I have two NSA 5600 SonicWall appliances that are, of course, HA sync. I was wondering and this just me thinking outside the box; is it possible or does it make sense to configure say, the primary unit with one ISP and all necessary rules, address objects, NAT policies in regards to this one ISP and configure the secondary appliance with the secondary ISP with necessary rules, address objects, NAT policies in regards to the secondary ISP? So if one fails, it can failover to the secondary unit using the secondary ISP with all necessary rules in place? Or is this somewhat too much thinking outside the box??
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