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 X435, X440-G2, X450-G2, X460-G2, X465, X590, X620, X670-G2, X690, X695, X870, 5320, 5420, and 5520 series switches.