[c-nsp] Loss of Telnet Capability - RESOLVED

Stephen J. Wilcox steve at telecomplete.co.uk
Sat Jul 31 15:28:24 EDT 2004


On Sat, 31 Jul 2004, Tejal Shah wrote:

> Can anyone explain why people across the world face this issue on that day
> only ?
> 
> Is there any bug or attack ?

No, theres just a lot of people in 'the world'. I had a BBQ today.... whats 
that, 10m other folks did too?? amazing! :)

Steve

> 
> 
> Regards
> Tejal
> ----- Original Message ----- 
> From: "Oliver Boehmer (oboehmer)" <oboehmer at cisco.com>
> To: "Dinesh" <dineshtj at spymac.com>; "Richard J. Sears" <rsears at adnc.com>;
> <cisco-nsp at puck.nether.net>
> Sent: Thursday, July 29, 2004 3:34 PM
> Subject: RE: [c-nsp] Loss of Telnet Capability - RESOLVED
> 
> 
> > Dinesh <> wrote on Thursday, July 29, 2004 11:31 AM:
> >
> > > We also faced the same problem today and the same is resolved after
> > > clear the user by using the clear tcp line vty ** command.
> > >
> > >  Can anyone brief me what is TCB address.
> >
> > TCB (transmission control block) is in internal IOS data structure to
> > manage TCP connections..
> >
> > oli
> >
> > > ----- Original Message -----
> > > From: "Richard J. Sears" <rsears at adnc.com>
> > > To: <cisco-nsp at puck.nether.net>
> > > Sent: Thursday, July 29, 2004 1:48 AM
> > > Subject: [c-nsp] Loss of Telnet Capability - RESOLVED
> > >
> > >
> > >> Thanks to everyone who provided suggestions. The problem has been
> > >> resolved.
> > >>
> > >> There was a telnet connection on vty 2 that I was unable to clear.
> > >> Thanks to Laris Benkis <laris at tpn.cc> who reminded me of the sho tcp
> > >> brief command, I was able to locate the tcb number of the established
> > >> session (which was really no longer connected) and nuke it with a
> > >> clear tcp tcb # command.
> > >>
> > >> As soon as I did that, telnet was immediately restored to the router.
> > >>
> > >> Thanks again for everyone's suggestions and help.
> > >>
> > >> ******************************************
> > >> 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."
> > >>
> > >> _______________________________________________
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> > >
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> >
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> >
> >
> 
> 
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