From owner-freebsd-net Tue Oct 15 9:58:37 2002 Delivered-To: freebsd-net@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 6FAF837B404 for ; Tue, 15 Oct 2002 09:58:36 -0700 (PDT) Received: from b.smtp-out.sonic.net (b.smtp-out.sonic.net [208.201.224.39]) by mx1.FreeBSD.org (Postfix) with SMTP id 83AC343EAF for ; Tue, 15 Oct 2002 09:58:34 -0700 (PDT) (envelope-from gharris@sonic.net) Received: (qmail 26644 invoked from network); 15 Oct 2002 16:58:34 -0000 Received: from turbo.sonic.net (208.201.224.26) by b.smtp-out.sonic.net with SMTP; 15 Oct 2002 16:58:34 -0000 Received: from quadrajet.sonic.net (adsl-209-204-185-65.sonic.net [209.204.185.65]) by turbo.sonic.net (8.11.6/8.8.5) with ESMTP id g9FGwXR08989; Tue, 15 Oct 2002 09:58:33 -0700 X-envelope-info: Received: (from guy@localhost) by quadrajet.sonic.net (8.9.3/8.9.3) id JAA00393; Tue, 15 Oct 2002 09:58:32 -0700 (PDT) (envelope-from gharris) Date: Tue, 15 Oct 2002 09:58:32 -0700 From: Guy Harris To: Bruce M Simpson , Harti Brandt , Craig Rodrigues , freebsd-net@FreeBSD.ORG Subject: Re: How to add bpf support to if_atmsubr.c? Message-ID: <20021015095832.B332@quadrajet.sonic.net> References: <20021014231305.H332@quadrajet.sonic.net> <20021015105452.GH6089@spc.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.4i In-Reply-To: <20021015105452.GH6089@spc.org>; from bms@spc.org on Tue, Oct 15, 2002 at 11:54:52AM +0100 Sender: owner-freebsd-net@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org On Tue, Oct 15, 2002 at 11:54:52AM +0100, Bruce M Simpson wrote: > This sounds very similar to the promiscuous cell receive option on ENI's > SpeedStream 5861 router. I found the raw hex cell output was essentially > a 4 byte ATM UNI header omitting the CRC byte, and the 48 bytes of the raw > AAL5 cell payload. Similar, but not the same; I doubt there's any hardware significance to the VPI/VCI part of the header, and the type field is probably put there by the driver. (Also, the DLPI interface supplies reassembled AAL5 PDUs, not raw cells; I don't know what it does for other AALs, except for the signalling AAL where it again supplies reassembled packets.) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-net" in the body of the message