The port in the local host where the component listens.
property LocalPort: Integer read get_LocalPort write set_LocalPort;
The LocalPort property must be set before the component is activated (Active is set to True). It instructs the component to bind to a specific port (or communication endpoint) in the local machine (default 161).
You may also set LocalPort to 0. This allows the TCP/IP stack to choose a port at random. The value chosen is provided via the LocalPort property after the component is activated through the Active property.
Note: on macOS and iOS, root permissions are required to set LocalPort to any value below 1024.