irule logging?

when HTTP_REQUEST { 
  if { [class match [IP::client_addr] equals ip-blacklist] } { 
    log local0. "[IP::client_addr] blocked due to blacklisting on virtual [virtual name]. Desired FQDN: [HTTP::Host]"
    reject 
  }
}

wow thank you! ill give it a try :)

getting this when I try to save irule:

error: [undefined procedure: HTTP::Host][HTTP::Host]

Sorry, it has to read HTTP::host. (lower case)

Thank you yet again, I owe you a beer :D