With the continuous development of computers and networks, the scale and number of networks have also increased. Slowly, the frequency of the name of IP address has gradually begun to no longer be limited to network professionals and students, but has gradually entered the field of vision of the general public. So this article will talk about what is public IP, intranet IP, dynamic IP, and static IP.
This article mainly describes the differences and characteristics of public IP, intranet IP, dynamic IP, and static IP. This is also something I was a little confused about in the early stages. You can just treat it as some cold knowledge. If there is anything wrong, I hope the experts can point it out in time.
Public IP:
Public IP is the IP on the public network. The public network is what we call the wide area network, or the Internet. The wide area network and the local area network are two ways to access the Internet. Computers on the wide area network and other computers on the Internet can access each other at will. To put it bluntly, the public network is the network outside the router or switch.
Features of public IP: It can directly connect to the Internet. It is more convenient than the intranet, but it is also more vulnerable to attacks. Intranet IP:
Intranet IP is the IP on the intranet. It is a local area network created under a switch or router. Computers on the intranet can send connection requests to other computers on the Internet, but other computers on the Internet cannot send connection requests to computers on the intranet. To put it bluntly, the intranet is the network within the router or switch environment. It is commonly used in: Internet cafes, companies, and school computer rooms.
Characteristics of intranet IP: It is more secure than public network IP and can save IP resources, but it needs to be converted and has restrictions on dynamic IP:
That is, the IP will change at any time. It is the IP randomly assigned by the operator when you need to access the Internet. It is not fixed.
Features of dynamic IP: It can save IP resources and it is difficult for others to find the user's address, but it is not applicable in some scenarios (such as building a website)
Static IP:
A fixed IP address assigned directly by the operator, the IP will not change.
Features of static IP: Easy to manage, no frequent identity authentication required, but it will occupy IP resources and can only be used by one device, otherwise it will cause device network conflicts
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