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1G Link Failover

Good afternoon,

Warning: I am new to the networking world.

My current equipment at the facility is a Cisco 3800 Router but configured (not used), Cisco catalyst 4503, Cisco ASA (not used).

Last week I had a fiber cut on my 1G link from my facility in Georgia to my facility in Nevada, so they were completely down for 13 hours. I would like to setup a site to site VPN connection with my AT&T circuit, and forward the traffic back to my ASA in Georgia, and would like for my IP addressing to stay the same as if I were still on the the linked connection.

So what I am asking for to know if this is possible? Would any extra equipment be necessary? Can I make the failover automatic, that is fails over automatically when the connection goes down?

Let me know if you need more information.

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