On Fri, 23 Jul 2004 14:14:59 +0100, Kevin Howell spoketh
Well, first you say that it _is_ stripping the local IP address out of the headers, and then you say it isn't. I'm not sure which one is your problem...
If the web based application is on the WAN side of the firewall and the clients are on the LAN side of the firewall, then the web based application will only see the public (WAN side) IP address of the firewall rather than the private IP address of the clients. That's what NAT does. It can be disabled, but then you'll need to renumber your LAN so all the clients have public IP addresses. (This doesn't mean they'll be exposed to the public, just that they are not in the private IP address space).
Lars M. Hansen