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Date:      Sat, 11 Jan 2003 20:14:03 +0100 (CET)
From:      Marc Schneiders <marc@schneiders.org>
To:        Kevin Stevens <Kevin_Stevens@pursued-with.net>
Cc:        Lowell Gilbert <freebsd-questions-local@be-well.no-ip.com>, <freebsd-questions@FreeBSD.ORG>
Subject:   arplookup failed: host is not on local network( Re: adding some new IPs from a different subnet)
Message-ID:  <20030111200608.U57051-100000@voo.doo.net>
In-Reply-To: <C251CBAE-2590-11D7-8585-003065715DA8@pursued-with.net>

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On Sat, 11 Jan 2003, at 10:16 [=GMT-0800], Kevin Stevens wrote:

> I saw the note about the incorrect mask on the second 10. address; and
> agree that it needs fixing, but I don't think that was the source of
> the log messages.  I ran into the same thing when I had different NICS
> on different IP subnets on the same physical network some time ago -
> that's how I remembered the setting.  That's why there's a sysctl for
> it - depending on your configuration, it isn't actually an error.

I see the same error message since Dec 29 04:46:02 about an IP that
belongs to another of my servers, and which is not at all in the
configuration. Nor was the ifconfig changed at that time. Neither did
I rebuild the kernel or world at that time. The machine was not
rebooted at that time. So what??

However, to be completely honest, the IP has a PTR that is identical
with the PTR of one of the alias IPs on the machine. This did not
change either on Dec. 29.

Diagram

A 100.100.100.1		IN PTR papa.angry.com
  100.100.100.2 (alias) IN PTR host.domain.com
  100.100.100.3 (alias) IN PTR mama.angry.net

B 200.200.200.1		IN PTR host.domain.com

Now host A complains that the IP of host B is not on the local
network.

Please, enlighten me :-)


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