Date: Tue, 15 Oct 2002 09:58:32 -0700 From: Guy Harris <gharris@sonic.net> To: Bruce M Simpson <bms@spc.org>, Harti Brandt <brandt@fokus.gmd.de>, Craig Rodrigues <rodrigc@attbi.com>, freebsd-net@FreeBSD.ORG Subject: Re: How to add bpf support to if_atmsubr.c? Message-ID: <20021015095832.B332@quadrajet.sonic.net> In-Reply-To: <20021015105452.GH6089@spc.org>; from bms@spc.org on Tue, Oct 15, 2002 at 11:54:52AM %2B0100 References: <20021014231305.H332@quadrajet.sonic.net> <20021015105452.GH6089@spc.org>
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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
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