Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!sundc!pitstop!sun!amdcad!ames!ucbcad!ucbvax!UDEL.EDU!Mills From: Mills@UDEL.EDU Newsgroups: comp.protocols.tcp-ip Subject: Re: On broadcasts, congestion and gong Message-ID: <8710272128.aa11618@Huey.UDEL.EDU> Date: Tue, 27-Oct-87 21:28:13 EST Article-I.D.: Huey.8710272128.aa11618 Posted: Tue Oct 27 21:28:13 1987 Date-Received: Sat, 31-Oct-87 00:43:28 EST Sender: daemon@ucbvax.BERKELEY.EDU Organization: The ARPA Internet Lines: 18 Mike, Your scenario about unrecognized broadcast packets and sneak paths via default gateways is exactly what happened in the recent case where net 128.220 RIP packets crashed and burned at linkabit-gw. Fortunately, the RIP packets did not survive the airspace to NSNET client networks, where the collateral damage might have been spectacular. The recent turbulence when net 0.0.0.0 was accidently sqwawked to the corespeakers and evidently was squawked right back to the Kirton code on one or more systems seems to confirm your suspicion that a "default" sneaked via EGP can run amok on the local net. This should be fixed. My comment about RFC-1009 compliance was also intended for you. Can you remark on the compliance of 4.3, lack of it or reasons wherefore? Dave