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AR500, AR510, and AR530 V200R007 Commands Reference

This document describes all the configuration commands of the device, including the command function, syntax, parameters, views, default level, usage guidelines, examples, and related commands.

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telnet server port

telnet server port


The telnet server port command configures the listening port number of a Telnet server.

The default listening port of a Telnet server is 23.


telnet server port port-number


Parameter Description Value
port-number Specifies the listening port number of a Telnet server. The value is an integer that is 23 or ranges from 1025 to 55535. The default value 23 is the standard Telnet server port number.


System view

Default Level

3: Management level

Usage Guidelines

Usage Scenario

To protect the Telnet standard port against attacks and ensure network security, configure the listening port number of the Telnet server.


A Telnet client can log in to the server with no port specified only when the server is listening on port 23. If the server is listening on another port, the port number must be specified upon login.

Before changing the current port number, disconnect all devices from the port. After the port number is changed, the server starts to listen on the new port.


# Configure the listening port number to 1026.

<Huawei> system-view
[Huawei] telnet server port 1026
Updated: 2019-05-29

Document ID: EDOC1000097293

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