iRule - Source Address and "X-Forwarded For"

Let's see if this will work, I'm have a little trouble understanding the request:

when HTTP_REQUEST {
    if {([HTTP::header exists "X-Forwarded-For"]) and ([string tolower [HTTP::uri]] contains "/wf/hp.me")} {
        switch -glob [HTTP::header values "X-Forwarded-For"] {
        "10.0*" {
            HTTP::redirect "http://www.test.com/WF/H.me"
        }   
    }   
  }

    if { ([IP::addr [IP::client_addr]/16 equals 10.3.0.0]) and ([string tolower [HTTP::path]] starts_with "/wf"} {
        HTTP::header insert X-Forwarded-For [IP::remote_addr]
        HTTP::redirect "http://www.test.com/WF?sr=new"
   }   
     if {[string tolower [HTTP::path]] starts_with "/wf"} {
        pool Pool2
  }
}