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From: Joshua D. Drake <jd@commandprompt.com>
To: Steve Atkins <steve@blighty.com>
Cc: PostgreSQL Performance <pgsql-performance@postgresql.org>
Subject: Re: Best way to index IP data?
Date: Fri, 11 Jan 2008 15:52:11 -0800
Message-ID: <20080111155211.20933fc1@commandprompt.com> (raw)
In-Reply-To: <00045B34-A238-46B9-8641-C0A40C5CCCE5@blighty.com>
References: <36e682920801101541o7626bbddj428617144240c554@mail.gmail.com>
	<Pine.LNX.4.64.0801111025390.30762@localhost>
	<13179.1200064791@sss.pgh.pa.us>
	<20080111162747.GT5294@mathom.us>
	<24044.1200082058@sss.pgh.pa.us>
	<20080111212703.GU5294@mathom.us>
	<20080111213710.GD8260@alvh.no-ip.org>
	<20080111220235.GX5294@mathom.us>
	<20080111222403.GA7527@crankycanuck.ca>
	<1259C7B1-C948-4326-B827-849C64B61A16@blighty.com>
	<20080111230055.GB7618@crankycanuck.ca>
	<00045B34-A238-46B9-8641-C0A40C5CCCE5@blighty.com>

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On Fri, 11 Jan 2008 15:37:37 -0800
Steve Atkins <steve@blighty.com> wrote:

> > Well, maybe.  The problem is actually that, without a netmask
> > under CIDR,
> > the address alone isn't really enough.  You have to have a netmask  
> > to get
> > the packets to the destination.
> 
> Not really. You may well need netmasks to configure your interface,
> but there's absolutely no need for them to identify an IP endpoint,
> which is all
> you need to identify the destination the packet is going to, and
> that is the
> most common use of IP addresses.

Steve I think you are speaking of practicality and implementation
versus RFC compliance. I believe per the RFC Andrew is correct.

Sincerely,

Joshua D. Drake




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