From: Ralf Spenneberg <lists@spenneberg.org>
To: Ken Kachnowich <ken.kachnowich@verizon.net>
Cc: Netfilter <netfilter@lists.netfilter.org>
Subject: Re: Newbie netfi;ter question
Date: 20 May 2003 09:48:24 +0200 [thread overview]
Message-ID: <1053416904.2024.83.camel@kermit.spenneberg.de> (raw)
In-Reply-To: <3EBD073B.2050603@verizon.net>
Am Sam, 2003-05-10 um 16.05 schrieb Ken Kachnowich:
> Hi,
>
> I have created a very simple module to use netfilters. I
> display some info from the sk_buff structures.
> The protocol field always has an 8 in it.
If you are reading the ethernet header, the protocol field is supposed
to be 8!
>
> What does the 8 mean? I would expect this to indicate this is
> an IP packet of some type, but so far I have not found a header
> or any docs that explains it. Where would be a good place for me
> to find these things out (please don't say read the kernel source).
8 means IP (in the ethernet header).
Cheers,
Ralf
--
Ralf Spenneberg
RHCE, RHCX
Book: Intrusion Detection für Linux Server http://www.spenneberg.com
IPsec-Howto http://www.ipsec-howto.org
Honeynet Project Mirror:
http://honeynet.spenneberg.org
prev parent reply other threads:[~2003-05-20 7:48 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-05-10 14:05 Newbie netfi;ter question Ken Kachnowich
2003-05-20 7:48 ` Ralf Spenneberg [this message]
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