From owner-freebsd-questions Thu Feb 27 06:14:55 1997 Return-Path: Received: (from root@localhost) by freefall.freebsd.org (8.8.5/8.8.5) id GAA28197 for questions-outgoing; Thu, 27 Feb 1997 06:14:55 -0800 (PST) Received: from Campino.Informatik.RWTH-Aachen.DE (campino.Informatik.RWTH-Aachen.DE [137.226.116.240]) by freefall.freebsd.org (8.8.5/8.8.5) with ESMTP id GAA28178 for ; Thu, 27 Feb 1997 06:14:47 -0800 (PST) Received: from gil.physik.rwth-aachen.de (gilberto.physik.rwth-aachen.de [137.226.31.2]) by Campino.Informatik.RWTH-Aachen.DE (RBI-Z-5/8.6.12) with ESMTP id PAA03048; Thu, 27 Feb 1997 15:15:00 +0100 (MET) Received: (from kuku@localhost) by gil.physik.rwth-aachen.de (8.8.4/8.6.9) id PAA18883; Thu, 27 Feb 1997 15:21:05 +0100 (MET) From: Christoph Kukulies Message-Id: <199702271421.PAA18883@gil.physik.rwth-aachen.de> Subject: Re: forwarding broadcast packets between interfaces In-Reply-To: <199702271404.GAA04752@root.com> from David Greenman at "Feb 27, 97 06:04:34 am" To: dg@root.com Date: Thu, 27 Feb 1997 15:21:04 +0100 (MET) Cc: kuku@gilberto.physik.RWTH-Aachen.DE, dwhite@resnet.uoregon.edu, kmitch@weenix.guru.org, questions@freebsd.org Reply-To: Christoph Kukulies X-Mailer: ELM [version 2.4ME+ PL28 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-questions@freebsd.org X-Loop: FreeBSD.org Precedence: bulk > >> On Wed, 26 Feb 1997, Keith Mitchell wrote: > >> > >> > Is there any way to forward broadcast packets between interfaces?? > >> > > >> > I would like to be able to browse the windows machines on the other side > >> > of the gateway with a windows machine behind the gateway. The problem is > >> > the windows machine doesn't get the broadcasts so it doesn't know they are > >> > there. Otherwise, it can connect to them fine. It is using Netbios over > >> > TCPIP (NetBT). > >> > > >> > Also, it would be nice if I could echo the rwho packets to the local subnet > >> > as well. > >> > >> Perhaps; try setting gateway=YES in /etd/sysconfig then add the proper > >> routes. > > > >No, this won't work. broadcasts are UDP packets which are not routed by I should have said: "Browsing in samba is done by UDP broadcasts...." > >a gateway (normally). There may be a way to tell the kernel (with an option) > >to do UDP routing. I remember that Garrett (or David Greenman) once gave me > >that tip. > > Broadcasts have nothing to do with UDP packets other than a UDP packet, > like any other IP packet, may or may not be sent to a broadcast address. > It is true that packets sent to the broadcast address are not routed through > the gateway, and aside from creative mis-configuration, there isn't any way > you can get the gateway to pass them through, either. What is this 'creative misconfiguration' then? > > -DG > > David Greenman > Core-team/Principal Architect, The FreeBSD Project > -- Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de