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Webcast-Catalyst9k
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Can you extend a VLAN over WAN Links, if so how?

Hello, we are looking at the possibility of needing to extend our local 10.0.100.0 LAN network across a WAN link. This is a business recovery project and we

have 3 sites involved. The Core/Hub site(3640 router/6509) , an underground Server area(3550 or some other type of switch, this site is under construction), and a contracted Business recovery site(3640/6509). The underground server area is an extension (via fiber) of the Core/Hub 10.0.100.0 network. The plan is that we will have working servers at both of these sites , on the same vlan.

In the event of a disaster at the Core/Hub site , we activate this Core/Hub network at our Business recovery site. This Core/Hub network now running at the Business Recovery site still maintains it's 10.0.100.0 subnet. We still need to be connected to the Underground Server site, but now via a VPN/Internet link (CISCO 3015 VPN box and CISCO router running IPSEC) .

Is this possible and does it sound like it might be the way to go with this configuration.

Thanks in advance...

Mark

1 REPLY
Bronze

Re: Can you extend a VLAN over WAN Links, if so how?

There are a few ways to tunnel VLANs over WAN links. Check out L2TP for starters.

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