From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ralf Spenneberg Subject: Re: Newbie netfi;ter question Date: 20 May 2003 09:48:24 +0200 Sender: netfilter-admin@lists.netfilter.org Message-ID: <1053416904.2024.83.camel@kermit.spenneberg.de> References: <3EBD073B.2050603@verizon.net> Mime-Version: 1.0 Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <3EBD073B.2050603@verizon.net> Errors-To: netfilter-admin@lists.netfilter.org List-Help: List-Post: List-Subscribe: , List-Id: List-Unsubscribe: , List-Archive: Content-Type: text/plain; charset="iso-8859-1" To: Ken Kachnowich Cc: Netfilter Am Sam, 2003-05-10 um 16.05 schrieb Ken Kachnowich: > Hi, >=20 > 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! >=20 > 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 --=20 Ralf Spenneberg RHCE, RHCX Book: Intrusion Detection f=FCr Linux Server http://www.spenneberg.com IPsec-Howto http://www.ipsec-howto.org Honeynet Project Mirror: =20 http://honeynet.spenneberg.org