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Re: excluding an ip from count [message #183366 is a reply to message #183364]

Mon, 21 October 2013 09:54

Arno Welzel
Messages: 317
Registered: October 2011

Karma:

Senior Member

Am 21.10.2013 09:32, schrieb Jerry Stuckle:

> On 10/21/2013 1:56 AM, Evan Platt wrote:
[...]
>> Yes, exactly.The public IP is assigned to a DEVICE. Only one device
>> truly has that public IP, the rest have a private IP.
>>
>
> Then please explain how many users can have the "public ip" 192.168.x.x.
> I have them on my LAN at home; customers have the *exact same* ip on
> their LANs. In fact, I would be there are hundreds of thousands (or
> millions) of computers out there connected to the internet which have
> the ip address 192.168.0.x or 192.168.1.x, as indicated by ifconfig (or
> the Linux equivalent ipconfig or ip -a).
>
> How can this work?

By the use of NAT.

And no - NAT does not mean that all these computers with private IP
addresses have a public IP address as well. You can find this out the
hard way when trying to use protocols like IPSec or active FTP or when
you try to build a VPN between two LANs which have the same private
network address (e.g. 192.168.1.0/16).

--
Arno Welzel
http://arnowelzel.de
http://de-rec-fahrrad.de

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[Message index]

		excluding an ip from count By: Mr Oldies on Tue, 15 October 2013 23:38
		Re: excluding an ip from count By: Beauregard T. Shagnas on Wed, 16 October 2013 00:17
		Re: excluding an ip from count By: Tobiah on Wed, 16 October 2013 16:44
		Re: excluding an ip from count By: Mr Oldies on Wed, 16 October 2013 19:38
		Re: excluding an ip from count By: Scott Johnson on Wed, 16 October 2013 22:40
		Re: excluding an ip from count By: Tobiah on Fri, 18 October 2013 18:29
		Re: excluding an ip from count By: Scott Johnson on Fri, 18 October 2013 23:14
		Re: excluding an ip from count By: Evan Platt on Sat, 19 October 2013 15:06
		Re: excluding an ip from count By: Lew Pitcher on Sat, 19 October 2013 15:34
		Re: excluding an ip from count By: Denis McMahon on Sat, 19 October 2013 23:23
		Re: excluding an ip from count By: Mr Oldies on Sat, 19 October 2013 23:52
		Re: excluding an ip from count By: Jerry Stuckle on Sun, 20 October 2013 02:31
		Re: excluding an ip from count By: Evan Platt on Sun, 20 October 2013 05:24
		Re: excluding an ip from count By: Jerry Stuckle on Sun, 20 October 2013 13:13
		Re: excluding an ip from count By: Evan Platt on Sun, 20 October 2013 13:52
		Re: excluding an ip from count By: Jerry Stuckle on Sun, 20 October 2013 14:32
		Re: excluding an ip from count By: Evan Platt on Sun, 20 October 2013 16:41
		Re: excluding an ip from count By: Denis McMahon on Sun, 20 October 2013 18:23
		Re: excluding an ip from count By: Jerry Stuckle on Mon, 21 October 2013 01:04
		Re: excluding an ip from count By: Evan Platt on Mon, 21 October 2013 05:56
		Re: excluding an ip from count By: Jerry Stuckle on Mon, 21 October 2013 07:32
		Re: excluding an ip from count By: Arno Welzel on Mon, 21 October 2013 09:54
		Re: excluding an ip from count By: Tim Streater on Mon, 21 October 2013 10:06
		Re: excluding an ip from count By: Jerry Stuckle on Mon, 21 October 2013 12:05
		Re: excluding an ip from count By: Denis McMahon on Sun, 20 October 2013 18:14
		Re: excluding an ip from count By: Tim Streater on Sun, 20 October 2013 21:24
		Re: excluding an ip from count By: Denis McMahon on Mon, 21 October 2013 18:30
		Re: excluding an ip from count By: Denis McMahon on Mon, 21 October 2013 18:34
		Re: excluding an ip from count By: Evan Platt on Sun, 20 October 2013 06:02
		Re: excluding an ip from count By: Lew Pitcher on Sun, 20 October 2013 14:12
		Re: excluding an ip from count By: Evan Platt on Sun, 20 October 2013 16:43
		Re: excluding an ip from count By: Jerry Stuckle on Mon, 21 October 2013 01:05
		Re: excluding an ip from count By: Denis McMahon on Sun, 20 October 2013 18:07
		Re: excluding an ip from count By: Lew Pitcher on Sun, 20 October 2013 14:08
		Re: excluding an ip from count By: The Natural Philosoph on Sat, 19 October 2013 17:44
		Re: excluding an ip from count By: Richard Yates on Sat, 19 October 2013 21:50
		Re: excluding an ip from count By: The Natural Philosoph on Sat, 19 October 2013 22:37
		Re: excluding an ip from count By: Richard Yates on Sat, 19 October 2013 21:52
		Re: excluding an ip from count By: Scott Johnson on Sun, 20 October 2013 18:37
		Re: excluding an ip from count By: Arno Welzel on Sun, 20 October 2013 14:56

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