Hi,

We're running IIS6 websites behind a load balancing applicance with W3C
logging enabled. The issue is that for every request logged it displays the
load balancers ip address as the client-ip therefore making it impossible to
determine the source of the request from the logs. The load balancer does
however add the original ip address to an X-Header in the http header. What
we'd like to do is to be able to take this X-Header value and insert it into
the IIS logfiles as the c-ip value. Does anyone know if this is possible
perhaps using an ISAPI filter?

Thanks - J.

John wrote on Fri, 4 Jul 2008 18:24:59 +0100:

> Hi,

> We're running IIS6 websites behind a load balancing applicance with W3C
> logging enabled. The issue is that for every request logged it displays
> the load balancers ip address as the client-ip therefore making it
> impossible to determine the source of the request from the logs. The
> load balancer does however add the original ip address to an X-Header
> in the http header. What we'd like to do is to be able to take this
> X-Header value and insert it into the IIS logfiles as the c-ip value.
> Does anyone know if this is possible perhaps using an ISAPI filter?

> Thanks - J.

David Wang has an ISAPI that can do this, and has a configurable setting for
the header to use:

http://blogs.msdn.com/david.wang/arc...S-Servers.aspx

--
Dan