TCP:Protocol issue

Generally speaking, a 404 is not going to be returned by the LTM because it's not a web server. So my inclination is that the request is getting to the webserver, which is responding with a 404.

 

 

When you hit the webserver directly, I suspect you are using different URLs which could change the way IHS responds depending how it is configured. To construct an appropropriate test, in my opinion, create an entry in your local hosts file with the IP address of the webserver the DNS name of the VIP. Then you will be hitting the webserver directly, but using the DNS name of the VIP.