On 9/3/2013 4:29 PM, G. T. Stresen-Reuter wrote:
Our consultant claims to have done some research and found that there are some features
in the ISA server not found in other caching proxy servers. One of them he classified as
a "sort of inverse NAT" (without going into any detail).
First, I should disclose that I know even less than everyone who has
responded on this thread so far.
However, I did do some Google searching on "inverse NAT ISA server".
This brought up some articles that describe the feature. e.g. :
http://www.techrepublic.com/article/publish-network-resources-with-isa-server/
Based on these articles, my conclusion is that what they call "inverse
NAT" is in fact ... http proxying.
Perhaps ISA Server was broken in some way originally such that proxying
requests from "outside" clients to "inside" servers was not possible.
Then... in a later release that capability was added, and of course
needed a name, so "reverse NAT" was born, even though it isn't NAT of
any kind. Anyway, just a theory. Beware btw in that article, when he
says "client", he typically means "server".
If your consultant is talking about the same feature set, then surely
ATS (or pretty much any other decent proxy server) can do it, when
configured appropriately. I'd recommend that you assume this is the
case, and ask consultant "do you mean a proxy scenario like this...
<insert diagram> ?". See what they say.
