Virtual interface in Debian, Ubuntu Linux

I had to configure a virtual interface on the system (not Alias), and there is practically no information on the Internet, so I will publish a small instruction.

The work was carried out on the Debian Squeeze operating system, but it is also suitable for Ubuntu.

Let's go.

We are going to create a virtual interface virt0.

You need to install the following package for Debian:

aptitude install uml-utilities

Now add to the network configuration file located at the address /etc/network/interfaces:

auto virt0
        iface virt0 inet static
        address 192.168.1.1
        netmask 255.255.255.0
        tunctl_user uml-net

Then we simply overload the network with a command:

/etc/init.d/networking restart

Checking the team. ifconfig virt0:
 

ifconfig virt0
virt0     Link encap:Ethernet  HWaddr cd:15:c6:37:51:18
          inet addr:192.168.1.1  Bcast:192.168.10.255  Mask:255.255.255.0
          inet6 addr: fe71::cz15:c9vv:gd59:8019/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:6 overruns:0 carrier:0
          collisions:0 txqueuelen:500
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)

Virtual interface added. Task accomplished.