[c-nsp] L2TPv3 and VLANs

[Paul Stewart]

How did you deal with MTU issues from l2tpv3?  In our testing we would see
packets drop instead of fragmenting where they should... I've been meaning
to followup on this as we have some great l2tpv3 deployments waiting in the
wings...

Paul


-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Ge Moua
Sent: Thursday, June 18, 2009 10:44 AM
To: Ziv Leyes
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] L2TPv3 and VLANs


 > How do I make this happen on the HQ router?

Each l2tp tunnel will have its own vc:  "sh l2tun all"

You obviously have thoughts this all out as your logic for how it will 
and should work is sound.

We are doing a very similar setup over here at the UofMn and this is 
working well for us.


Regards,
Ge Moua | Email: moua0100 at umn.edu

Network Design Engineer
University of Minnesota | Networking & Telecommunications Services



Ziv Leyes wrote:
> Hi,
> I'm trying to make sure this following scenario can work.
> 3 remote sites, one is the HQ which has a switch that handles 2 vlans,
let's say vlan 10 and vlan 20.
> The other two branches needs to be connected to the HQ and have a flat LAN
between them and the HQ, but each branch to it's own vlan, branch 1 to vlan
10 and branch 2 to vlan 20. They must NOT see each other's traffic.
> Every site has a switch and a router (C2801 I think) Is it possible to do?
> If yes, then I was thinking about L2TPv3, but in this case I'd need to
make two different xconnections between HQ-->Branch 1 and HQ-->Branch 2.
> How do I make this happen on the HQ router? I was thinking to bring the
vlans via a trunk from the switch and then finishing them on sub-interfaces
with dot1q and then xconnecting the sob-interface to each l2tp tunnel to
each respective branch. Is it correct or there is a better way?
>
> Will this work?
>
> Thanks in advance for your help
> Ziv
>
>
>  
>  
>
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