I need some assitance on disabling Telnet using ACLs

[Bimsara]

Hi Everyone,

I have tried multiple times to disable telnet using acls but i could still telnet from the pc, i have attached all my configurations,

Any help would be great! thank you.

[luis_cordova]

Hi @Bimsara 

Try this:

access-list 10 deny any

line vty 0 4

access-class 10 in

Regards

[Georg Pauwen · Accepted solution]

Hello,

you need to apply an access list to your VTY lines.

In the sample config below, you would deny TELNET access from all hosts on your network, and allow anyone else. 

access-list 1 deny 192.168.2.0 0.0.0.127
access-list 1 permit any
!
line vty 0 15
access-class 1 in

[balaji.bandi]

As per your request, you want to deny only certain IP address range @Georg PauwenPauwen suggestions works as expected.

if you deny any, all will be dropped, and you have the only option is console.(SSH still works though)

If you looking to disable telnet and enable SSH only ( as good practice - telnet is not secure)

line vty 0 4
transport input ssh

make sure you create a username and password.

[Leo Laohoo]

To all concerned,
It is very clear this thread is school work.
Help the students learn: Post the links to documents and configuration guides.
Please refrain from handing out answers.