From owner-freebsd-mobile Wed Jul 18 9:44:17 2001 Delivered-To: freebsd-mobile@freebsd.org Received: from quack.kfu.com (quack.kfu.com [205.178.90.194]) by hub.freebsd.org (Postfix) with ESMTP id 2A6CD37B401 for ; Wed, 18 Jul 2001 09:44:14 -0700 (PDT) (envelope-from nsayer@quack.kfu.com) Received: from medusa.kfu.com (medusa.kfu.com [3ffe:1200:301b:0:290:27ff:fed1:576b]) by quack.kfu.com (8.11.3/8.11.3) with ESMTP id f6IGi7J95400 (using TLSv1/SSLv3 with cipher EDH-RSA-DES-CBC3-SHA (168 bits) verified OK); Wed, 18 Jul 2001 09:44:13 -0700 (PDT) (envelope-from nsayer@quack.kfu.com) From: Nick Sayer Received: from kfu.com (localhost.kfu.com [127.0.0.1]) (authenticated) by medusa.kfu.com (8.11.4/8.11.3) with ESMTP id f6IGi6v11378; Wed, 18 Jul 2001 09:44:07 -0700 (PDT) (envelope-from nsayer@kfu.com) Received: from 205.178.90.249 (SquirrelMail authenticated user nsayer) by medusa.kfu.com with HTTP; Wed, 18 Jul 2001 09:44:07 -0700 (PDT) Message-ID: <1158.205.178.90.249.995474647.squirrel@medusa.kfu.com> Date: Wed, 18 Jul 2001 09:44:07 -0700 (PDT) Subject: Re: Details ... (please confirm or deny pccard bridging) To: In-Reply-To: <20010718111734.N49286@numachi.com> References: <20010718111734.N49286@numachi.com> Cc: , X-Mailer: SquirrelMail (version 1.1.2) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Filter-Version: 1.3 (medusa.kfu.com) Sender: owner-freebsd-mobile@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org > On Wed, Jul 18, 2001 at 02:23:43AM -0600, Joesh Juphland wrote: >> >> This solved it. Thanks a lot. >> >> > >> >Joesh Juphland wrote: >> >You must use sysctl -w net.link.ether.bridge_refresh=1 whenever an >> >interface appears or disappears after boot. > > Cool! Other than the source, where is this option documented? :) I am not sure if it ever was. In current, IIRC the mechanism is automatic and the automaticness just never got MFCed. > And: can any bridging work over USB NICs? Bridging will work over any interface that can transmit and receive promiscuously (so far as I know, none of the 802.11b cards can do it, unfortunately). Whether it works _well_ or not depends on the efficiency of the interface, which argues strongly in favor of PCI cards with excellent DMA capabilities. This almost totally disqualifies pccard interfaces because they are incapable of DMA and argues against USB interfaces because of the low bandwidth of USB combined with the large amount of CPU handholding that USB interfaces need (hint: USB is largely a polled system). Of course, with a laptop you often don't have a choice. IMNSHO, this form of bridging is deprecated in favor of netgraph bridging, which I think is a bit easier to configure. See share/examples/netgraph/ether.bridge . To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message