Configures the TCP port used by Telnet for communication.
| portno | Specifies a TCP port number. The default is 23. The range is 1 through 65535. The following TCP port numbers are reserved and cannot be used for Telnet connections: 22, 80, and 1023. |
| default | Specifies the default Telnet TCP port number. The default is 23. |
The switch listens for Telnet connections on Port 23.
You must be logged in as administrator to configure the Telnet port.
The portno range is 1 through 65535. The following TCP port numbers are reserved and cannot be used for Telnet connections: 22, 80, and 1023. If you attempt to configure a reserved port, the switch displays an error message similar to the following:
configure telnet port 22 Error: port number is a reserved port
If this occurs, select a port number that is not a reserved port.
The switch accepts IPv6 connections.
The following command changes the port used for Telnet to port 85:
configure telnet port 85
The following command returns the port used for Telnet to the default port of 23:
configure telnet port default
This command was first available in ExtremeXOS 10.1.
Support for IPv6 connections was added in ExtremeXOS 11.2.
This command is available on ExtremeSwitching 5320, 5420, 5520, and 5720 series switches.