Only 4 TCP/UDP ports allowed in Single Virtual

Need to check the local TCP/UDP port and also logic is reversed as doing multiple 'not equal to' statements, try the following iRule:

 when CLIENT_ACCEPTED { 
      Check if requested port is allowing only TCP 443, TCP 80, UDP 4500 and UDP 500 
  if { ( [TCP::local_port] != 443 and [TCP::local_port] != 80 and [UDP::local_port] != 500 and [TCP::local_port] != 4500 ) } { 
       reject
  } 
}

Only thing not sure about is having the TCP:client_port and UDP::client_port within the same if statement would work, might need to test if the connection is a TCP or UDP connection first.