From: damien (damien@xxxxxxxxxxx)
Date: Sat Sep 02 2000 - 10:29:43 GMT-3
No I am not referring to not being able to ping your own serial
interface........
I am aware of the issue with no being able to ping local frame-relay
interfaces, without map statements, I was under the impression that
serial ptp using whatever encap, the packet is sent to the remote end
and returned...........
For ethernet, I am not 100% sure, my guess is in
software...............but nobody has confirmed.............I am just
writing a Trouble Shooting doc for a Client and started explaining
about pinging local interfaces, what exactly it tells you, but was not
sure about the Ethernet aspect of things........
----- Original Message -----
From: Brian Hescock
To: Roger Wang
Cc: damien ; ccielab@groupstudy.com
Sent: Friday, September 01, 2000 6:54 PM
Subject: Re: Somebody must know the answer
Damiem,
I assume you're referring to not being able to ping your own
serial interface but you can the ethernet interface? There's an
"Open Forum" question/answer on this on CCO, basically, the ping on
the serial interface is sent out over the interface, it doesn't
answer it locally.
Brian
Roger Wang wrote:
I sometimes wonder that myself, but I don't know the answer. What
I do know is that it has to do with layer 2 encap types. For
example, frame relay interfaces - if it's a point-to-point
sub-interface, a "map" statement won't be necessary and can't
(frame-relay interface-dlci) to ping the local interface;
otherwise, you'll need a "map" statement to the local interface in
order to ping it (packets go to the other end and back). The same
goes to X25 encap, I think.HTH,Rog
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
damien
Sent: Friday, September 01, 2000 1:19 PM
To: ccielab@groupstudy.com
Subject: Somebody must know the answer
3rd time to post....!!! Can anybody tell me exactly what happens in
terms of the IP stack on the
Router, when you ping an Ethernet local interface and a Serial ptp
Interface.........i.e. the packet is generated by the Router to
ping its
own interface.........where exactly the packet goes........or
software
instructions that are carried out..........
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