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I work for a hosting company and we set tunnels up for our clients. The client connects to us, and we host AD and Exchange for them, among other things.
I have one client that has about 5 locations. Four of the locations are on a metro ethernet connection to their corporate office. The corporate office has a tunnel to us. They want to have a backup internet line at each of their locations in case the fiber gets cut.
My first thought is that we get them an internet T1 line, and then we mirror their config in their router (Cisco 1800s), and just keep the backup router off until needed. They would have to intervene by switching the cable from the internal interface on the "down" router to the backup router when needed. They run EIGRP on their internal LAN, so the next thought was I'll use routing and metrics to provide a way for them to have a "poor man's failover."
My question is this:
Since their corporate network connects to us through VPN, my network knows how to get to these spoke networks through their corporate tunnel. If they do go down, and they have to use their backup router, when their tunnel comes up to my concentrator from their "down" site, is that going to cause a routing problem? My other thought was to set up a VPN profile in their corporate router for their branch sites, but I think this could cause a routing loop. Any ideas or suggestions will be GREATLY appreciated!!
I'm at a loss on what to do for this client.
Thanks so much!!
March 27, 2008 3:24 PM
August 13, 2008 3:28 PM