M.I.T = Multimedia IT dept.

** Install the vlan package
# sudo apt-get install vlan

** VLAN configuration
Edit your /etc/network/interfaces:
# VLAN 149
auto vlan149
iface vlan149 inet static
address 192.168.149.8
netmask 255.255.255.0
network 192.168.149.0
broadcast 192.168.149.255
mtu 1500
vlan_raw_device eth0

** Restart your network
# sudo /etc/init.d/networking restart

REFERENCE: VLAN configuration on Ubuntu (Debian)
http://www.mysidenotes.com/2007/08/17/vlan-configuration-on-ubuntu-debian/