For a network environment based on TCP/IP protocol, there are two main ways to manage IP addresses: static allocation and dynamic allocation, which are what we often call static IP and dynamic IP. When using proxy IP, we often see two options: dynamic proxy IP and static proxy IP. What is the difference between the two?
Static IP, also known as fixed IP address, is an IP address that is assigned to a computer or network device for long-term use. Generally speaking, only special servers or computers that use dedicated lines to access the Internet have fixed IP addresses, and they often require relatively high fees.
The advantage of a static IP is that it is easy to manage, especially in a local area network that limits network traffic based on IP addresses. Management based on the traffic generated by fixed IP addresses or IP address groups can eliminate the tedious process of identity authentication that users must undergo every time they go online when billing is based on user terms. It also avoids the embarrassment of users frequently forgetting their passwords.
The disadvantage of static IP is that the addresses allocated to legitimate users may be illegally stolen, which will not only affect the normal use of the network, but also easily cause losses to users and potential security risks because the stolen addresses often have higher permissions.
Dynamic IP
Dynamic IP refers to the method of allocating IP addresses to users in the available IP address space, which is randomly selected by the system only when the user's computer needs to connect to the network for work. For networks with many temporary users but a limited number of available IP addresses, if users are not required to pass identity authentication before accessing the network, then the strategy of dynamically allocating IP addresses is a very convenient management method. The dynamic allocation of IP addresses is carried out through the Dynamic Host Configuration Protocol (DHCP) of TCP/IP.
The advantages of dynamic IP are very obvious. The IP address used by users changes in real time every time they visit. This can help users bypass the countermeasures of most websites and achieve smooth business operations. At the same time, due to the change of IP address, its ability to prevent network attacks is stronger and its security is higher.
The disadvantage of dynamic IP is that it has certain requirements for hardware. Dynamic IP needs to obtain an IP address from a DHCP server, so it has certain requirements for equipment and is not very suitable for hosts that need to provide network services.
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