L2tpv3 on SVI Interface

Unanswered Question
Feb 8th, 2010

Hi all,

I have a 1803 with an H-WIC 8-port switch module. I'd like to configure L2tpv3 on one of this switched port using SVI interface: is l2tpv3 supported on the SVI? Starting from wich IOS?

I've read that on cisco 870 series the L2tpv3 is supported on svi interface starting from 12.4(20T): is the same for cisco ISR?

Many thanks in advance for your support

Gianluca

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cannone78 Mon, 02/08/2010 - 06:06

I've to bridge between 2 sites over wan since I need L2 connectivity between the 2 LAN.

cannone78 Wed, 02/10/2010 - 03:07

Hi,

sorry for the dealy.

I need L2 connectivity between the 2 sites since I have a wireless solution where the client connected to AP needs to have L2 connectivity towards thier GW installed in another site.

Anyway I've configured a tunnel L2tpv3 between a cisco 1803 and a cisco 877: It seem works..I can see the tunnel esablished, I can ckt sent/received over the new connection, I can see the remote mac-address, but when I try to ping it doesn't work.

I'm troulbeshooting the problem....

Thanks for your support

Gianluca

Paolo Bevilacqua Wed, 02/10/2010 - 05:39

I need L2 connectivity between the 2 sites since I have a wireless solution where the client connected to AP needs to have L2 connectivity towards thier GW installed in another site.

So put a router where the AP is, end of troubles.

cannone78 Wed, 02/10/2010 - 06:43

Is just this my problem: I've a router in each site where there is an AP and in the central site where there is the GW!!!!         

But I need L2 connectivity between AP and GW--> L2tpv3..

Trouble continue...

Paolo Bevilacqua Wed, 02/10/2010 - 06:51

What do you have, bluesocket or other captive portal ?

None of these require L2 between portal and APs.

Giuseppe Larosa Mon, 02/08/2010 - 05:24

Hello Gianluca,

I would expect L2TPv3 supported only on standard "router" interfaces on an ISR router.

Even if it is do, you can easily get what you want to achieve with a lan cable connecting a "router" interface to an etherswitch module port.

see

http://www.cisco.com/en/US/docs/ios/12_3t/12_3t2/feature/guide/gtl2tpv3.html#wp1046175

the case of 8xx router is different because I think they have only that kind of L3 interfaces (the SVI)

Hope to help

Giuseppe

cannone78 Mon, 02/08/2010 - 06:08

ok many thanks.

I'm reading your link.

Any way on ISR on SVI interface the 'xconnect' command seems to be supported (12.4(15T10)): I'll try to configure it..to verify what figure out.

Gianluca

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