/package/iptables/files/firewall.init b/package/iptables/files/firewall.init
index 9d8a405ab..e1013fb8e 100755
--- a/package/iptables/files/firewall.init
+++ b/package/iptables/files/firewall.init
@@ -11,6 +11,9 @@ start() {
config_get WAN wan ifname
config_get WANDEV wan device
config_get LAN lan ifname
+ config_get LAN_MASK lan netmask
+ config_get LAN_IP lan ipaddr
+ LAN_NET=$(/bin/ipcalc.sh $LAN_IP $LAN_MASK | grep NETWORK | cut -d= -f2)
## CLEAR TABLES
for T in filter nat; do
@@ -105,10 +108,8 @@ start() {
iptables -t nat -A PREROUTING -j prerouting_rule
[ -z "$WAN" ] || iptables -t nat -A PREROUTING -i "$WAN" -j prerouting_wan
iptables -t nat -A POSTROUTING -j postrouting_rule
- ### Only RFC1918 addresses
- [ -z "$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 $WAN -j MASQUERADE
+ ### Only LAN
+ [ -z "$WAN" ] || iptables -t nat -A POSTROUTING --src $LAN_NET/$LAN_MASK -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