Use LocalPort to determine the port number that is bound to the socket connection. For server endpoints of listening connections, LocalPort is the ID associated with the service the server socket provides. For client or server endpoints of connections to another socket, LocalPort is usually an arbitrary value picked when the connection was made.  

Many values of LocalPort are associated by convention with a particular service such as FTP or HTTP. 

LocalHost 

RemotePort 

LookupPort