IP address distributing method and device

Abstract

This invention puts forward a method and a device for distributing IP addresses including the following steps: distributing address stragety manually and setting the IP address binding information of the binding period of time for the host, which requires for the IP address and a server judges the binding period of time falling into the binding information at the requirement time scale and distributes the IP address of the binding period of time to the host in the lease time, which combines the advantages of dynamic distribution and manual distribution to avoid that there is un-distributed IP addresses as much as possible since the IP addresses are short at the DHCP server end.

Description

Technical field [0001] The invention relates to an IP address allocation method and device. Background technique [0002] The so-called DHCP protocol, namely Dynamic Host Configuration Protocol (Dynamic Host Configuration Protocol), is a type of TCP / IP protocol suite, which is suitable for situations where the usage density of IP resources is not high. Examples are as follows. If an organization has 400 computers, but at any one time, no more than 255 computers are online at the same time. If you use a fixed IP, you need to apply for 400 IPs for the organization. But if a dynamic IP allocation mechanism is adopted , It is enough to apply for 255 IPs, which saves the cost of 145 IP resources. [0003] DHCP is a client-server model. In this mode, specially designated hosts are assigned network addresses, and network configuration parameters are transmitted to the required network hosts. People call the designated host that provides the DHCP service as the server, and the host that ...

AI Technical Summary

Problems solved by technology

[0010] 1. IP address binding to hosts requires manual control by the network administrator, that is, both binding and unbinding depend on the manual configuration of the network administrator

[0011] 2. For a host whose IP address has been bound by the administrator, its requested IP address will be uniquely determined and cannot be changed

[0012] 3. In the case of scarce IP addresses on the DHCP server side, there will be unassigned IP addresses (bound IP addresses) on the server side, but other hosts will never be able to obtain these IP addresses

However, it does not have the advantage of the "manual allocation" strategy, that is, it does not have the convenience that the network administrator can control the behavior of each host in the network, for example, the IP address of the host, whether the host can access the Internet conveniently, and whether the host can use a certain network Serve

[0014] Especially in terms of differentiated services for some network users, "dynamic allocation" will be less controllable than "manual allocation"

For example, it is impossible to provide a host with a higher network transmission speed and more reliable network service quality than other hosts. The key reason is that "dynamic allocation" cannot provide a fixed, long-term, and unchanged designated IP address to the host.

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