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I am trying to disable TELNET on my Catalyst 3850 switch, and it's not working

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Last Modified: 2020-09-04
I am trying to disable TELNET on my Catalyst 3850 switch, and it's not working.  In spite of following the suggestion I found online and issuing the command below, I am still able to login with TELNET - worse yet, with the default "cisco \ cisco" user/pass credentials.  What am I missing here - why doesn't Telnet shut off?

Thanks for your help.


" Re: disable telnet, enable SSH
You can. Type

"transport input ssh"

on line vty 0 4 and it will only accept ssh connections. "
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Mohammad RummanehSr.Network & Security Engineer
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Commented:
Try

Line vty 0 15
transport input ssh
Damian GardnerIT Admin

Author

Commented:
Ok let me try this. Incidentally, do you know if this would be the same on my ASA 5516 too?  

Thanks Mohammed and standby  
Mohammad RummanehSr.Network & Security Engineer
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Commented:
Don't understand you, do you mean you have the same issue with your Asa firewall? 
some oneNetwork Architect
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Top Expert 2014

Commented:
On the 3850 do:
show run | sec line vty

Post the output here please.


On the ASA, do:
show run telnet

If there are any lines that look like...
telnet 192.168.0.0 255.255.0.0 inside

...issue the same command with the "no" keyword prepended...
no telnet 192.168.0.0 255.255.0.0 inside
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Commented:
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Damian GardnerIT Admin

Author

Commented:
sorry guys.  i forgot to close this out.  thanks for the help.
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