Logging all traffic iRule.

I have a similar requirement , were customer is using automap and want to enable logging for specific virtual server to capture all sessions , its not working since unknown keyword matching in snat & node side , also virtual server is running on port smtp so i cannot add http profile

Code

when CLIENT_ACCEPTED {
   set client "[IP::client_addr]:[TCP::client_port]"
      set vip "[IP::local_addr]:[TCP::local_port]"
         set snat "unknown"
            set node "unknown"
            }
   when SERVER_CONNECTED {  
     set snat "[IP::local_addr]:[TCP::local_port]"
      set node "[IP::server_addr]:[TCP::server_port]"
                }
    when CLIENT_CLOSED {
        log connection info
          log local0.info "Client $client -> VIP: $vip -> SNAT: $snat -> Node: $node"
          }

any help appreciated

/snl

i think it is wiser to start a new question.

and explain what you mean with unknown is matching, if unknown is shown that is for a reason then those fields aren't known yet when the log occurs.

also you don't need a HTTP profile for any of these irule statements, it is all TCP or lower.