How to test Telnet ?

My laptop connected to router.

What shall I do to test Telnet ?

I download software called Putty, can someone give me commands need to be use in CMD or any other place to test Telnet.

3 Answers

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  • BigE
    Lv 7
    4 years ago
    Favourite answer

    Most business/enterprise routers disable telnet by default because it can be easily sniffed. Home routers won't respond to it because you use http/https to configure it, not command line.

    You can always "connect" to any http web server port 80 (no login, no password) and

    issue a "get /".

    or you connect to a smtp server, port 25, and see the banner or spoof mail.

  • GTB
    Lv 7
    4 years ago

    Telnet uses port 23; specify port 23 in PuTTY and enter the IP address of the device to which you wish to connect; you will also need to know the Telnet commands as used by the device.

  • 4 years ago

    Here is a tutorial to using telnet with putty.. although you probably don't use the specific devices mentioned it does explain the connection using putty! http://www.cisco.com/c/en/us/support/docs/optical-...

    PS - telnet (on the internet to a computer or server) is not used with very many devices these days it is way too insecure SSH is used more often these days.

    Here is a list of telnet commands (once you have established a connection with putty!) https://technet.microsoft.com/en-us/library/c.aspx

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