The different
classes of IP addresses is as below:
|
Class |
Format |
Leading Bit pattern |
Network address Range |
Maximum networks |
Maximum hosts/ nodes |
|
A |
N.H.H.H |
0 |
0-126 |
127 |
16,777,214 |
|
B |
N.N.H.H |
10 |
128-191 |
16,384 |
65,534 |
|
C |
N.N.N.H |
110 |
192-223 |
2,097,152 |
254 |
- Network address of all zeros means
"This network or segment".
- Network address of all 1s means " all
networks", same as hexadecimal of all Fs.
- Network number 127 is reserved for
loop-back tests.
- Host (Node) address of all zeros
mean "This Host (Node)".
- Host (Node) address of all 1s mean
"all Hosts (Nodes) " on the specified network.
2. The range of numbers from 224.0.0.0 to 239.255.255.255 are
used for multicast packets. This is known as Class D address range.
3. Subnetting is nothing but creating networks within a
network. Subnetting allows an organization with a single IP address
(Class A /ClassB /ClassC) to have multiple subnetworks, thus
allowing several physical networks within the organization
