Linux VLAN Trunking

From ITCwiki
Revision as of 02:24, 7 May 2010 by Kaschner (talk | contribs)
Jump to navigation Jump to search

Basic VLAN Trunking in Debian based Linux.

Goals of Lab

  • Enable 802.1Q Tagging
  • Create Virtual Interfaces

Scenario

Linuxproject.jpg

Step 1

The first thing you'll want to do is install the VLAN package using aptitude.

aptitude install vlan
Installvlan.jpg

Note: if aptitude can't find the package, use the command "aptitude update" before trying to install the package.

Step 2

Load the 802.1Q module into the kernel

sudo modprobe 8021q

Then verify the module has been loaded into the kernel

lsmod | grep 8021q

The output on your screen should look similar:

Modprobe.jpg

Step 3

Use vconfig to add virtual interfaces / VLANS

vconfig add eth0 10
vconfig add eth0 20
vconfig add eth0 30
vconfig add eth0 40
Vconfig.jpg

Step 4

Configure IP Addresses on the virtual interfaces.

ifconfig etho.10 10.0.1.2 netmask 255.255.255.0
ifconfig etho.20 10.0.2.2 netmask 255.255.255.0
ifconfig etho.30 10.0.3.2 netmask 255.255.255.0
ifconfig etho.40 10.0.4.2 netmask 255.255.255.0
Configvlanip.jpg

Step 5

Configure the default gateway for each virtual interface / VLAN

route add -net 10.0.1.0 netmask 255.255.255.0 gw 10.0.1.1
route add -net 10.0.2.0 netmask 255.255.255.0 gw 10.0.2.1
route add -net 10.0.3.0 netmask 255.255.255.0 gw 10.0.3.1
route add -net 10.0.4.0 netmask 255.255.255.0 gw 10.0.4.1
Defaultroute.jpg
The server should now be trunking VLANS 10,20,30, and 40