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Date:      Sat, 20 Oct 2001 21:53:16 -0400 (EDT)
From:      Jim Weeks <jim@siteplus.net>
To:        freebsd-isp@freebsd.org
Subject:   arplookup failed:
Message-ID:  <Pine.BSF.4.21.0110202137310.727-100000@veager.jwweeks.com>

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Would someone please check me on this.  I know this has been discussed
before and I want to make sure I understand correctly.

I am receiving the following error, 

Oct 20 21:16:21 server /kernel: arplookup XXX.XXX.XXX.XXX failed: host is
not on local network

Indeed the server issuing the request is not on the same subnet.  If I
understand arp correctly, the kernel is not able to respond to a mac
address not directly connected to the subnet of the responding machine.

After looking at the results of "tcpdump -n -e -p arp", I see a lot of
traffic from several subnets.  Should I be seeing arp requests other than
those initiated by my default gateway or other machines on the same
subnet?

Why would this machine be issuing request for interfaces connected to a
different subnet, and if it should, why isn't it directing the requests
to my default gateway?

Am I correct in assuming that this is a routing problem and not something
I can correct from my end?

Thanks in advance,

 --
Jim Weeks



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