In the Internet world, an IP address is a unique identifier for each computer or device in the network. IP addresses are divided into two types: static IP addresses and dynamic IP addresses. Static IP addresses refer to IP addresses that are permanent in the network, while dynamic IP addresses are IP addresses that are dynamically assigned by the network service provider each time you connect to the network.

Static IP addresses are usually assigned to enterprises or individual users by Internet service providers (ISPs) and require additional fees. In contrast, dynamic IP addresses are more common because they are more flexible and less costly. However, static IP addresses still play an important role in some cases and are very useful in specific usage scenarios.

Usage scenarios of static IP addresses:

1. Remote access and monitoring: Many enterprises need to remotely access and monitor their devices and networks. Using a static IP address ensures the stability and persistence of remote connections without being affected by dynamic IP address changes. This is very important for remote work, remote technical support, and remote monitoring.

2. Website hosting and servers: Static IP addresses are essential for businesses or individual users who need to host websites or run servers. By having a fixed IP address, users can ensure that their websites or servers can always be accessed through the same address without being affected by IP address changes.

3. Email server: Running your own mail server requires a static IP address to ensure the stability and reliability of email delivery. Dynamic IP addresses may be included in spam blacklists, affecting the delivery rate of emails.

4. Remote virtual private network access: Many companies need to provide virtual private network services for their employees to remotely access internal networks. Using a static IP address can simplify virtual private network configuration and provide a more stable connection experience.

5. Remote desktop services: For users who need remote desktop services, static IP addresses can ensure that they can always access their remote desktops through the same IP address without being affected by dynamic IP address changes.

Although static IP addresses are more expensive than dynamic IP addresses and are not necessary in most cases, they are still very valuable in specific use cases. For those who need remote access, host websites, run servers, manage email servers, or provide remote services, static IP addresses can provide a stable, reliable, and persistent connection experience, so they are worth considering.

When choosing whether to use a static IP address, users should weigh and consider it based on their specific needs and budget. For general users, dynamic IP addresses are usually able to meet their daily needs, while for users in some specific industries or with specific needs, static IP addresses may be indispensable.

Therefore, when choosing an Internet service provider, users should choose the appropriate IP address type based on their actual needs, and pay extra fees if necessary to obtain a more stable and reliable network connection experience.