Date: Thu, 08 Jul 1999 20:58:04 +0300 From: =?koi8-r?Q?=E1=CE=C4=D2=C5=CA=20=F7=2E=20=EF=CC=C5=CA=CE=C9=CB?= (Andy V. Oleynik) <andyo@prime.net.ua> To: dtougas@converging.net Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Networking problems... Message-ID: <3784E6AB.CAC4082B@prime.net.ua> References: <D1378A34D8E2D211831900105A99D3FE06D1AE@BDC>
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Run tcpdump if U have bpfilter configured or log all packets using ipfw to see what is on the interface. But rather be sure ur ISP have and U have properly functional devices on both end. Damien Tougas wrote: > I sent this message out once before, but I'm not sure if it actually went > out... > > Hello, > > We have been experiencing an ineteresting network problem, I'm not exactly > sure what it is rooted > in, but I thought I would ask around just in case it is related to somthing > in FreeBSD. > > We have two servers directly connected to the internet through an ADSL > connection, one is running > FreeBSD 3.1, the other is running NT Server 4.0. The FreeBSD server is our > internet http and mail > server, the NT server is acting as a gateway to our internal network running > Microsoft Proxy. > > Frequently (at least once a day) the FreeBSD server will lose contact with > the outside world. What I > mean by this is that nobody ouside of our subnet can access it, not even > ping works. While this > occurs, we can still ping the NT server from the outside (verifying that the > ADSL still works), and > we can still access the FreeBSD server from within the subnet without any > problems. After an hour > or so, the problem clears itself up and the FreeBSD server goes live again. > > I have noticed this happen on several occasions while using ssh to access > the FreeBSD server from > home. I would be working, lose my connection and no longer have any contact > with the server for > about an hour, then it would mysteriously reappear. > > We have also observed that when we lose outside contact with the server, if > we reboot it, it comes back > immediately, indicating that the problem is likely related to some server > configuration issue. > > I know that this problem could be related to anything, but any insight that > could be offered would be > greatly appreciated. > > Thanks. > > Damien Tougas > Converging Technology Solutions, Inc. > 10148 - 73 Street > Edmonton, Alberta T6A 2W9 > Phone: (780) 469-1679 > Fax: (780) 461-5127 > mailto:dtougas@converging.net > http://www.converging.net > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-questions" in the body of the message -- Andy V. Oleynik (When U aim for perfection, U discover it's a moving target ö80) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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