I can appreciate that, I know that I would see traffic hit the old IP for >3 days. I suspect old Java clients, etc, that would resolve IPs once on startup and

I can appreciate that, I know that I would see traffic hit the old IP for >3 days. I suspect old Java clients, etc, that would resolve IPs once on startup and never again. In our case it was worth keeping things working for a few days, but after a week at the outside we'd kill the proxying/forwarding.