asked on

Tunnel L2 VLANs Through L3

Hello,

I have a question about tunneling layer2 over layer3. I have an enterprise network where I have multiple sites connected via Layer 3 network. We have two old networks which both reside on VLAN 1 and are separated by firewall. We need to move some of the old equipments from the old network to the new network without changing their IPs on the initial phase. Hence, will need to tunnel the old vlans across a L3 network.

Does anyone know how i can go about this?

Thanks

noci

This might be a possibility VDE: http://vde.sourceforge.net/

On a linux system bridge a real ethernet adapter with a VDE one
And route vde to another VDE system... with the same

You would need one vde "patch cable" for each vlan.

Seni

ASKER

Hi Noci,

This solution is to far fetched and the requirements are also complex.

I wonder why i can't seem to find a guide on L2TPv3

noci

Support for that is still marked experimental in a 2.6.36 kernel.
I haven't lookup that route for work in upper layer.

Rick_O_Shay

GRE tunneling could be used if it is supported by your routers but it generally isn't an easy thing to configure and manage either.

Seni

ASKER

Hi Rick,

I'm experienced with Layer 3 tunnels but how do you do configure a Layer 2 GRE tunnel?

SOLUTION

noci

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Rick_O_Shay

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Qlemo

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