root@probe1:~# ifdown eth1 && ifup eth1 ifdown: interface eth1 not configured RTNETLINK answers: File exists Failed to bring up eth1. # The loopback network interface auto lo iface lo inet loopback # The primary network interface auto eth0 iface eth0 inet static address 10.10.0.247 netmask 255.255.255.0 network 10.10.0.0 broadcast 10.10.0.255 gateway 10.10.0.254 dns-nameservers 10.10.0.77 10.10.0.21 auto eth1 iface eth1 inet static address 172.30.137.15 netmask 255.255.255.0 network 172.30.137.0 broadcast 172.30.137.255 # ADD STATIC ROUTES HERE up route add -net 172.30.101.96/30 gw 172.30.137.1 dev eth1 up route add -net 172.30.207.96/30 gw 172.30.137.1 dev eth1 up route add -net 172.30.205.96/30 gw 172.30.137.1 dev eth1 #THE ROUTE IN QUESTION up route add -net 192.168.1.0/24 gw 172.30.137.1 dev eth1 #BEFORE ROUTE THAT IS NOT WORKING ANYMORE #Due to security reasons we should keep a single host route #up route add -net 192.168.1.8/32 gw 172.30.137.1 dev eth1