LTM - I-Rule http_process_state_prepend - Invalid action

Hi Kevin,

thanks a lot for your proposals and good comments. I have reworked the I-rule completely and I get an error when using elseif. I have version 11.5.1 HF2 and it seem elseif is not supported.

when HTTP_REQUEST_DATA {  
   log local0.info "$LogString: REQUEST_DATA triggered"
   if {[class match [IP::client_addr] equals authError]}
   {
      log local0.info "$LogString: REQUEST_DATA authError"
      if { [HTTP::payload] contains "6 BOOTSTRAP" }
      {
         log local0.info "$LogString: contains Bootstrap - send 503"
         HTTP::respond 503 
      }
      else
      {
         log local0.info "$LogString: contains other than Bootstrap - send to Bootstrap - pool APPL_iwe"
         pool APPL_iwe
      }
   }
   else
   {
      log local0.info "$LogString: Filter_noserial REQUEST_DATA no_auth_error"
      if { [HTTP::payload] contains "" }
      {
         log local0.info "$LogString: Filter_noserial matched - send 204"   
         HTTP::respond 204 "Connection" "close"
      }  
      if { [HTTP::payload] contains "Router" }
      {
         log local0.info "$LogString: Filter_ROUTER - set Router PRGAV4202N"                
         HTTP::payload replace 0 [HTTP::payload length] [string map -nocase "Router PRGAV4202N" [HTTP::payload]]
      }    
     if { [HTTP::payload] contains ">0.0.0.0" }
     {
        log local0.info "$LogString: Filter_replace 0.0.0.0 with client IP"   
        set client_ip [IP::client_addr]
        HTTP::payload replace 0 [HTTP::payload length] [string map -nocase ">0.0.0.0 >$client_ip" [HTTP::payload]]
      }
      else
      {
        log local0.info "$LogString: REQUEST_DATA else - disable"  
        HTTP::disable
      }
      log local0.info "$LogString: REQUEST_DATA completed"   
   }
}

If I use elseif I get following error:

01070151:3: Rule [/Common/public_20140602] error: /Common/public_20140602:100: error: [undefined procedure: elseif][elseif { [HTTP::payload] contains "Router" }
{
log local0.info "$LogString: Filter_ROUTER - set Router PRGAV4202N" 
HTTP::payload replace 0 [HTTP::payload length] [string map -nocase "Router PRGAV4202N" [HTTP::payload]]
} ]

Any idea why this is an undefined procedure? br, Matthias