Несколько ip адресов на интерфейсе

# vi /etc/network/interfaces 

auto lo
iface lo inet loopback

allow-hotplug eth0
auto eth0
iface eth0 inet static
        address 192.168.1.10
        netmask 255.255.255.0
        network 192.168.1.0
        broadcast 192.168.1.255
        gateway 192.168.1.1
        dns-nameservers 192.168.1.1

allow-hotplug eth0:1
auto eth0:1
iface eth0:1 inet static
        address 192.168.2.10
        netmask 255.255.255.0
        network 192.168.2.0
        broadcast 192.168.2.255
        gateway 192.168.2.1
        dns-nameservers 192.168.2.1

...

allow-hotplug eth0:x
auto eth0:x
iface eth0:x inet static
        address 192.168.x.10
        netmask 255.255.255.0
        network 192.168.x.0
        broadcast 192.168.2.255
        gateway 192.168.x.1
        dns-nameservers 192.168.x.1