Experts, I have a legacy server which I would like to migrate behind a new Forefront implementation. This machine is assigned a public IP, 65.xx.xx.x99. Forefront is tentatively planned to be located at 65.xx.xx.100. The gateway from our ISP is located at 65.xx.xx.105.
There are several more websites published, in the 65.xx.xx.99-114 range.
1:1 NAT is not an option.
My understanding is that I can set up a route relationship instead of a NAT inside of Forefront to make this happen. I'm also wondering if I need to set up some additional CIDR to further segregate the ranges. I really hope that isn't the case since the gateway was assigned in the middle of our block.
Much beyond that I'm lost. Some quick guidance would be much appreciated.