Network & Hosts:
IP addresses are typically made of two separate components:
1. The first part of the address is used to identify the network that the address is a part of.
2. The part that comes afterwards is used to specify a specific host within that network.
(N= network H=Host)
Class A: N.H.H.H -8 bit 255.0.0.0
Class B: N.N.H.H – 16 bit 255.255.0.0
Class C: N.N.N.H – 24 bit 255.255.255.0
Netmasks and Subnets:
The process of dividing a network into smaller network sections is called subnetting. This can be useful for many different purposes and helps isolate groups of hosts together and deal with them easily.
<network><host> to <network><subnet><host>
http://www.subnet-calculator.com/subnet.php?net_class=B
First IP Address reserved is Subnet ID.
Last Address is reserved for Broadcast Address.
