Extend VLAN over the WAN

[Ced Caldwell]

Is there any documentation on how to extend a VLAN over WAN using a ASA 5520 appliance?

I will be inheriting the network appliance and need to make the configuration change.

Thanks.

[Jon Marshall]

Ced

You are going to struggle to do this with the ASA as it is really only a firewall.

If you don't have VPLS etc. on your WAN then the general way to do this is to use L2TPv3 but the ASA doesn't support this. It is generally supported by routers (although not all) so if you have a router in front of the ASA or behind it for that matter you may be able to use L2TPv3 -

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

Why exactly do you need to extend a vlan across your WAN ?

Jon

[TGF_Cisco]

Hello I have a similar situation coming up. We have a data center in our enterprise and we are looking to migrate over to a hosted infrastructure.

what we have currently is a pair of cisco 3750 switches running as a core with a pair of ASA 5520 providing wireless, dmz and video conferencing services.

In terms of design considerations, I believe then the ideal setup would be to put a router in front of ASA that would strech all our vlans to the hosted site.

What needs to be setup on our switches? I belive it would just physically connect to the new router.

We are also runnign out of ports in core switches and i beleive it is not a great idea to invest in adding another switch since the data center network is moving over to the new facility. what options do i have?