What scenarios are static IP and dynamic IP suitable for?

Static IP and dynamic IP are suitable for different scenarios, which mainly depends on the network requirements, device type and the nature of the service. Here are some common scenarios where they are suitable:

Application scenarios of static IP address:

1. Servers : When running a website, mail server, or other service that requires constant access, using a static IP address ensures that users can always access these services through the same address.
2. Remote access and management : When administrators need to remotely access or manage devices on the network from an external network, using static IP addresses ensures that the location of the devices remains unchanged.
3. VoIP phone system : To ensure call quality and service stability, VoIP phones usually require static IP addresses to reduce the possibility of connection interruptions.
4. Online gaming : Some online games require players to use static IP addresses so that the game server can more effectively manage and track the player's activities.
5. File sharing and FTP servers : Static IP addresses allow users to access file sharing and FTP servers from anywhere without having to worry about changes in IP addresses.
6. Security cameras and other surveillance equipment : Fixed IP addresses allow users to view live video streams from remote locations and ensure the continuity of the video stream.

Application scenarios of dynamic IP address:

1. Home Networking : Home users' Internet connections are usually assigned dynamic IP addresses because home users do not need a fixed public IP address.
2. Small Businesses : For small businesses that do not provide public services, a dynamic IP address is sufficient to meet daily Internet needs.
3. Mobile devices : Portable devices such as mobile phones and laptops usually use dynamic IP addresses because they need to obtain new IP addresses when accessing the Internet at different locations.
4. Temporary network settings : When setting up a temporary LAN or wireless network, dynamic IP addresses provide a convenient configuration method, reducing the workload of manually assigning IP addresses.
5. Large-scale networks : Large organizations or ISPs may choose to use dynamic IP addresses to more efficiently manage large numbers of IP address resources, since not all devices need to be online at the same time.
6. DHCP network : When a DHCP server is deployed in the network, network devices usually automatically obtain dynamic IP addresses, simplifying network management.

In short, static IP addresses are more suitable for environments that require a stable and predictable network identity, while dynamic IP addresses are suitable for more flexible application scenarios with a high tolerance for IP address changes.