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Hierarchical view of subnet IP address

Do not I have a lot of writing, here is one table for the IP address 192.168.1.0 (VLSM subnetting C class, four-th Octet in an IP address)

Figure 10.

VLSM subnetting C class, four-th Octet in an IP address

On Figure10 you see picturesque hierarchical view of IP addresses that are Subnetting. You notice that the Figure10 shows only the fourth octet, ie. Decimal number with a dot in front of meaning that comes in front of the power supply (the one our "N"). "N" denotes Network.

How to orient yourself the picture. Let's look at our IP address 192.168.1.65, where is it located?
It is located in the third column of .64 (.94 .65).
That means if we perform Subnetting IP address 192.168.1.0 and the default network mask 255.255.255.0 that we borrowed three bits, so our new Subnet Mask 255.255.255.224, or CIDR (Classless Inter-Domain Routing) format /27, and is in the range of IP addresses 192.168.1.65 - 192.168.1.94

Wondering what is the IP address 192.168.1.64, it is our Subnet that is not used, the first usable IP address is 192.168.1.65.
What is the IP address 192.168.1.95, now that's broadcast IP address that also do not use. 

Figure 10a.

A hierarchical division of A Class Private addresses


A hierarchical division of Internet addresses


Let's go to the next page tutorial.