we need that the source IP adress arrive until server

The X-Forwarded-For header includes a header. It does not change the source address. If you need source arrive at server, turn off SNAT. If connection stop working, turn on SNAT because you need it.

Hi Kevin

if i cannot turn off SNAT, how to resolve this point ? how i can return source address to server ?

BR

Hi Kevin,

Is it possible to apply an IRule to recover ip on XFF field and returned to the server ?

If the intention is to log the source IP address that connects to the web server, then you can use X-Forwarded-For header. You need to configure the web server to log the X-Forwarded-For header. Link. The source IP address will remain that of SNAT.

You can recover the XFF header in an iRule and supply that to the server in a header of your choice. However if you need SNAT to make the application work, you cannot simply change the source address of the actual request going to the server.