Automatic solving method and device for IP (Internet Protocol) network segment conflicts of multiple WAN (wide area network) and LAN (local area network)

Abstract

The invention discloses an automatic solving method for IP (Internet Protocol) network segment conflicts of multiple WANs (wide area network) and a LAN (local area network). The method comprises following steps of S1, obtaining IP addresses and corresponding sub-network masks WANMASKs allocated to multiple WAN ports of a router by a superior device; moreover, obtaining the IP address of the LAN port of the router; S2, calculating the IP addresses and corresponding sub-network masks WANMASKs allocated to multiple WAN ports of the router by the superior device, thus obtaining multiple WAN network segments in which the IP addresses of the multiple WAN ports are located; S3, judging whether the IP address of the LAN port of the router exists in any network segment of the multiple WAN network segments; S4, when the IP address of the LAN port of the router exists in any network segment of the multiple WAN network segments, modifying the IP address of the LAN port of the router according to a preset rule, thus enabling the IP address of the LAN port of the router not to exist in any network segment.

Description

technical field [0001] The invention relates to the technical field of routers, in particular to a method and device for automatically resolving IP network segment conflicts of multiple WANs and LANs. Background technique [0002] Dynamic Host Configuration Protocol (DHCP) is a LAN network protocol, using UDP (the abbreviation of UserDatagramProtocol, the Chinese name is User Datagram Protocol) protocol work, there are two main purposes: to the internal network or network service providers automatically Allocate IP (the abbreviation of Internet Protocol network interconnection protocol, the Chinese abbreviation is "Network Association", which is a protocol designed for computer network interconnection and communication) addresses, and give users or internal network administrators as a role for all computers. means of central management. [0003] IP layer network access devices, including base stations, routers, etc., all have WAN ports and LAN ports for message forwarding. ...

AI Technical Summary

Problems solved by technology

Therefore, when two routers do secondary routing, IP network segment conflicts are likely to occur, so that the router (secondary router) as the secondary routing cannot obtain an IP address, and thus cannot access the Internet, or even if it can obtain an IP address, it is still the same. Able to surf the Internet without any prompts on the page

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