This isn't exactly a specific IMail question. I'm switching ISPs and since my Public IP address will change, I was wondering if there's a way to minimize downtime due to DNS changes by having my old and new Public IP NAT to a single private IP where IMail runs. I have an internal router that can route between the two circuits:
IMail (Priv. IP Z.Z.Z.Z) --- Internal Router------New Router that does NAT----------> New Public IP X.X.X.X
|
|----------------Old Router that does NAT---------> Old Public IP Y.Y.Y.Y
1) Is it possible to have two public IPs NAT to a single private IP?
2) How would packets get routed as they go out? I.E. should I just route everything to the New Router for outgoing packets?
thanks for any input! rob
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