Association between Internet protocol and other protocols

The basic meaning of the Internet protocol has been explained in the previous article. So there is a lot worth learning about this IP protocol. Especially its addressing method and address. It is the basic theory of using networks. Now let's take a deeper look.

Contact with other Protocols

Shows the position of the IP protocol in the protocol system.

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The Internet Protocol has two interfaces: one is the interface with the host and the other is the interface with the local network, the local network can be a small network or a large network, maybe.

Operation Mode

The following example shows what the operating model is. We assume that the transmission must go through the intermediate gateway. The transfer process calls the local Internet protocol module to send data, and transmits the destination address and other parameters as the call parameters. The IP layer prepares the data header and adds it to the data to be transferred. The IP Module determines a local network address for this network address, which is the gateway address here. The IP address transmits the datagram and the local network address to the network interface. Create a local network header for the local network interface and add it to the data report, and then send it to the local network.

After the datagram with the local network header arrives at the gateway, the local network interface removes this header and sends the result to the IP module on the gateway. This IP Module determines the main local network address of the target, and then reports the data transmitted to the local network interface as described above. This local network interface creates a local network header and sends the datagram to the target host. On the target host, the local network interface removes the local network header in the data report and delivers the result to the IP module. The IP Module determines the application to which the datagram should be transmitted. The system calls the data, and the IP Module returns the source address and other parameters.

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Function Description

The function of the Internet protocol is to transmit data packets over an interconnected network. It is achieved by transmitting data packets between IP modules until the target module. Each host and gateway in the network has an IP module. The datagram is transmitted to the destination address through a route processing network address between modules. Therefore, the network address is very important for the Internet protocol. As mentioned above, because the datagram sizes on each network may be different, it is necessary to segment large data packets.