Cisco IOS: Show incoming Telnet sessions

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Solution 1

You're looking for:

show users (or like most would type sh users)

Solution 2

show sessions will display outgoing connections from your switch/router to other devices.

show users will display incoming connections to the vty interfaces (ssh/telnet...) of your switch/router.

So i think you need show users here.

Solution 3

Other useful ways to see who is connected would include who, show line and show ssh. For detailed info on connections you can use show tcp.

Solution 4

Many IOS versions also support the who and where commands. Who displays the same output as show users. Where displays the same output as show sessions

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user2964971
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user2964971

Updated on September 18, 2022

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  • user2964971
    user2964971 over 1 year

    According to show ? the show sessions command is supposed to show Information about Telnet connections. Although I'm connected, the sessions does not show up. Both devices run Cisco IOS. How can I look up current Telnet sessions?

    On the router running the Telnet server:

     Router2#debug telnet 
     Incoming Telnet debugging is on
     Router2#
     Router2#
     Oct 25 13:34:59.063: Telnet226: 1 1 251 1
     Oct 25 13:34:59.063: TCP226: Telnet sent WILL ECHO (1)
     Oct 25 13:34:59.063: Telnet226: 2 2 251 3
     Oct 25 13:34:59.063: TCP226: Telnet sent WILL SUPPRESS-GA (3)
     Oct 25 13:34:59.063: Telnet226: 80000 80000 253 24
     Oct 25 13:34:59.063: TCP226: Telnet sent DO TTY-TYPE (24)
     Oct 25 13:34:59.063: Telnet226: 10000000 10000000 253 31
     Oct 25 13:34:59.063: TCP226: Telnet sent DO WINDOW-SIZE (31)
     Oct 25 13:34:59.071: TCP226: Telnet received DO SUPPRESS-GA (3)
     Oct 25 13:34:59.075: TCP226: Telnet received WILL TTY-LOCATION (23) (refused)
     Oct 25 13:34:59.079: TCP226: Telnet sent DONT TTY-LOCATION (23)
     Oct 25 13:34:59.083: TCP226: Telnet received WILL TTY-SPEED (32) (refused)
     Oct 25 13:34:59.087: TCP226: Telnet sent DONT TTY-SPEED (32)
     Oct 25 13:34:59.091: TCP226: Telnet received WILL WINDOW-SIZE (31)
     Oct 25 13:34:59.091: TCP226: Telnet received WILL LOCAL-FLOW (33)
     Oct 25 13:34:59.095: TCP226: Telnet sent DO LOCAL-FLOW (33)
     Oct 25 13:34:59.099: Telnet226: Sent SB 33 0 
     Oct 25 13:34:59.099: TCP226: Telnet received DO ECHO (1)
     Oct 25 13:34:59.103: TCP226: Telnet received WONT TTY-TYPE (24)
     Oct 25 13:34:59.103: TCP226: Telnet sent DONT TTY-TYPE (24)
     Oct 25 13:34:59.103: Telnet226: recv SB NAWS 80 24
     Oct 25 13:34:59.107: TCP226: Telnet received WONT TTY-LOCATION (23)
     Oct 25 13:34:59.115: TCP226: Telnet received WONT TTY-SPEED (32)
     Router2#
     Router2#
     Router2#show sessions
     % No connections open
     Router2#
    

    On the router connected to the Telnet server:

     Router2>show sessions
     % No connections open
     Router2>
     Router2>
     Router2>enable
     Password: 
     Router2#     
     Router2#show sessions
     % No connections open
     Router2#