Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!columbia!rutgers!ucla-cs!zen!ucbvax!CU20B.COLUMBIA.EDU!sy.Ken From: sy.Ken@CU20B.COLUMBIA.EDU (Ken Rossman) Newsgroups: comp.protocols.tcp-ip Subject: Re: Broadcast Storms Message-ID: <12329849264.136.SY.KEN@CU20B.COLUMBIA.EDU> Date: Thu, 27-Aug-87 11:24:52 EDT Article-I.D.: CU20B.12329849264.136.SY.KEN Posted: Thu Aug 27 11:24:52 1987 Date-Received: Sat, 29-Aug-87 12:11:34 EDT References: <8708270922.AA06419@topaz.rutgers.edu> Sender: daemon@ucbvax.BERKELEY.EDU Organization: The ARPA Internet Lines: 16 X.Y.255.255 is the new form. X.Y.0.0 is the old form. Unfortunately it is easier to convince new software to use the old than old software to use the new. So until everybody updates, it may be easiest to stick with the old format. The decision is in fact made in the kernel, not rwho. You use ifconfig to choose the broadcast address. Ifconfig is a program that primarily does system calls to set up various options in the kernel. I guess the reason I asked about this was because we've seen those broadcast storms here a number of times, and so apparently have other sites, yet in answer to this problem, folks keep saying the "fix" is to kill the rwho daemon, as though rwho was directly responsible for net storms. Rwho is doing its job properly -- it's the kernal that's goofing up. Rwho ain't the only thing around that's gonna cause ARP broadcast anyway, is it? /Ken -------