From owner-freebsd-stable  Wed Apr 21 20:26: 1 1999
Delivered-To: freebsd-stable@freebsd.org
Received: from alecto.physics.uiuc.edu (alecto.physics.uiuc.edu [130.126.8.20])
	by hub.freebsd.org (Postfix) with ESMTP id D62DC15854
	for <stable@freebsd.org>; Wed, 21 Apr 1999 20:25:45 -0700 (PDT)
	(envelope-from igor@alecto.physics.uiuc.edu)
Received: (from igor@localhost)
	by alecto.physics.uiuc.edu (8.9.0/8.9.0) id WAA25047;
	Wed, 21 Apr 1999 22:23:09 -0500 (CDT)
From: Igor Roshchin <igor@physics.uiuc.edu>
Message-Id: <199904220323.WAA25047@alecto.physics.uiuc.edu>
Subject: Re: netstat -r
In-Reply-To: <000001be8c6a$12640780$021d85d1@whenever.youwant.to> from "David Schwartz" at "Apr 21, 1999  7:44:41 pm"
To: davids@webmaster.com (David Schwartz)
Date: Wed, 21 Apr 1999 22:23:09 -0500 (CDT)
Cc: stable@freebsd.org
X-Mailer: ELM [version 2.4ME+ PL43 (25)]
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Content-Transfer-Encoding: 7bit
Sender: owner-freebsd-stable@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG

> > Our FreeBSD server has been in operation for about a year and it just
> > runs like a charm.  Every so often
> > I do "netstat -r" just to make sure that I'm still being the bandwidth
> > hog on our network.  Today, however,
> > instead of the customary inverse-mapping that I get from the /etc/hosts
> > file I got a note on each listing  saying:
> >
> > 	"read-rfc1918-for-details.iana.net" followed by our Private IP
> > Address and Ethernet Address
> >
> > What could have changed to create this output?  We have always been
> > using RFC 1918 addressing
> > along with NAT.
> 
> 	It's telling you that you tried to reverse resolve an IP address that was
> private without configuring your name server to reverse them correctly.
> 
> 	DS
> 

I don't think so.
As one of the previous responders noted, for some reason,
today at least several hosts in 10.x.x.x zone had the reverse lookup
set to show read-rfc1918-for-details.iana.net

I had seen it myself for our regional router (or whatever it is) -
today mid-day, then it turned back to be nameless again.

It looks like somebody at IANA was tweaking (I hope not hacking :) 
the DNS for 10.0.0.1 or its part.

IgoR


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-stable" in the body of the message