iptables_init.sh

很小的linux下的upnp服务器端代码适合嵌入式系统

#! /bin/sh
# $Id: iptables_init.sh,v 1.3 2006/11/23 12:32:57 nanard Exp $
IPTABLES=iptables

#change this parameters :
EXTIF=eth0
EXTIP="`LC_ALL=C /sbin/ifconfig $EXTIF | grep 'inet addr' | awk '{print $2}' | sed -e 's/.*://'`"
echo "External IP = $EXTIP"

#adding the MINIUPNPD chain for nat
$IPTABLES -t nat -N MINIUPNPD
#adding the rule to MINIUPNPD
$IPTABLES -t nat -A PREROUTING -d $EXTIP -i $EXTIF -j MINIUPNPD

#adding the MINIUPNPD chain for filter
$IPTABLES -t filter -N MINIUPNPD
#adding the rule to MINIUPNPD
$IPTABLES -t filter -A FORWARD -i $EXTIF -o ! $EXTIF -j MINIUPNPD