ClientIPForwarder is a simple ISAPI plug-in for Microsoft ISA server using pass-through technology to control incomming requests on Microsoft ISA server. It modifies http(s) request header and adds variable IPREMOTEADDR containing client IP address to it.

ClientIPForwarder also can map http server variables into your own variables in http header. This plug-in addresses a common problem when your internet asp, php or java application running on internet server behind Microsoft ISA server needs to collect real client IP addresses or other real client variables in http header. Without the plug-in it can only access ServerVariables.REMOTE_ADDR (or REMOTE_HOST) containing IP address of ISA firewall.

Variable IPREMOTEADDR can be accessed for example by ASP object Request and collection GetServerVariables: Variable IPREMOTEADDR and your own variables can be accessed for example by ASP object Request and collection GetServerVariables.

ClientIPForwarder was tested on Microsoft Windows 2000 Server SP3 and higher + Microsoft ISA Server 2000 with or without ISA SP1 and Microsoft Windows 2003 Server + Microsoft ISA Server 2004.

Requirements:
Microsoft ISA Server 2000/2004

Limitations:

В· Information message is written into Windows Event Log


What's New in This Release:

В· ISA Server 2004 version
В· changes for code compatibility with ISA 2004 version
В· minor changes in documentation and trial message logging