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Groups > comp.lang.php > #11536

Re: excluding an ip from count

From Denis McMahon <denismfmcmahon@gmail.com>
Newsgroups comp.lang.php
Subject Re: excluding an ip from count
Date 2013-10-21 18:30 +0000
Organization A noiseless patient Spider
Message-ID <l43rru$3qu$3@dont-email.me> (permalink)
References (9 earlier) <jpp66956hghj0thg8ae3jmaqlajhvln28h@4ax.com> <l40kuk$19p$1@dont-email.me> <otn7699lcib53sbku12hc0htn5e1f8i2ds@4ax.com> <l416im$gut$2@dont-email.me> <timstreater-95FC6D.22241620102013@news.individual.net>

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On Sun, 20 Oct 2013 22:24:16 +0100, Tim Streater wrote:

> It's not a reserved range for NAT. It's reserved for any private network
> (as is 10.x.x.x) because it's guaranteed not to be routed on the
> Internet. Any packet addressed to such an address will be dropped.

Point, my bad, yes you don't have to sit behind NAT on a reserved IP 
range at all. You don't have to have any external connection.

I still think that Evan knows what he's talking about, but that there's 
some terminology confusion.

For example, when I make a request, the server at the other end sees the 
ip that my isp asigns to my router, that is my public ip. I consider that 
the machine I'm sitting at doesn't have a public ip, it just has a 
private ip, and my router nats the private ip onto the public ip. 
However, some people might consider that every machine on my network had 
the public ip of the router, and in some phrasings that would be a 
correct statement (any request they make outside of the lan appears to 
come from that public ip), but it's not a true public ip as incoming 
requests on that ip are not guaranteed to hit any specific machine, and 
in fact won't go anywhere unless I've opened up and mapped a port on the 
router for the incoming connections.

So although I consider that in my frame of reference, and the terminology 
that I use, that each machine on my lan has just a private ip, and the lan 
as a whole has a public ip, I can conceive that in some peoples 
phraseology, especially people who might have had a different learning 
path in networking generally and tcp/ip specifically to the one I've 
followed, might consider that every machine on my lan had the same public 
ip, but separate private ips.

What I am confused about, though, is a post where Evan appeared to be 
saying that the lan side ip (ie 192.168.x.x.) was a public ip? Perhaps he 
just did what I do occasionally, and got his mucking fords wuddled?

-- 
Denis McMahon, denismfmcmahon@gmail.com

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Thread

excluding an ip from count richard <noreply@example.com> - 2013-10-15 19:38 -0400
  Re: excluding an ip from count "Beauregard T. Shagnasty" <a.nony.mous@example.invalid> - 2013-10-16 00:17 +0000
  Re: excluding an ip from count Tobiah <toby@tobiah.org> - 2013-10-16 09:44 -0700
    Re: excluding an ip from count richard <noreply@example.com> - 2013-10-16 15:38 -0400
      Re: excluding an ip from count Scott Johnson <noonehome@chalupasworld.com> - 2013-10-16 15:40 -0700
        Re: excluding an ip from count Tobiah <toby@tobiah.org> - 2013-10-18 11:29 -0700
          Re: excluding an ip from count Scott Johnson <noonehome@chalupasworld.com> - 2013-10-18 16:14 -0700
            Re: excluding an ip from count Evan Platt <evan@theobvious.espphotography.com.invalid> - 2013-10-19 08:06 -0700
              Re: excluding an ip from count Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2013-10-19 11:34 -0400
                Re: excluding an ip from count Denis McMahon <denismfmcmahon@gmail.com> - 2013-10-19 23:23 +0000
                Re: excluding an ip from count richard <noreply@example.com> - 2013-10-19 19:52 -0400
                Re: excluding an ip from count Jerry Stuckle <jstucklex@attglobal.net> - 2013-10-19 22:31 -0400
                Re: excluding an ip from count Evan Platt <evan@theobvious.espphotography.com.invalid> - 2013-10-19 22:24 -0700
                Re: excluding an ip from count Jerry Stuckle <jstucklex@attglobal.net> - 2013-10-20 09:13 -0400
                Re: excluding an ip from count Evan Platt <evan@theobvious.espphotography.com.invalid> - 2013-10-20 06:52 -0700
                Re: excluding an ip from count Jerry Stuckle <jstucklex@attglobal.net> - 2013-10-20 10:32 -0400
                Re: excluding an ip from count Evan Platt <evan@theobvious.espphotography.com.invalid> - 2013-10-20 09:41 -0700
                Re: excluding an ip from count Denis McMahon <denismfmcmahon@gmail.com> - 2013-10-20 18:23 +0000
                Re: excluding an ip from count Jerry Stuckle <jstucklex@attglobal.net> - 2013-10-20 21:04 -0400
                Re: excluding an ip from count Evan Platt <evan@theobvious.espphotography.com.invalid> - 2013-10-20 22:56 -0700
                Re: excluding an ip from count Jerry Stuckle <jstucklex@attglobal.net> - 2013-10-21 03:32 -0400
                Re: excluding an ip from count Arno Welzel <usenet@arnowelzel.de> - 2013-10-21 11:54 +0200
                Re: excluding an ip from count Tim Streater <timstreater@greenbee.net> - 2013-10-21 11:06 +0100
                Re: excluding an ip from count Jerry Stuckle <jstucklex@attglobal.net> - 2013-10-21 08:05 -0400
                Re: excluding an ip from count Denis McMahon <denismfmcmahon@gmail.com> - 2013-10-20 18:14 +0000
                Re: excluding an ip from count Tim Streater <timstreater@greenbee.net> - 2013-10-20 22:24 +0100
                Re: excluding an ip from count Denis McMahon <denismfmcmahon@gmail.com> - 2013-10-21 18:30 +0000
                Re: excluding an ip from count Denis McMahon <denismfmcmahon@gmail.com> - 2013-10-21 18:34 +0000
                Re: excluding an ip from count Evan Platt <evan@theobvious.espphotography.com.invalid> - 2013-10-19 23:02 -0700
                Re: excluding an ip from count Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2013-10-20 10:12 -0400
                Re: excluding an ip from count Evan Platt <evan@theobvious.espphotography.com.invalid> - 2013-10-20 09:43 -0700
                Re: excluding an ip from count Jerry Stuckle <jstucklex@attglobal.net> - 2013-10-20 21:05 -0400
                Re: excluding an ip from count Denis McMahon <denismfmcmahon@gmail.com> - 2013-10-20 18:07 +0000
                Re: excluding an ip from count Lew Pitcher <lew.pitcher@digitalfreehold.ca> - 2013-10-20 10:08 -0400
              Re: excluding an ip from count The Natural Philosopher <tnp@invalid.invalid> - 2013-10-19 18:44 +0100
              Re: excluding an ip from count Richard Yates <richard@yatesguitar.com> - 2013-10-19 14:50 -0700
                Re: excluding an ip from count The Natural Philosopher <tnp@invalid.invalid> - 2013-10-19 23:37 +0100
            Re: excluding an ip from count Richard Yates <richard@yatesguitar.com> - 2013-10-19 14:52 -0700
              Re: excluding an ip from count Scott Johnson <noonehome@chalupasworld.com> - 2013-10-20 11:37 -0700
  Re: excluding an ip from count Arno Welzel <usenet@arnowelzel.de> - 2013-10-20 16:56 +0200

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