From owner-freebsd-net Tue Dec 28 17:51:23 1999 Delivered-To: freebsd-net@freebsd.org Received: from tango.SoftHome.net (tango.SoftHome.net [204.144.231.49]) by hub.freebsd.org (Postfix) with SMTP id 2A1EF15127 for ; Tue, 28 Dec 1999 17:51:21 -0800 (PST) (envelope-from fgont@softhome.net) Received: (qmail 3654 invoked by uid 417); 29 Dec 1999 01:57:49 -0000 Received: from unknown (HELO over) (200.51.58.184) by smtpb.softhome.net with SMTP; 29 Dec 1999 01:57:49 -0000 Message-Id: <.19991228225250.00968e20@pop.softhome.net> X-Sender: fgont@pop.softhome.net X-Mailer: QUALCOMM Windows Eudora Pro Version 4.2.0.58 Date: Tue, 28 Dec 1999 22:55:19 -0300 To: freebsd-net@FreeBSD.ORG From: Fernando Ariel Gont Subject: "Identification field" at the IP header Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hi! I've read that in some implementations, the "Identification field" at the IP header is incremented by the TCP layer, and NOT by the IP layer. I've read that the "idea" of the TCP/IP protocol suit is to have several layers, which are "independent" of each other. That means, the application (FTP, for example) passes its data to the next layer (TCP), then TCP encapsulates it, adding its header, then TCP passes its data to the IP layer, which encapsulates its.... and so on... But, keeping in mind what I mentioned above, it seems to me that that "type of implementation" goes against the former idea of the TCP/IP protocol suite. I mean, I'd found it more logical if the "Identification field" was incremented by the IP layer, and NOT by the TCP layer Am I wrong? Best regards, Fernando Ariel Gont E-mail: fgont@softhome.net web site: http://members.xoom.com/gont/ --- "Con las computadoras crearemos una civilizacion de estupidos tecnologicos, y una elite se ira quedando con todo. Cuando digo elite me refiero a gente como yo, que puede leer." - Ray Bradbury, escritor To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message