for foo in all default; do
echo 1 >/proc/sys/net/ipv4/conf/$foo/rp_filter
echo 1 >/proc/sys/net/ipv4/conf/$foo/proxy_arp
done
for foo in all default; do
echo 1 >/proc/sys/net/ipv4/conf/$foo/rp_filter
echo 1 >/proc/sys/net/ipv4/conf/$foo/proxy_arp
done