Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Posting-Version: version B 2.10.2 8/7/84; site ucbvax.ARPA Path: utzoo!watmath!clyde!burl!ulysses!ucbvax!info-vax From: info-vax@ucbvax.ARPA Newsgroups: fa.info-vax Subject: Re: Pinging gateways Message-ID: <2494@ucbvax.ARPA> Date: Fri, 12-Oct-84 08:39:24 EDT Article-I.D.: ucbvax.2494 Posted: Fri Oct 12 08:39:24 1984 Date-Received: Sat, 13-Oct-84 06:55:12 EDT Sender: daemon@ucbvax.ARPA Organization: University of California at Berkeley Lines: 15 From: Dan GrimWe saw exactly the same behavior here at Delaware when machines on two separate local nets could not connect in one direction when they could in the other. Our problem turned out to be that one of our multiply connected machines (arpa and local ethernet) was sending its arpa internet address as the source address in the IP packets and the machine on the other local net apparently had the wrong routes installed to reply. That machine could reach other arpa hosts however so it is not as simple a problem as it may seem. The outcome is that routing on intermediate hosts seemed to be able to cause the assymetric behavior. Dan Grim Dept of Electrical Engineering University of Delaware