IP (Internet Protocol)

TCP/IP is the commonly known protocol, we already discussed about TCP. Now what is IP and what it does?

            Internet Protocol (IP) is used for routing packets. TCP & IP works together to communicate through internet but they works at different layer. IP works at Network Layer (Layer 3) where routing and forwarding takes place. IP is the main Protocol at Network Layer. We know how TCP works, it chops the data in to several pieces and adds Sequence Number in order to rearrange it properly, but who says that these pieces must be delivered to whom?

            That’s what IP says :)

When the segments are ready to go then it reaches the Network Layer, Internet Protocol Adds an IP Header which contains the Source IP Address and Destination IP Address so now the packets can travel through the internet. It’s same as we sending Mail with From Address and To Address. All the sending Packets doesn’t travel in the same route, it takes different route but to reach the same destination.