07/23: Linux > add static route
Howto add permanent static routes in Ubuntu -- Ubuntu Geek
/etc/network/interfaces
up route add -net 172.20.11.0/16 gw 172.20.10.254 dev eth1
/etc/network/interfaces
up route add -net 172.20.11.0/16 gw 172.20.10.254 dev eth1