Loss of Telnet Capability to 6509

Richard J. Sears rsears at adnc.com
Wed Jul 28 18:54:07 UTC 2004


We posted this to cisco-nsp but someone suggested posting it here as
well...



We have a 6509 running a SUP720 in IOS only mode (no cat os). 

At around 4am this morning, we lost our ability to telnet to the router.
Running a tcpdump shows that the router never responds to the telnet
request. 

All functions and interfaces on the router seem fine (bgp, etherchannel,
ibgp, vtp, hsrp) and I can console into the sup with no problems at all,
we just cannot telnet into it. The CPU is at around 6%.

I have checked all access lists on the router, none were added/removed
or modified on line vty that would cause this problem. All logging
appears normal.

We are running Version 12.2(17a)SX3.

Anyone have a similar problem or know how to check or restart the telnet
process on the router without a reload...?


******************************************
Richard J. Sears
Vice President         
American Digital Network                          
----------------------------------------------------
rsears at adnc.com
http://www.adnc.com
----------------------------------------------------
858.576.4272 - Phone
858.427.2401 - Fax
INOC-DBA - 6130
----------------------------------------------------

I fly because it releases my mind 
from the tyranny of petty things . . 


"Work like you don't need the money, love like you've
never been hurt and dance like you do when nobody's
watching."




More information about the NANOG mailing list