diff -urN miniupnpd.orig/linux/iptables_init.sh miniupnpd/linux/iptables_init.sh
--- miniupnpd.orig/linux/iptables_init.sh	2006-11-23 07:56:34.000000000 -0500
+++ miniupnpd/linux/iptables_init.sh	2006-11-24 18:57:43.000000000 -0500
@@ -2,8 +2,7 @@
 # $Id: iptables_init.sh,v 1.3 2006/11/23 12:32:57 nanard Exp $
 IPTABLES=iptables
 
-#change this parameters :
-EXTIF=eth0
+EXTIF=$(uci get network.wan.ifname)
 EXTIP="`LC_ALL=C /sbin/ifconfig $EXTIF | grep 'inet addr' | awk '{print $2}' | sed -e 's/.*://'`"
 echo "External IP = $EXTIP"
 
diff -urN miniupnpd.orig/linux/iptables_removeall.sh miniupnpd/linux/iptables_removeall.sh
--- miniupnpd.orig/linux/iptables_removeall.sh	2006-11-23 07:56:34.000000000 -0500
+++ miniupnpd/linux/iptables_removeall.sh	2006-11-24 19:00:47.000000000 -0500
@@ -2,8 +2,7 @@
 # $Id: iptables_removeall.sh,v 1.3 2006/11/23 12:32:57 nanard Exp $
 IPTABLES=iptables
 
-#change this parameters :
-EXTIF=eth0
+EXTIF=$(uci get network.wan.ifname)
 EXTIP="`LC_ALL=C /sbin/ifconfig $EXTIF | grep 'inet addr' | awk '{print $2}' | sed -e 's/.*://'`"
 
 #removing the MINIUPNPD chain for nat