Thinking about doing this for the transparent web proxy and soon to be released RADIUS features.. I don’t see why it wouldn’t work, just wondering if anyone has done this.. Great way to save rack space!
Newer done it with Virtual Server (like to stay away from MS product until at least one SP, or two, has been released). However I have done quite a few things in VmWare… and since they are releasing their midrange product (GSX) as freeware I think that is the way to go.
This link http://forum.mikrotik.com/t/policy-based-routing/4850/1 talks about a testbed I did to check on policy based routing, 6 MT routers in one hardware, and that hardware was also running my PBX, backup AD controller as well as a SQL server at the same time.
/Jörgen