Forum Discussion
hooleylist
Oct 30, 2008Cirrostratus
Hi there,
By default LTM shouldn't modify the HTTP headers. If the client makes a request with a host header, LTM should pass it through unchanged to the pool member. The main thing that would change when going through LTM would potentially be the source IP address if you have SNAT enabled. If you capture a tcpdump on both legs of the request, you should see the same HTTP host header.
The only thing I can think of where the host header would be different between going through LTM and going direct to the server would be for ports. Is it possible that the client is making a request to the VIP on a nonstandard port with the port number in the host header and the pool member is configured on a different port? If so, perhaps the client request isn't matching the virtual host definition?
Also, if you post in the advanced config section (Click here), you'll get more relevant eyes on your post.
Aaron