From owner-freebsd-net@FreeBSD.ORG Thu Dec 25 12:58:18 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 4E837106564A; Thu, 25 Dec 2008 12:58:18 +0000 (UTC) (envelope-from Hartmut.Brandt@dlr.de) Received: from smtp-1.dlr.de (smtp-1.dlr.de [195.37.61.185]) by mx1.freebsd.org (Postfix) with ESMTP id D5E8C8FC12; Thu, 25 Dec 2008 12:58:17 +0000 (UTC) (envelope-from Hartmut.Brandt@dlr.de) Received: from [192.168.2.100] ([172.21.151.2]) by smtp-1.dlr.de with Microsoft SMTPSVC(6.0.3790.1830); Thu, 25 Dec 2008 13:58:15 +0100 Message-ID: <4953834E.3020100@dlr.de> Date: Thu, 25 Dec 2008 13:57:50 +0100 From: Hartmut Brandt User-Agent: Thunderbird 2.0.0.18 (Windows/20081105) MIME-Version: 1.0 To: Robert Watson References: <55f001c9639d$875f14ec$7202020a@internal.cacheflow.com> <4950F770.3090700@dlr.de> <495165D8.2070409@dlr.de> <495246C9.9090305@incunabulum.net> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-OriginalArrivalTime: 25 Dec 2008 12:58:15.0668 (UTC) FILETIME=[738C7B40:01C96690] Cc: Qing Li , "Li, Qing" , Bruce Simpson , freebsd-net@freebsd.org, freebsd-current@freebsd.org Subject: Re: NATM hardware available X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 25 Dec 2008 12:58:18 -0000 Robert Watson wrote: > On Wed, 24 Dec 2008, Bruce Simpson wrote: > >> Hartmut Brandt wrote: >> >>> In any case there is still an Todo on my side: the routing >>> information for NETNATM is currently lost somewhere between L2 and >>> L3 :-) I guess I come back to you in the new year to fix this >>> issue... Have to fetch my ATM equipment from the corner where it is >>> collecting dust to setup a testbed. >> >> Guys: >> >> Native NATM support would be nice, because it lets FreeBSD be used as >> a direct ADSL endpoint without an external ADSL router. >> >> I have a pair of ATM25 cards, an ATM25 crossover, and an >> ATM25-to-ADSL G.DMT modem bagged up ready to ship to someone who has >> the time and motivation to work on NATM. >> >> Also: I did have an ATM25 capable switch which I left at ICSI in >> Berkeley, I don't know where it is at the moment due to people >> movements. > > Do we have any of the necessary software parts to do simulated ATM > hardware similar to what if_tap does for Ethernet? Using the VIMAGE > stuff and virtual ATM hardware might open up the door to a more > accessible development and test environment. I did the NATM locking > work essentially "blind" due to a lack of test environment locally, > which seemed to work out, but a software test system would go a long way. Having at least a virtual interface would be nice. Should be fairly easy if only UBR (unspecified bit rate) is supported. harti