IP Address

IP stand for Internet protocol, IP address is logical and unique address given to each and every device in the network.
IP address classification:-
IP addresses are divided into 5 classes-
class A     0     -127    |
class B     128 -191    |       used in LAN and WAN
class C     192 -223    |

class D      224 -239      reserved for multicasting
class E      240 -255      reserved for research and development

TYPES OF COMMUNICATION:-
1. unicast :- send a packet from one host to an individual host.
2. broadcast :- send a packet from one host to all host in network.
3. multicast :- send a packet from one host to selected group of hosts.

NETWORK AND HOST
class A       N.H.H.H
class B       N.N.H.H
class C       N.N.N.H

H represent a specific device in network.
N represent set of devices.

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