Blog 10

This week we focused on sub-netting.  The practice of dividing a network into two or more networks is called subnetting.

Subnetting

Subnetting is the process of designating some high-order bits from the host part and grouping them with the network mask to form the subnet mask. This divides a network into smaller subnets. The following diagram modifies the example by moving 2 bits from the host part to the subnet mask to form a smaller subnet one fourth the previous size:

Binary form Dot-decimal notation
IP address 11000000.10101000.00000101.10000010 192.168.5.130
Subnet mask 11111111.11111111.11111111.11000000 255.255.255.192
Network prefix 11000000.10101000.00000101.10000000 192.168.5.128
Host part 00000000.00000000.00000000.00000010 0.0.0.2

The following video shows how subnetting works:

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This week I contributed to Diigo on the future of network security:

http://www.infosecurity-magazine.com/view/24735/comment-the-future-of-network-security

 

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About jmm0592

I am from Lakeland, FL. I am married with two kids. I've been in the military since 2002, which led me to Kansas. I worked on Signal Communications for 5 years in the Army on older Vietnam era Small Extension Nodes, Line of site Antennae, Radios, and fiber optics and cable installing. I switched career fields to Unmanned Aircraft back in 2007 in the Army. I separated from Active Duty and have been a student at Kstate since Spring 2011. I am a UAS major.
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