FUNDAMENTALS OF COMPUTER

Detailed explanation-1: -IP is responsible for delivering the packets from source to destination, and regardless of the version being used, packets must use some form of addressing to uniquely identify the message source and message destination. This is very similar to the way that you address a letter that you send through the post.

Detailed explanation-2: -The protocol used to route the IP addresses is called the Internet Protocol (IP), which specifies each data packet’s origin and destination. These IP addresses route data packets from one computer (source system) to another (destination system) on the Internet.

Detailed explanation-3: -Routers got their name because they route IP Packets across networks: a router device connects different links. It examines IP packet headers, looking at the destination address and consulting a routing table of known networks. The table indicates which connections to send the packet on as the next link.

Detailed explanation-4: -Source IP address-the IP packet field containing the IP address of the workstation from which it came. Destination IP address-the IP packet field containing the IP address of the workstation to which it is addressed.

Detailed explanation-5: -In their forwarding tables, routers maintain lists of networks and the accompanying subnet mask. With these two pieces, the router can examine the destination address of each packet and then forward the packet on to the appropriate destination.