by adrien » Sep 20 03 12:38 pm
OK
When the NAT sessions show up in GateKeeper, what do they look like?
We have never had a problem with Transparent Redirects before, but there are a couple of potential reasons why perhaps the sessions are not being intercepted.
1. The WWW Proxy is not bound to the same interface that these clients are connected on. Transparent redirection redirects only on the same port same interface. If you have multiple local NICs, then if the WWW proxy is not bound to one of these interfaces, then WWW traffic received on that interface will be redirected up, but there will be nothing there - that would break the connections, and block all browsing.
2. The clients are using some other sort of proxy - perhaps SOCKS, and connecting on port 1080 to a SOCKS server. MSIE supports SOCKS as well as normal proxy operation. I guess you would see this though.
Adrien