From owner-freebsd-current Fri Jan 29 17:23:35 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id RAA19191 for freebsd-current-outgoing; Fri, 29 Jan 1999 17:23:35 -0800 (PST) (envelope-from owner-freebsd-current@FreeBSD.ORG) Received: from dingo.cdrom.com (dingo.cdrom.com [204.216.28.145]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id RAA18999; Fri, 29 Jan 1999 17:23:31 -0800 (PST) (envelope-from mike@dingo.cdrom.com) Received: from dingo.cdrom.com (localhost.cdrom.com [127.0.0.1]) by dingo.cdrom.com (8.9.1/8.8.8) with ESMTP id RAA03574; Fri, 29 Jan 1999 17:19:14 -0800 (PST) (envelope-from mike@dingo.cdrom.com) Message-Id: <199901300119.RAA03574@dingo.cdrom.com> X-Mailer: exmh version 2.0.2 2/24/98 To: Christopher Masto cc: hardware@FreeBSD.ORG, current@FreeBSD.ORG Subject: Re: Network/ARP problem? Maybe pn driver? In-reply-to: Your message of "Fri, 29 Jan 1999 17:39:22 EST." <19990129173922.A29551@netmonger.net> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 29 Jan 1999 17:19:14 -0800 From: Mike Smith Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > I hope I'm not just being really stupid, but I think there's a problem > somewhere. If it's a configuration error on my part, then I think I'd > better take a vacation, considering what my job is supposed to be. > > Anyway, I have a machine that is exhibiting a weird network problem. > My guess is that ARP is not working, or perhaps something that ARP > depends on (broadcasts?) is not working. > > The symptom is, quite simply, that computer A (this new one) is not > able to communicate with any other computers.. until those other > computers communicate with A. This usually means that you have the netmask wrong, so broadcasts don't work (wrong destination address). When someone else talks to the misconfigured machine, they create an ARP cache entry, which allows the victim to "see" them (until it times out). -- \\ Sometimes you're ahead, \\ Mike Smith \\ sometimes you're behind. \\ mike@smith.net.au \\ The race is long, and in the \\ msmith@freebsd.org \\ end it's only with yourself. \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message