From: Daniel Sheedy (dansheedy@gmx.net)
Date: Wed Jul 21 2004 - 02:11:03 GMT-3
Hi Walla,
Have you checked the MTU tfrom Lan A to Lan C? I had this problem from
Australia to New Zealand once. Could do anything with tiny tiny packets,
but as soon as it got bigger it timed out. It was a black hole in the ISP
network combined with a smaller MTU.
Do a ping from lan A to a computer on Lan C with the 'dont defragment' bit
set.
Also, what does it say, when you try to do a telnet? Does it just timeout?
Or do you get a 'connection refused' message?
Is there an access group under the line vty perchance?
Is there NAT /PAT involved anywhere? Is so, is it passing through
everything properly?
Let us know what you find...
Dan
----- Original Message -----
From: "W Walla" <wallafly@hotmail.com>
To: <ccielab@groupstudy.com>
Sent: Wednesday, July 21, 2004 7:00 AM
Subject: CAn Ping but not telnet /
> Not as easy as it sounds. I can ping across my wan from my lan through a
> remote router and across that wan to another LAN. 0--0--0 A--B--C <--
like
> this: From a through b to c's LAN. However! I can not telnet from A's
LAN
> into C's LAN.
>
> From A's LAN I can telnet and remote desktop into B's LAN.
> From B's LAN I can Telnet and Remote desktop into C's LAN.
> ButI can not Telnet or remote desktop from A's LAN into C's LAN through
> Router B!
>
> I do not have any acl's applied on any routers... There used to be some
but
> they have been unapplied from any and all interfaces. I am not aware of
any
> Firewalls in between. WhenI trace router from Router A to Router C it
hits
> all appropriate interfaces along the way... Not like I could see a
firewall
> anyway probably..
>
> There is also some ospf and some statics on these routers...
>
> Anything jump out at anyone as the possible causes? I have reasearched
this
> for a full 2 days now and desperately need access.
>
> Help!
>
> Thanks!
>
> wallafly@hotmail.com
>
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