[c-nsp] telnet session hangs on 6503-E

[Scott Granados]

Yes, run SSH!


Telnet is extremely bad form.;)

----- Original Message ----- 
From: "Roger Wiklund" <copse at xy.org>
To: <cisco-nsp at puck.nether.net>
Sent: Friday, October 23, 2009 4:35 PM
Subject: [c-nsp] telnet session hangs on 6503-E


> Hi
>
> Im having a weird problem with telnet to a C6503-E. When telneting from 
> the
> the router connected to its WAN, There is no problem at all.
>
> However, when Im telneting from my jumphost telnet session hangs after
> 30seconds if im lucky. Usually it hangs before I get to enter the password
>
> When debugging tcp, I get this error when the session hangs:
>
> Oct 23 23:25:31: TCP2: bad seg from 192.168.105.117 -- outside window: 
> port
> 23 seq 2084376338 ack 2015498788 rcvnxt 2084376350 rcvwnd 4092 len 12
>
> I have tried service nagel, service tcp-keepalive-in/out, disabled tacacs,
> tried to telnet to differnt IPs/VRFs on the switch, but still the exact 
> same
> thing.
>
> I use this jumphouse for this customer, and they have a bunch of 2800 and
> 3800 that works perfect. But the three 6500s they have all behave like 
> this.
>
> Any tips?
>
> Thanks
> Roger
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