IIS X-Forward-For ISAPI Filter
A recent customer issue came up where they were load balancing servers but we unable to get the true client address logged in their IIS logs. They had their servers fronted by a BIG-IP and wh...
Published Sep 23, 2005
Version 1.0
It's nothing that complicated. All it does is read the X-Forwarded-For HTTP header sent to the webserver from the firewall (or other intermediary) and replaces the c-ip field in the IIS logs with that value for that request. Otherwise, there is no other way with IIS to show the true identity of a client if a firewall changes the source ip address.
-Joe