Programming
975
Control with Telnet Server
In the control system over telnet server, communications are performed
through connection between the sockets provided by the processes of the
external controller and the E5071C to establish a network path between
them.
A socket is an endpoint for network connection; port 23 and port 5025 are
provided for the sockets for the E5071C. Port 23 is provided for
conversational control using telnet (user interface program for the TELNET
protocol) and port 5025 for control from a program.
• To use telnet, port 23 and 5025 should be opened through
Windows firewall.
• By opening port 23 and 5025, the E5071C can be controlled
remotely using telnet. It is recommended to close port 23 and
5025 after usage from the security prospective.
Preparing the E5071C
To communicate with the external controller, follow these steps to turn on
the telnet server of the E5071C in advance.
System > Misc Setup > Network Setup > Telnet Server [ON]
Conversational control using telnet (using port 23)
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