TCP/IP addressing

Protocol
    Set of rules to follow to have proper communication.

Network protocols

• TCP/IP   (Department of defence) 
• IPx/SPx  (Novell)
• Appletalk(Apple)
• Netbios    (Microsoft)
• OSI          (ISO)

What is TCP/IP?

• TCP/IP is a standard protocol used between computers and network devices for communication.
• Internet work based on TCP/IP.

TCP/IP addressing

• IP address is logical address given to each and every device in the network.
• IP address used to identify specific device in the network.

Two versions of IP:

• IP version 4  (32 bit)



IPv4

• IP version 6  (128 bit)

IP address classifiaction



Types of communication

    In an IPv4 network, the hosts can communicate one of the three different ways.

1. Unicast
2. Broadcast
3. Multicast

1. Unicast
      The process of sending a packet from one host to all hosts in the network.

                    

2. Broadcast
     The process of sending a packet from one host to all hosts in the network.

        

3. Multicast

•     The process of sending a packet from one host to a selected group of hosts, possibly in different networks.
• Class D   224-239  Reserved for multicasting