[37553] in North American Network Operators' Group
Re: To CAIS Engineers - WAKE UP AND TAKE CARE OF YOUR CUSTOMERS
daemon@ATHENA.MIT.EDU (Brett Frankenberger)
Tue May 15 15:15:09 2001
Message-Id: <200105151909.OAA16704@rbfux.rbfnet.com>
To: smcmahon@eiv.com (Shawn McMahon)
Date: Tue, 15 May 2001 14:09:30 -0500 (CDT)
From: "Brett Frankenberger" <rbf@rbfnet.com>
Cc: nanog@merit.edu
In-Reply-To: <20010515130516.B3063@eiv.com> from "Shawn McMahon" at May 15, 2001 01:05:16 PM
MIME-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Transfer-Encoding: 7bit
Errors-To: owner-nanog-outgoing@merit.edu
>
> > but...). Now, if 1.2.3.4 has proper matching forward/reverse DNS lookups,=
> I don't see how people behind someone else's NAT pose a problem.
>
> Remember, we're talking about matching hostnames to reverse lookups.
My understanding is that we are talking about:
(a) Doing a reverse lookup on the IP address, and getting a name.
(b) Doing a forward lookup on that name, and making sure you get the
right IP address back.
That works fine with or without NAT.
The hostname that is configured on the actual workstation is
irrelevant. (And is also unknwon (to the target of the connection) for
many protocols.)
-- Brett
