Linux VLAN Trunking: Difference between revisions

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=Basic VLAN Trunking in Debian based Linux.=
=Basic VLAN Trunking for Linux.=
==Goal of Lab==
;Goals<nowiki>:</nowiki>
*Create sub-interfaces with VLAN tagging enabled
*Create sub-interfaces with VLAN tagging enabled


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==Step 2==
==Step 2==
Load the 802.1Q module into the kernel
Load the 802.1Q module into the kernel
:sudo modprobe 8021q
:modprobe 8021q
Then verify the module has been loaded into the kernel
Then verify the module has been loaded into the kernel
:lsmod | grep 8021q
:lsmod | grep 8021q
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:[[File:Vconfig.jpg|middle]]
:[[File:Vconfig.jpg|middle]]


:VLAN's 10, 20, 30, and 40 are now created, labeled as eth0.10, eth0.20, eth0.30, eth0.40
:VLAN's 10, 20, 30, and 40 are now created (as sub-interfaces), labeled as eth0.10, eth0.20, eth0.30, eth0.40


==Step 4==
==Step 4==
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:[[File:Configvlanip.jpg|middle]]
:[[File:Configvlanip.jpg|middle]]
:<nowiki>*</nowiki>Verify the VLANS / sub-interfaces were added and up by running the ''ifconfig'' command<nowiki>*</nowiki>


==Step 5==
==Step 5==
Configure the default gateway for each sub-interface / VLAN
Configure the default gateway (add a route) for each VLAN / sub-interface


:route add -net "''ip address''" netmask "''subnet mask''" gw "''default gateway''"
:route add -net "''network address''" netmask "''subnet mask''" gw "''default gateway''"


:[[File:Defaultroute.jpg|middle]]
:[[File:Defaultroute.jpg|middle]]


;The server should now be trunking VLANS 10,20,30, and 40 on eth0
;The server should now be trunking VLANS 10,20,30, and 40 over eth0

Latest revision as of 15:59, 11 May 2010

Basic VLAN Trunking for Linux.

Goals:
  • Create sub-interfaces with VLAN tagging enabled

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

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 VLANS

vconfig add "interface" "VLAN"
Vconfig.jpg
VLAN's 10, 20, 30, and 40 are now created (as sub-interfaces), labeled as eth0.10, eth0.20, eth0.30, eth0.40

Step 4

Configure IP Addresses on the VLANS / sub-interfaces.

ifconfig "interface.VLAN" "ip address" netmask "subnet mask"
Configvlanip.jpg


*Verify the VLANS / sub-interfaces were added and up by running the ifconfig command*

Step 5

Configure the default gateway (add a route) for each VLAN / sub-interface

route add -net "network address" netmask "subnet mask" gw "default gateway"
Defaultroute.jpg
The server should now be trunking VLANS 10,20,30, and 40 over eth0