Dynamic IP, also known as DHCP Internet access, means automatically obtaining an IP address for Internet access. Dynamic IP is a way of accessing the Internet. When connecting to the network, it can automatically obtain an IP address to access the Internet normally. Without using a router, just connect the broadband network cable to the computer, set the IP address on the computer to be obtained automatically, and the computer can access the Internet.

Static IP, also known as fixed IP address. Generally speaking, broadband operators will provide users with an IP address, subnet mask, gateway and DNS server address. Without using a router, just connect this incoming network cable to the computer and manually set the IP address on the computer. Then the computer can access the Internet.

The difference between static IP and dynamic IP:

The difference between dynamic IP and static IP lies in that dynamic IP needs to automatically obtain the IP address when connecting to the network for users to access the Internet normally, while static IP is the IP address assigned to users by the ISP when installing the device, allowing them to directly connect to the Internet without the need to obtain the IP address.

Dynamic IP addresses need to be automatically obtained when connecting to the network to enable users to access the Internet normally, while static IP addresses are assigned to users by ISPs when installing devices, allowing them to directly connect to the Internet without the need to obtain IP addresses.

A static IP is an IP segment that can directly access the Internet. When an ISP installs a device, it will allocate an IP address to you, so that the computer no longer automatically acquires the network address when connecting to the network, avoiding the trouble of network connection.

The impact of dynamic IP and static IP on network speed: The network speed provided by an ISP to each user is not limited by the IP address, but by the physical line through which the user connects to the ISP.

Static IP Addresses Assigned by ISPs: It is impossible for ISPs to give away IP addresses. To be precise, it should be said that ISPs rent IP addresses to users for use. Because in the current situation where IPv4 addresses have been fully allocated and are severely scarce. It is impossible for an ISP to casually give an IP address to a user.

The use of static IP and dynamic IP：

Dynamic IP Internet access, also known as DHCP Internet access. Automatically obtain IP to access the Internet. The dynamic IP Internet access method, without using a router, only requires connecting this broadband network cable to the computer, setting the IP address on the computer to be automatically obtained, and the computer can then access the Internet.

Static IP Internet access, also known as fixed IP address Internet access. In this way of accessing the Internet, broadband operators will provide users with a single IP address, subnet mask, gateway and DNS server address. Without using a router, just connect this incoming network cable to the computer and manually set the IP address on the computer. Only in this way can the computer access the Internet.

Both dynamic IP and static IP have their own advantages and disadvantages. Generally speaking, for users, dynamic IP is friendly to terminal nodes. It is automatically configured through communication between the DHCP server and the client. This process does not require intervention from the terminal user and does not need the terminal user to master or remember any IP stack parameters. For the access side, dynamic IP is more resource-efficient.

The disadvantage of dynamic IP is that for the Windows system, enabling the dynamic IP configuration function will significantly reduce the speed of entering the system desktop. Of course, the so-called "significant reduction" is only a few seconds' difference under normal circumstances. Another drawback is that using dynamic IP increases the difficulty of three-layer control. Generally speaking, when enabling DCHP, if three-layer control is required simultaneously, MAC-IP bundling is usually enabled.

At this point, in the face of these problems, we need to handle them through static ip. This can not only prevent the problem of frequent inability to connect via remote SSH due to the back-and-forth movement of the IP automatically assigned by DHCP, but also improve the network connection speed. There is no such thing as which is better, dynamic IP or static IP. It can only be said that each has its own advantages.