What does dynamic IP mean?-Wan Wei Telecom

Dynamic IP refers to an IP address that is automatically assigned by the Internet Service Provider (ISP) through the DHCP server and may change each time you connect to the network. Unlike the fixed nature of static IP, dynamic IP is temporary and changeable, and is mainly used in scenarios such as home networks and public Wi-Fi.

Core features of dynamic IP

Temporary allocation: Each time a device connects to the network, the ISP will randomly assign an IP from the address pool, and the IP may be used by other devices after disconnection.

Automated management: Fully automatic allocation is achieved through the DHCP protocol, without the need to manually configure network parameters.

Resource optimization: Effectively alleviate the problem of IPv4 address shortage, especially suitable for equipment-intensive environments.

Comparison with static IP

Features	Dynamic IP	Static IP
Allocation method	Automatic temporary allocation	Fixed long-term binding
Cost	Usually free	May require additional fees
Applicable scenarios	Home network, mobile device	Server hosting, remote access

Main advantages and disadvantages

Advantages:

Reduces management difficulty and is suitable for non-technical users.
Frequent IP changes enhance security (such as reducing the risk of hacker tracking).

Disadvantages: Not suitable for services that require a fixed IP (such as website hosting).
Remote connections may be interrupted due to IP changes and require reliance on DDNS services.