Re: CAn Ping but not telnet /

From: Daniel Sheedy (dansheedy@gmx.net)
Date: Thu Jul 22 2004 - 10:56:22 GMT-3


Hi Guys,

Seems Wally didnt reply to the group when he got it working.

He added a static route on the Router B and C, and suddenly the packets
could find their way back!
Magic at its best! :)
It was a case of too broad default routes.

Dan Sheedy

----- Original Message -----
From: "Tim Fletcher" <groupstudy@fletchmail.net>
To: "MADMAN" <dmadlan@qwest.com>; "W Walla" <wallafly@hotmail.com>
Cc: <dansheedy@gmx.net>; <ccielab@groupstudy.com>
Sent: Thursday, July 22, 2004 3:53 PM
Subject: Re: CAn Ping but not telnet /

> Exactly what I was thinking. If you turn on debug ip icmp on the far
> router, then ping it, you should see the responses. If not, you may not be
> pinging what you think you're pinging.
>
> Also I don't think it's an MTU issue. That would only come into play if
the
> packets were big enough to hit the MTU. Setting up a telnet connection is
> only going to use small packets. You would however have problems if for
> example you did a sh run, which would send lots of data in large packets.
>
> -Tim Fletcher
>
> At 10:19 AM 7/21/2004, MADMAN wrote:
> > I haven't read all the posts so sorry if I'm rehashing. I have seen
> > this before and the issue was the device you were pinging was not what
> > you thought it was. Try changing the IP addresses of the problem
devices
> > if this is possible and a traceroute may help to confirm your actually
> > taking the path you would expect.
> >
> > Dave
> >
> >W Walla wrote:
> >
> >>Okay, well I learned from your replies, so thank you.
> >>But, as far as routing, I CAN ping from A Lan to C Lan right though the
B
> >>router... Just not telnet.
> >>I feel like it is an ACL or Firewall somewhere but there are not any
that
> >>I can see or have been told about. Also, None of the routers have ACL's
> >>applied. Is it possible that they have some legacy ACL floating around
> >>in their configs that is not showing up on the saved and running
configs?
> >>How would I clear that sort of possiblity short of rebooting all of
them?
> >>Thanks.



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