Download the Microsoft Application Request Router (ARR) from Application Request Routing : The Official Microsoft IIS Site then install this on your IIS webserver. On the Stingray Traffic Manager (STM), create a request rule as shown below because the ARR looks for the real source IP in the X-Forwarded-For header whereas the STM adds the real IP address as the X-Cluster-Client-Ip header: # Look up the remote client IP address $ip = request.getRemoteIP ( ) ; # ACTIONS http.setheader ( "X-Forwarded-For" , $ip ) ; ... View more