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For security purposes, you may want to change the TCP port number for Telnet requests and HTTP requests. The default settings for these ports are the well-known TCP ports. HTTP requests use TCP port 80, and Telnet requests use TCP port 23.
Once you change the TCP port number for HTTP, only users who know the new port number can open the Web Agent. And once you change the TCP port for Telnet, only users who know the new port number can start Telnet sessions to the switch.
When you change the TCP port number for either of these protocols, the change takes effect immediately and all connections through the previous port number are disconnected. Any changes that you make to these TCP port numbers are retained if you reset the switch or if the primary supervisor module fails over to the standby supervisor.
This section contains procedures for the following tasks:
You must have administrative privilege to view or change the TCP port for HTTP or Telnet.
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