[c-nsp] Cisco/HP 3020 refuses telnet

Church, Charles cchurc05 at harris.com
Mon Jul 21 09:41:06 EDT 2008


Is it possible it's out of memory?  That can cause telnet to fail, but
console access would still work. 

Chuck

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Tassos
Chatzithomaoglou
Sent: Monday, July 21, 2008 2:39 AM
To: matthew zeier
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Cisco/HP 3020 refuses telnet


On our blade switches there is an option on the web interface that
allows management from 
all -external- ports. By default this is disabled.

--
Tassos

matthew zeier wrote on 21-Jul-08 04:28:
> 
> 
> Peter Rathlev wrote:
>  > On Sun, 2008-07-20 at 16:15 -0700, matthew zeier wrote:
>  >> I have a Cisco/HP 3020 blade chassis switch that all of a sudden 
> stopped
>  >> accepting telnet (because rancid started to fail config checks).
>  >>
>  >> Short of rebooting I'm not sure how to fix.  I can login on the
console
>  >> (using tacacs auth of all things, so IP works) and can ping it.
But
>  >> telnet gives a connection refused.  I've even go so far as
changing the
>  >> IP address on fa0.
>  >>
>  >> Any clues/ideas?
>  >
>  > How do you log in now? Through the management-webinterface? Can you
see
>  > the running config, and see if there are any "access-class" defined
in
>  > you "line vty" config that would deny you access?
>  >
>  > I might also be "management-interface"-related. The IGESM switches
we
>  > use (mainly IBM) mostly only accept connections to the interface
Vlan
>  > marked with the "management" command. (Btw: Changing the management
>  > interface is a little unintuitive, but well explained in the docs.)
> 
> I have four chassis and 8 of these switches all basically with the
same 
> config.  Only one is no longer accepting telnet.  I can only login to
it 
> from the serial console.
> 
> In fact, the first thing I checked with the vty and access list (there

> isn't one) and then I diff'd the config to the other working switch in

> that same chassis.
> 
> I hate these Cisco-but-not-really-Cisco switches so much (no TAC 
> support!).  I like the ease of wiring but they're such a pain that
I've 
> now started buying the pass-through ethernet modules and running 32 
> cables to two 3650s!
> 
> 
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