Date: Sun, 8 Oct 2000 13:52:09 -0700 From: "Crist J . Clark" <cjclark@reflexnet.net> To: Phil Mummert <the1600boy@hotmail.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: recurring natd error message Message-ID: <20001008135209.Y25121@149.211.6.64.reflexcom.com> In-Reply-To: <LAW-F81FJRrQEZYtV8r0000d566@hotmail.com>; from the1600boy@hotmail.com on Sun, Oct 08, 2000 at 01:44:12PM -0400 References: <LAW-F81FJRrQEZYtV8r0000d566@hotmail.com>
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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 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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