Date: Mon, 09 Oct 2000 16:17:23 EDT From: "Phil Mummert" <the1600boy@hotmail.com> To: cjclark@alum.mit.edu Cc: freebsd-questions@FreeBSD.ORG Subject: Re: recurring natd error message Message-ID: <LAW-F852UCPvum0P0GL0000e0e2@hotmail.com>
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I looked at some tcpdumps, but in all cases none of the packets were lost. The only thing fishy was an occasional arp who-has tell 0.0.0.0 I am having other problems that may be related. On bootup, I get many error messages about another MAC address using my IP (0.0.0.0). This MAC is not one of my interfaces. I assume my dhcp lease is perhaps conflicting, but my attempts to renew it don't seem to change anything. Can you explain how to renew a dhcp lease, what the deal with 0.0.0.0 is, and if this even relates to my initial problem. >From: "Crist J . Clark" <cjclark@reflexnet.net> >Reply-To: cjclark@alum.mit.edu >To: Phil Mummert <the1600boy@hotmail.com> >CC: freebsd-questions@FreeBSD.ORG >Subject: Re: recurring natd error message >Date: Sun, 8 Oct 2000 13:52:09 -0700 > >On Sun, Oct 08, 2000 at 01:44:12PM -0400, Phil Mummert wrote: > > I have a FreeBSD box with a dhcp connection to the net. > > I am using natd to allow net access from my own lan, behind the bsd box. > > It appears to be working properly. > > However, I constantly receive the following message from BSD: > > myhostname natd[133]: failed to write packet back (Host is down) > > (This is followed by messages like, "last message repeated 319 times", >etc) > >This error means that you are trying to send a packet that has been >processed by natd to a machine on a local network. However, the >destination machine does not seem to be alive (your machine is not >able to get the MAC address), i.e. that host seems down. The easiest >way to try to debug this that I am aware is to first determine what >address your machine is trying to reach. Listen on the interfaces for >ARP frames, > > # tcpdump -i <interface> arp > >And watch for ones from your machine that go unanswered. Then figure >out why it is looking for that machine or why it is not getting a >response from it. >-- >Crist J. Clark cjclark@alum.mit.edu _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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