Joe,
I just bought the CCIE StudyGuide by Roosevelt Giles.. Excellent book with
some dumb mistakes but still an excellent book. It includes a CD with the
book that has all kinds of goodies, including sniffer traces for everything
in OSPF you could ever want... He put the traces in PDF format.. I'd send
them to you but I think that would be a copyright no no. The book was only
$40 something and well worth it..
Cory
-----Original Message-----
From: Joe Dewberry [mailto:[EMAIL PROTECTED]]
Sent: Friday, February 23, 2001 12:25 PM
To: [EMAIL PROTECTED]
Subject: Re: IP Protocol 89?
Hey....does anybody have a net xray .cap file they could post to the group?
All of the networks I have seen have NO OSPF! I'd like a chance to run it
thru a sniffer and see the traffic patterns, decodes etc....
""Kane, Christopher A."" <[EMAIL PROTECTED]> wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> In trying to understand OSPF in much more detail, I am reading RFC 2328.
> Several times Mr. Moy refers to OSPF as " IP Protocol 89". I checked the
> "RFC/Port Number" page that I reference often
> (http://www.networksorcery.com/enp/default0301.htm) and found that indeed
> OSPF is IP Protocol 89. I have not seen this before. Sure, I've worked
with
> TCP/UDP port numbers, but this is the first time I've paid attention to
the
> fact that the protocols themselves have numbers too. This is interesting.
>
> Should I look at 89 as a number that can be manipulated as I would 23
> (telnet) or 69 (tftp)? Can someone explain where these numbers are used?
Are
> they found in headers? As networkers, are we concerned with these numbers?
> Does anyone commonly filter based on a protocol's number? Or is getting
this
> granular an exercise in futility for a network engineer?
>
> Thanks,
> Chris
>
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