Method for using DHCP pool strategy based on global address pool

Abstract

A method for using DHCP pool policy based on global address pool includes setting up DHCP pool policy based on global address pool, carrying out IP address application according to bound address pool management policy after IP address request is received from network interface bound with said management policy, carrying out policy item-matching as per priority of policy item in said management policy, requesting relevant IP address from bound DHCP POOL and IP POOL in matched policy item and sending applied IP address to DHCP network user.

Description

technical field [0001] The invention relates to an Ethernet technology, in particular to a method for using a DHCP pool strategy based on a global address pool. Background technique [0002] With the development of broadband network technologies, a large number of broadband access network devices such as wireless access controllers (AC, Access Controller), broadband access servers (AS), and broadband access routers have sprung up. These broadband network access devices usually provide Through the built-in DHCP SERVER, the DHCPClient dynamic Internet Protocol (IP, Internet Protocol) address access function is realized, and at the same time, the access function of dynamically assigning IP addresses through PPP / PPPOE is also provided. [0003] However, the current broadband access network equipment in the industry separates the IP address pool management based on the Dynamic Host Control Protocol (DHCP, Dynamic Host Control Protocol) server (SERVER) from the IP address pool man...

AI Technical Summary

Problems solved by technology

[0005] (1) The IP pool space of the DHCP pool (POOL) used by DHCP SERVER and the IP address pool space of the IP POOL used by PPP / PPPOE need to be carefully planned, and there must be no overlap. Otherwise, it will cause user IP address conflicts and network chaos

[0006] (2) The IP pool space of the DHCP POOL used by DHCP SERVER and the IP address pool space of the IP POOL used by PPP / PPPOE cannot overlap, and the respective address pools are used independently and cannot be shared, which reduces the effective utilization rate of the IP address pool

[0007] (3) The independent planning of the IP pool space of the DHCP POOL used by DHCP SERVER and the IP address pool space of the IP POOL used by PPP / PPPOE increases the burden of network management and complicates the software implementation of some broadband access devices sex

[0010] (1) Controllable DHCP POOL management cannot be performed based on the interface, and the allocation strategy of the control interface is not available. As long as there is a relevant DHCP POOL configuration at the global level, DHCP users can apply for IP addresses from any interface

[0011] (2) The policy management of DHCP POOL cannot be planned in a controlled manner. The configured DHCP POOL can only apply for addresses according to specific software implementation methods, and cannot be flexibly customized, such as preferentially assigning addresses in a specific address range

[0012] (3) It cannot prevent DHCP users of untrusted interfaces from applying for IP addresses, making the management of DHCPPOOL vulnerable to address exhaustion attacks, thus affecting legitimate users' IP address requests

[0013] (4) In the case of network expansion, it does not support interface-based controllable super address pool management, which is not conducive to the scalability support of large-scale networks

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