HowTo: Configure Linux Virtual Local Area Network (VLAN)

How do I make above VLAN configuration permanent on a Debian or Ubuntu based system?

Edit the /etc/network/interfaces file, enter:
$ nano /etc/network/interfaces
Update configuration as follows:

## vlan for eth0 with ID - 303 on a Debian/Ubuntu Linux##
auto eth0.303
iface eth0.303 inet static
    address 10.0.12.1
        netmask 255.255.255.0
        network 10.0.12.0
        broadcast 10.0.12.255
        gateway 10.0.12.2
        # dns-* options are implemented by the resolvconf package, if installed
        dns-nameservers 10.0.12.2

vlan-raw-device eth0

How do I make above VLAN configuration permanent on a Debian or Ubuntu based system?

Edit the /etc/network/interfaces file, enter:
$ sudo vi /etc/network/interfaces
Update configuration as follows:
## vlan for eth0 with ID - 5 on a Debian/Ubuntu Linux##
auto eth0.5
iface eth0.5 inet static
    address 192.168.1.200
    netmask 255.255.255.0
    vlan-raw-device eth0
 

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