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authorFelix Fietkau <nbd@openwrt.org>2005-07-17 22:52:59 +0000
committerFelix Fietkau <nbd@openwrt.org>2005-07-17 22:52:59 +0000
commit8cf55878a814d1a6708817adce2819373ae3883e (patch)
tree56a8d56d6b30807c4241db07dd6ac9263eedd4e6 /openwrt/package/base-files/default/etc/firewall.user
parenta9a51421ce9d685576836537b2776be6c788785f (diff)
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move target/default/target_skeleton into package/base-files, put all the default files in ipkg packages, cleanup some junk in toolchain/, toolchain/ no longer changes build_mipsel/root
SVN-Revision: 1494
Diffstat (limited to 'openwrt/package/base-files/default/etc/firewall.user')
-rwxr-xr-xopenwrt/package/base-files/default/etc/firewall.user27
1 files changed, 27 insertions, 0 deletions
diff --git a/openwrt/package/base-files/default/etc/firewall.user b/openwrt/package/base-files/default/etc/firewall.user
new file mode 100755
index 0000000..1781bd4
--- /dev/null
+++ b/openwrt/package/base-files/default/etc/firewall.user
@@ -0,0 +1,27 @@
+#!/bin/sh
+. /etc/functions.sh
+
+WAN=$(nvram get wan_ifname)
+LAN=$(nvram get lan_ifname)
+
+iptables -F input_rule
+iptables -F output_rule
+iptables -F forwarding_rule
+iptables -t nat -F prerouting_rule
+iptables -t nat -F postrouting_rule
+
+### BIG FAT DISCLAIMER
+### The "-i $WAN" literally means packets that came in over the $WAN interface;
+### this WILL NOT MATCH packets sent from the LAN to the WAN address.
+
+### Allow SSH from WAN
+# iptables -t nat -A prerouting_rule -i $WAN -p tcp --dport 22 -j ACCEPT
+# iptables -A input_rule -i $WAN -p tcp --dport 22 -j ACCEPT
+
+### Port forwarding
+# iptables -t nat -A prerouting_rule -i $WAN -p tcp --dport 22 -j DNAT --to 192.168.1.2
+# iptables -A forwarding_rule -i $WAN -p tcp --dport 22 -d 192.168.1.2 -j ACCEPT
+
+### DMZ (should be placed after port forwarding / accept rules)
+# iptables -t nat -A prerouting_rule -i $WAN -j DNAT --to 192.168.1.2
+# iptables -A forwarding_rule -i $WAN -d 192.168.1.2 -j ACCEPT