| Re: excluding an ip from count [message #183362 is a reply to message #183332] |
Mon, 21 October 2013 05:56   |
Evan Platt
Messages: 124
Registered: November 2010
Karma:
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Senior Member |
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On Sun, 20 Oct 2013 18:23:05 +0000 (UTC), Denis McMahon
<denismfmcmahon(at)gmail(dot)com> wrote:
> On Sun, 20 Oct 2013 09:41:43 -0700, Evan Platt wrote:
>
>> On Sun, 20 Oct 2013 10:32:12 -0400, Jerry Stuckle
>> <jstucklex(at)attglobal(dot)net> wrote:
>>
>>> You don't know how NAT works, that's for sure.
>>
>> Yes, actually, I do.
>>
>>>> Run an ipconfig on each of these office computers and tell me they
>>>> each list the public IP.
>
>>> That is not the public IP. That is the private IP on my LAN. But you
>>> obviously don't understand the difference.
>
>> Exactly my point. Each of your computers does NOT have the same public
>> IP.
>
> Evan, you seem to be conflating the term "public ip" and "private ip".
No, I don't.
> The definitions as I understand them:
>
> Public IP: The IP you present to the rest of the internet, for example,
> the ip address that an edge router at isp-x would see a packet as
> originating from when it arrives from your non isp-x connected origin
> system.
>
> Private IP: An internal IP address used on a network separated from the
> public internet by routers performing network address translation, such
> that any computer external to that network sees all traffic from
> computers within that network as originating from a single public ip
> address, or possibly a small set of public ip addresses.
>
> So a 192.168.x.x address would be a private IP address, not a public ip
> address. When bullis is in his hotel room in vegas with his blow up sheep
> and they're all using the hotel's wifi, they would normally all have
> private ips on the hotels private network, which through NAT would give
> them all the same public ip which I would see in my logs if they were
> accessing pictures of lolcats on my apache web server in the UK.
>
> (Note - I don't actually have a collection of lolcat pics on my server!)
Yes, exactly.The public IP is assigned to a DEVICE. Only one device
truly has that public IP, the rest have a private IP.
--
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