What IP address should be used for dial-up Internet access via telephone lines?

The IP address used to dial up the Internet through telephone lines adopts "dynamic allocation of IP addresses". Dynamic allocation of IP addresses refers to the method of allocating IP addresses when needed; the so-called dynamic means that every time you go online, China Telecom will randomly assign an IP address. Advantages of dynamic IP addresses: 1. Low cost; 2. Automatic configuration. With dynamic IP, the DHCP server will automatically assign the next available IP address to the device without maintenance; 3. High security, because every time a user logs in, it will Assign a new IP address to the device; 4. Unlimited IP address.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

The IP address used to dial up the Internet through telephone lines adopts "dynamic allocation of IP addresses".

Telephone dial-up Internet access is the most commonly used and most common way to connect to the international Internet through telephone lines and Internet-specific equipment (such as modems, etc.) in conjunction with computers.

Dynamic IP address (Dynamic IP) refers to the method of allocating IP addresses when needed. Dynamic IP addresses and static IP addresses correspond to each other. The so-called dynamic means that every time you go online, China Telecom will randomly assign an IP address; static means that a fixed IP address is assigned and this address will be used every time.

Because IP address resources are precious, most users use dynamic IP addresses to access the Internet. For example, computers that access the Internet through Modem, ISDN, ADSL, wired broadband, community broadband, etc., all use dynamic IP addresses every time. Temporarily assign an IP address when surfing the Internet.

Advantages and Disadvantages of Dynamically Assigning IP Addresses

Dynamic IP address is the most common type of IP address. Different from static IP address, dynamic IP The address is a changing IP address and may change at any time. Dynamic IP addresses are great for everyday internet users, so they are commonly used on home networks.

Advantages of dynamic IP

1. Low cost. Because the number of static IPs is limited, it is more economical to use dynamic IPs.

2. Automatic configuration. With a dynamic IP address, the DHCP server automatically assigns the next available IP address to the device, requiring no maintenance and making it ideal for home use.

3. Safer. It is more secure because every time a user logs in, a new IP address is assigned to the device.

4. Unlimited IP address. In the network, your device will automatically configure a new dynamic IP address as needed, and may be assigned an IP you have used or an IP used by others.

Disadvantages of dynamic IP

1. Inaccurate geographical positioning. It is difficult to find the exact location of the device because dynamic IP addresses change.

2. Restrict remote access. If you use a dynamic IP address, your program may not be able to connect.

Dynamic IP addresses are generally available to most consumers, are relatively cheap, and generally pose less of a security risk.

For more related knowledge, please visit the FAQ column!

The above is the detailed content of What IP address should be used for dial-up Internet access via telephone lines?. For more information, please follow other related articles on the PHP Chinese website!