Okay, but it will be most helpful if you first go back to Chapter 2 and review Figures 2.15 and 2.16. As can be seen from these figures, the TCP/IP protocol suite defines two different transport layer ...

The network layer transfers user messages from a source host to a destination host. In TCP/IP, the heart and soul of this layer is the Internet Protocol, which is the IP of TCP/IP. IP receives data ...

The Internet Protocol (IP) is part of the TCP/IP protocol suite ... Internet protocol (IP) packets are handed over to a data link layer protocol, for the physical transmission to the next node ...

Note that the IP protocol number is not the same as the port number (see TCP/IP port), which refers to a higher level, such as the application layer. Following are some of the common IP protocol ...