From owner-freebsd-mobile Wed Nov 24 17:53:27 1999 Delivered-To: freebsd-mobile@freebsd.org Received: from hh.alink.net (hh.alink.net [207.135.127.85]) by hub.freebsd.org (Postfix) with ESMTP id 82E1115150 for ; Wed, 24 Nov 1999 17:53:24 -0800 (PST) (envelope-from mab@zildjian.hq.alink.net) Received: from zildjian.hq.alink.net (lc.alink.net [207.135.127.87]) by hh.alink.net (8.9.3/8.9.3) with ESMTP id RAA02718; Wed, 24 Nov 1999 17:53:14 -0800 (PST) Received: (from mab@localhost) by zildjian.hq.alink.net (8.9.3/8.9.3) id RAA55480; Wed, 24 Nov 1999 17:53:13 -0800 (PST) (envelope-from mab) From: Matt Braithwaite Reply-To: matt@braithwaite.net X-Attribution: mab X-Face: @fge8WW'#w^hZghU$,3gfTP2@56+jGR+wSn|.Ddh,5d6qi")q;sCrYh[W;z-]Q0avfG):{3&hq61!)x&&PUrp%upUD9v9bB2_bw-"0v(87+A`?=1+P`# To: Brad Karp Cc: freebsd-mobile@FreeBSD.ORG Subject: Re: STRIP (was Re: richochet modems) References: <199911250127.UAA11786@dominator.eecs.harvard.edu> Mime-Version: 1.0 (generated by tm-edit 7.108) Content-Type: text/plain; charset=US-ASCII Date: 24 Nov 1999 17:53:13 -0800 In-Reply-To: Brad Karp's message of "Wed, 24 Nov 1999 20:27:26 -0500 (EST)" Message-ID: <86g0xv49rq.fsf@zildjian.hq.alink.net> Lines: 41 X-Mailer: Gnus v5.6.45/XEmacs 21.1 - "Big Bend" Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Wed, 24 Nov 1999 20:27:26 -0500 (EST), Brad Karp said: > >> Sorry, can you explain that a little more? Are you saying that given >> any two radios, you can set up a reliable byte stream between them >> using AT commands? > > Say you have two hosts, A and B, each with a Ricochet, MAC addresses > 0000-0001, and 0000-0002, respectively. > > B can tell its radio: > > ATS0=1 > > A can tell its radio: > > ATDT0000-0002 Wow, I had no idea they carried modem emulation to such extremes! ATS0=1, if anybody's out there who grew up with DSL, means ``answer'' the ``phone'' after one ``ring''. :-) > So my overall point is: for a single hop of PPP over Metricom, > there's no need to use STRIP at all. Unless, of course, you want multiple machines to be able to use the same gateway (PPP over a reliable byte stream only allows one machine at a time.). Also, STRIP probably uses precious bandwidth a little more efficiently than PPP does. (These are really just quibbles, of course. I'm not trying to defend STRIP against HUMR; just pointing out that STRIP is useful for a certain set of problems, though a smaller set.) > And if you want multi-access, or multi-hop, the central ARP server > STRIP requires makes HUMR more convenient. Yeah. I'm curious which has more users. I've never run into any Ricochet users who aren't using straight PPP. -- Matt Braithwaite Here in my car, I can only receive. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message