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  1.  Home
  2. PCTECH
  3. September 2004

Re: Private IP addresses

From what I understand IP Classes (wasted a lot of IP addresses) were important before the subnet mask came along. Check out
http://www.networkclue.com/routing/tcpip/addressing.php

I assume you know what Private IP addresses are.

John Ross
www.ERP400.com
www.Netshare400.com

Dan Bale wrote: 
On AS400pro.com, I found the following reference:

Private IP addresses
10.x.x.x  Full Class A
172.16.x.x - 172.31.x.x  Multiple Class B addresses
192.168.x.x  Multiple Class C addresses

Can someone point me to an "easy" reference to the meanings of the
"classes", or describe them here?  I have some familiarity with the last one
as my PC at home uses a "C" address sitting behind a router/firewall, which
itself uses the IP address assigned by the ISP.  My PC at work is assigned a
class "B" address.

But what are the differences between them?

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