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Newsgroups: comp.unix.bsd.netbsd.misc Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!munnari.OZ.AU!news.ecn.uoknor.edu!feed1.news.erols.com!cpk-news-hub1.bbnplanet.com!news.bbnplanet.com!europa.clark.net!news.mathworks.com!uunet!in3.uu.net!194.77.0.15!news.gtn.com!klicman.de!ora.de!bad From: bad@ora.de (Christoph Badura) Subject: Re: Question on ipintr function Message-ID: <E718yn.Cz1@ora.de> Organization: Verlag O'Reilly References: <Pine.SOL.3.95.970313152838.28603A-100000@ector.cs.purdue.edu> Date: Fri, 14 Mar 1997 12:20:47 GMT Lines: 19 Xref: euryale.cc.adfa.oz.au comp.unix.bsd.netbsd.misc:5630 In <Pine.SOL.3.95.970313152838.28603A-100000@ector.cs.purdue.edu> Anshul Dhir <dhir@cs.purdue.edu> writes: >I am not able to understand how the router will deal with a packet that it >is supposed to broadcast on one of its local h/w networks, because acc. to >the code, as soon as it finds out that the packet is for itself ( by >comparing the packet's ip destination address to its interface addresses >, then the network addresses and finally with the 255.255.255.255 ) it >sends that packet to the upper layers and goes on to get the next packet. I'm not sure I understand what you're having a problem with. Routers are not supposed to forward broadcast messages except in a few special cases. Are you saying that directed broadcasts and "all subnets" broadcasts aren't forwarded? -- Christoph Badura Now available in print: Lion's Commentary on UNIX 6th Edition, with Source Code http://www.peer-to-peer.com/