From owner-freebsd-stable Wed Jan 16 21:35:30 2002 Delivered-To: freebsd-stable@freebsd.org Received: from ns.itga.com.au (ns.itga.com.au [202.53.40.210]) by hub.freebsd.org (Postfix) with ESMTP id 9DD1037B402 for ; Wed, 16 Jan 2002 21:35:25 -0800 (PST) Received: from lightning.itga.com.au (lightning.itga.com.au [192.168.71.20]) by ns.itga.com.au (8.9.3/8.9.3) with ESMTP id QAA57569; Thu, 17 Jan 2002 16:35:19 +1100 (EST) (envelope-from gnb@itga.com.au) Received: from lightning.itga.com.au (localhost [127.0.0.1]) by lightning.itga.com.au (8.9.3/8.9.3) with ESMTP id QAA03202; Thu, 17 Jan 2002 16:35:19 +1100 (EST) Message-Id: <200201170535.QAA03202@lightning.itga.com.au> X-Mailer: exmh version 2.4 05/15/2001 with nmh-1.0.4 From: Gregory Bond To: Peter Jeremy Cc: freebsd-stable@FreeBSD.ORG Subject: Re: NTP packet routing problem In-reply-to: Your message of Thu, 17 Jan 2002 15:31:41 +1100. Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Thu, 17 Jan 2002 16:35:18 +1100 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG I've seen similar problems with PPP links over ssh - the link comes up, but on the PPP host the route to the remote end is via the ether interface. This is true for all pkts, not just ntp (which doesn't run over this particular link). You can fix it by deleting a static route on the ppp host, and it all starts working again. I _think_ this is caused by ppp not removing routes it adds before the tunX interface goes down, and then the kernel re-binds the route via a seemingly viable non-down interface (i.e. the default route), and won't re-bind it when the tunX interface comes up. But it happens rarely so I've not nailed down the exact circumstances. Yours sounds like the same problem, but the kill-&-restart ntp works because killing it releases the last usecount on the bogus route, so it gets dropped and then recreated properly when you restart ntp. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message