File: ip-if-up

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#!/bin/sh
# This should probably go into ifupdown
# But usually only those with lots of interfaces (vlans) need these
if [ -d /proc/sys/net/ipv4/conf/$IFACE ]
then
	if [ -n "$IF_IP_PROXY_ARP" ] && [ "$IF_IP_PROXY_ARP" -eq "1" ]
	then
		echo 1 > /proc/sys/net/ipv4/conf/$IFACE/proxy_arp
	else
		echo 0 > /proc/sys/net/ipv4/conf/$IFACE/proxy_arp
	fi
	if [ -n "$IF_IP_RP_FILTER" ] && [ "$IF_IP_RP_FILTER" -eq "0" ]
	then
		echo 0 > /proc/sys/net/ipv4/conf/$IFACE/rp_filter
	else
		echo 1 > /proc/sys/net/ipv4/conf/$IFACE/rp_filter
	fi
fi