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© 2009 Zero Intellect. All rights reserved. The opinions expressed herein are my own personal opinions and do not represent my employer's view in anyway. This material is not sponsored or endorsed by any of the vendors mentioned in this website and their Logos are trademarks of their own and their affiliates.

RFC 1918 IP address

By zrydento, on December 3rd, 2009

 

I was reading about private IP addresses and RFC 1918 at http://www.ietf.org/rfc/rfc1918.txt

 

The RFC clearly divides hosts within enterprises into three categories

 

Category 1: hosts that do not require access to hosts in other enterprises or the Internet at large; hosts within this category may use IP addresses that are unambiguous within an enterprise, but may be ambiguous between

Continue reading RFC 1918 IP address

December 3rd, 2009 | Tags: , , , , | Category: Networking | One comment - (Comments are closed)

Classful vs Classless IP addresses

By zrydento, on December 3rd, 2009

 

To understand Classful vs Classless IP addresses, we first need to know what IP address classes are in the first place. IP address classes are as follows:

 

Class   Range
A          0.0.0.0   to   127.255.255.255
B          128.0.0.0   to   191.255.255.255
C         192.0.0.0   to   223.255.255.255
D          224.0.0.0   to   239.255.255.255
E          240.0.0.0   to   247.255.255.255

 

An IP address is broken down into a network part and a host part.

Continue reading Classful vs Classless IP addresses

December 3rd, 2009 | Tags: , , , , , , , | Category: Networking | One comment - (Comments are closed)