User's Manual

56 MDS Master Station MDS 05-6399A01, Rev. D
5.6.5.1.6 IPPayload
Under the IP Payload menu, up to three instances of the IP Payload service may be configured. The IP
Payload service can operate in 4 different modes:
 TCPServer
 TCPClient
 TCPServer/Client
 UDP
Each of these modes have different use cases and configuration options, as described below:
TCP Server:
The TCP server mode allows IP connections to be established with the Master Station. Data received on
this TCP socket will be transmitted over the air to remote SD radios as if the data was received on the
payload serial port of the Master Station. Over-the-air serial data originating from a remote SD radio will
be transmitted out of this TCP socket. This mode of operation can be thought of as a ‘remote terminal
server’, not to be confused with the SD remote radio’s Terminal Server functionality.
TCP Server specific configuration options include:
Local IP Port – The TCP port number that the server will listen for connections on.
IPv4 Bind IP – If the Master Station is configured with multiple IP interfaces; you can specify
that the IP Payload service only will listen for connections on one of the IP
addresses of the system. This is useful in VLAN configurations where you wish
to only make the IP Payload server available on a specific VLAN in the system.
TCP Client
The TCP client mode allows the Master Station to connect to a TCP server when there is traffic to send.
This mode of operation is not often used in Master Station configurations, but may be useful in certain
applications.
TCP Client specific configuration options include:
Server IP Address – The IP address of the server the Master Station is to connect to.
Remote IP Port – The TCP port that the server is listening on.