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| author | Florian Fainelli <florian@openwrt.org> | 2007-11-05 14:19:16 +0000 |
|---|---|---|
| committer | Florian Fainelli <florian@openwrt.org> | 2007-11-05 14:19:16 +0000 |
| commit | 9d7192e5fa1cdf91e6cd6fb127b5a2c4057531ba (patch) | |
| tree | ee10bbaddfe7b2a348686026c3af758d7c1c1a82 | |
| parent | 547984d91dfc1eb2e13ea941d67e4f181604702d (diff) | |
| download | upstream-9d7192e5fa1cdf91e6cd6fb127b5a2c4057531ba.tar.gz upstream-9d7192e5fa1cdf91e6cd6fb127b5a2c4057531ba.tar.bz2 upstream-9d7192e5fa1cdf91e6cd6fb127b5a2c4057531ba.zip | |
Add a boolean to allow NAT from LAN or not, default to nat LAN (#2535)
SVN-Revision: 9503
| -rwxr-xr-x | package/iptables/files/firewall.init | 17 |
1 files changed, 12 insertions, 5 deletions
diff --git a/package/iptables/files/firewall.init b/package/iptables/files/firewall.init index e1013fb8e7..204310af26 100755 --- a/package/iptables/files/firewall.init +++ b/package/iptables/files/firewall.init @@ -11,9 +11,13 @@ 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) + config_get_bool NAT_LAN lan nat 1 + if [ $NAT_LAN -ne 0 ] + then + config_get LAN_MASK lan netmask + config_get LAN_IP lan ipaddr + LAN_NET=$(/bin/ipcalc.sh $LAN_IP $LAN_MASK | grep NETWORK | cut -d= -f2) + fi ## CLEAR TABLES for T in filter nat; do @@ -108,8 +112,11 @@ start() { iptables -t nat -A PREROUTING -j prerouting_rule [ -z "$WAN" ] || iptables -t nat -A PREROUTING -i "$WAN" -j prerouting_wan iptables -t nat -A POSTROUTING -j postrouting_rule - ### Only LAN - [ -z "$WAN" ] || iptables -t nat -A POSTROUTING --src $LAN_NET/$LAN_MASK -o $WAN -j MASQUERADE + ### Only LAN, unless told not to + if [ $NAT_LAN -ne 0 ] + then + [ -z "$WAN" ] || iptables -t nat -A POSTROUTING --src $LAN_NET/$LAN_MASK -o $WAN -j MASQUERADE + fi iptables -t nat -A NEW -m limit --limit 50 --limit-burst 100 -j RETURN && \ iptables -t nat -A NEW -j DROP |