Telnet connection problems

Unanswered Question
Oct 16th, 2008
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The problem is that I can not telnet to a switch, even though I can traceroute to it from my PC. Moreover, I can telnet to that switch from the switch my PC is connected to. Can not understand, where the trick is..

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vishwancc Fri, 10/17/2008 - 00:01
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Hi,

Are you saying you cannot telnet to the switch from the PC,but from the switch you are able to.

Are u able to telnet to the switch where your laptop is connected.

What vlan is your PC in .


fgasimzade Fri, 10/17/2008 - 00:11
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Are u able to telnet to the switch where your laptop is connected.


Yes



What vlan is your PC in


vlan 2


All communication goes over Layer 3

mheusing Fri, 10/17/2008 - 00:02
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  • Cisco Employee,

Hi,


If you can ping and traceroute the switch IP and have verified telnet works we can conclude the problem is above OSI layer 3.

So I would check:

1) telnet application works in the PC

2) personal FW (or the like) on the PC preventing telnet

3) FW between PC and switch

4) access restrictions for telnet in the switch (like ACL applied to VTY lines)


Hope this helps! Please use the rating system.


Regards,

Martin

fgasimzade Fri, 10/17/2008 - 00:12
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1) I can telnet to any other switch, so I assume it works fine


2) FW is disabled


3) Disabled


4) No IP access lists defined

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