Linux - IP and GW
How to: set IP and GW from command line in Linux.
Note! The mask and the IP here are just examples.
ip addr add 123.123.123.123/24 dev vmbr1
ip route add default via 123.123.123.1
or older Debians
ifconfig vmbr1 123.123.123.123 netmask 255.255.255.0
route add default gw 123.123.123.1