Date: Wed, 7 Oct 1998 17:01:28 -0700 (PDT) From: Archie Cobbs <archie@whistle.com> To: mike@smith.net.au (Mike Smith) Cc: andre.albsmeier@mchp.siemens.de, hackers@FreeBSD.ORG Subject: Re: How to send data between two network cards directly? Message-ID: <199810080001.RAA23283@bubba.whistle.com> In-Reply-To: <199810071601.JAA00589@dingo.cdrom.com> from Mike Smith at "Oct 7, 98 09:01:12 am"
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Mike Smith writes: > > > > I have two machines connected with two network cards directly > > > > together via 10Base2. I would like to send data from one > > > > machine two the other without doing IP or any other > > > > protocol. > > > > > > You have to have some protocol, or you can't tell what any given item > > > of data is. > > > > OK, maybe I desribed it in a wrong way. I would like to use > > the most basic protocol that is available. No overhead, > > no error correction, no nothing... > > You can't do this. Ethernet implicitly involves several protocols, > each with their own overheads and error correction. Not true.. Ethernet is just synchronous HDLC with a 32 bit checksum. You can send and receive raw Ethernet frames using bpf(4). -Archie ___________________________________________________________________________ Archie Cobbs * Whistle Communications, Inc. * http://www.whistle.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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