musi być vlan
  tygrys04
  11: vlan237@eth1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
  noqueue state UP
       link/ether 90:e2:ba:4f:3c:5d brd ff:ff:ff:ff:ff:ff
       inet 192.192.192.200/24 brd 192.192.192.255 scope global vlan237
          valid_lft forever preferred_lft forever