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If my sonicwall NSA 2400 was to ever die I want it to automatically failover to the old PRO 2040 it replaced. Is this possible with two different generations of Sonicwall? If so, what things do I need to take into consideration? My Google-fu fails me so far. Thanks!

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For a failover scenario, the two devices should be of the same model and running identical firmware. Also, the two devices are to be registered with Sonicwall as a Failover pair.

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If you have an L3 switch on the LAN side of things that is capable of resolving a next-hop gateway, then you could have it change it's default route based upon a path validation rule. – SpacemanSpiff Nov 2 '11 at 17:02

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