#!/bin/sh

cat << EOF

===================================
Interfaces with non-zero accept_ra:
===================================

EOF

ra_interfaces=""
for sysctl_prefix in /proc/sys/net/ipv6/conf/*; do
	conffile="$sysctl_prefix/accept_ra"
	interface=$(basename "$sysctl_prefix")
	accept_ra=$(cat "$conffile")
	
	if echo "$interface" | grep -q "one\|vlan"; then
		if [ "$accept_ra" != "0" ]; then
			echo "	$interface"
			ra_interfaces="$ra_interfaces $interface"
		fi
	fi
done


cat << EOF

===================================
You might want to run the following
commands:
===================================

EOF

for interface in $ra_interfaces; do
	echo "echo 0 > /proc/sys/net/ipv6/conf/$interface/accept_ra"
done

if [ $(cat /proc/sys/net/ipv6/conf/default/accept_ra) != "0" ]; then
	cat <<- EOF
	
	/!\ accept_ra is enabled on newly created interfaces /!\\
	/!\ accept_ra is enabled on newly created interfaces /!\\
	/!\ accept_ra is enabled on newly created interfaces /!\\
	
	EOF
fi