iRules: Putting the source port of a client in a HTTP header to a backend for logging

Figured out myself using some other posts, i had to use CLIENT_ACCEPTED instead of SERVER_CONNECTED event. Now it works fine! 😀

So to be complete, this is the code:

when CLIENT_ACCEPTED {
  set clientsourceport [TCP::client_port]
  set curtime [clock seconds]
  set formattedtime [clock format $curtime -format {%T} ]
  set client_ip [IP::client_addr]
  
  log local0. "Connection on $formattedtime from $client_ip with source port $clientsourceport."
  }
  
when HTTP_REQUEST {
  HTTP::header insert X-Client-Source-Port "$clientsourceport"
  log local0. "Request headers [HTTP::request]"
}