Rewriting Host Header to Server Name
Starting with Avi Vantage release 16.2.3, when proxying a request to a back-end server, an SE can rewrite the host header to the server name of the particular back-end server to which the request is forwarded. This functionality can be turned on for selected or all servers in the pool.
The pool-level check box (option /#1) takes precedence (over option /#2). If the pool-level option is selected, the behavior is on for all servers, no matter what selections have been made on a per-server basis.
If the rewrite host header to SNI is turned on as well as this feature, it takes precedence over the “to server name” feature.