Method and gateway device for dynamically allocating access device address to multi-DHCP server network

Abstract

The embodiment of the invention discloses a method and gateway equipment for dynamically distributing an access equipment address to a multi-DHCP (Dynamic Host Configuration Protocol) server network. The method comprises the following steps that: each DHCP server sends an address pool request message; after each DHCP server receives request messages sent by other DHCP servers, the DHCP servers jointly elect a master server, and the rest of the DHCP servers are slave servers; the master server distributes an address pool of the master server to each slave server and sends an address pool notification message; after receiving the address pool notification message sent by the master server, the slave server sets an own address pool according to the address pool allocated by the master server; and the master server and the slave server distribute IP addresses from respective address pools to the devices accessed to the master server and the slave server. According to the invention, through simple protocol interaction, the distribution of the DHCP address pool is completed, the problem that different DHCP servers distribute the same network segment address is solved, the equipment connected with different wide area networks shares the local area network, address conflicts are avoided, and the user operation is simple.

Description

technical field [0001] The invention relates to the technical field of local area network sharing, in particular to a method or device for sharing a local area network by access devices under a home multi-broadband network, and in particular to a method for controlling multiple DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol) servers to reasonably allocate host addresses and gateway devices. Background technique [0002] At present, the commonly used home gateway connects to the telecommunication network, and provides domain name resolution services and dynamic address allocation services to the connected access devices, forwards the packets of the access devices to access the Internet, and forwards the packets of the access devices to access each other. The devices connected to the same home gateway are under the same local area network and can carry out various shared services. Due to the rise of high-traffic services such as video and games...

AI Technical Summary

Problems solved by technology

Due to the rise of high-traffic services such as video and games, one broadband may not meet business needs. A family may deploy multiple broadband and place multiple gateways. Different devices access different gateways and use their own broadband to access the Internet. In this case, different The access devices of the gateway are in different LANs and cannot be directly connected to each other. Functions such as DLNA (Digital Living Network Alliance, Digital Living Network Alliance) in the LAN cannot run

[0003] The current common practice is to connect the devices to the same gateway. The two devices are in the same LAN but can only share one Internet access broadband, or the LAN / WLAN ports of the two gateways are connected. Manually assign each gateway address and DHCP address pool to ensure that all In the same network segment and there can be no address conflicts, so the user experience is not good and it is more professional. After the second layer is connected, the access device may not obtain the address from the directly connected gateway but obtain the address from the indirect gateway. The inbound device uses the broadband of the indirect gateway to access the Internet

Although DHCP Relay can realize the transfer of DHCP messages between different subnets and physical network segments, it is mainly used in Layer 3 switches or routers, and it is not applicable to scenarios of Layer 2 connectivity.

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