Terminal equipment information counting method and terminal equipment information counting device based on Hash node

Abstract

The invention provides a terminal equipment information counting method and a terminal equipment information counting device based on a Hash node. The terminal equipment information counting method is applied to a router connected with multiple pieces of terminal equipment, and a Hash table is provided. The method comprises the steps as follows: when a data packet passing through a kernel protocol stack of the router is an uplink data packet, getting the source IP address of the uplink data packet; querying whether there is a Hash node corresponding to the source IP address in the Hash table; if there is no Hash node corresponding to the source IP address in the Hash table, building a new Hash node according to the source IP address and inserting the new Hash node into the Hash table; if there is a Hash node corresponding to the source IP address in the Hash table, not processing the Hash node; and counting the traffic information of the source IP address according to the uplink data packet, and storing the traffic information in the Hash node corresponding to the source IP address. Through the method provided by the invention, the problems of information shortage and poor effectiveness for information acquisition through an application layer only are avoided, and the trouble brought to users by redundant information collection is avoided.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a method and device for statistics of terminal equipment information based on hash nodes. Background technique [0002] At present, most of the smart routers have the function of preventing network increase, and the realization of these anti-scrambling functions is based on the correct acquisition of some information of the terminal equipment connected to the router. The information here refers to the IP address of the mobile phone or computer. , physical address, traffic information, etc. [0003] In the prior art, the general manufacturer's router adopts the method of reading the client list of the DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol) server to obtain the corresponding IP address and physical address information, which is based on the application layer DHCP Device information obtained by the protocol. However, this met...

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Problems solved by technology

However, this method has the following disadvantages: 1. The device information acquisition method based on the DHCP server depends on the DHCP protocol. If the lease period is long (such as 24 hours), even if a certain device has already been offline, it will still be available. The device information can be read from the DHCP client list; 2. For a terminal with a static IP address set, the DHCP client list cannot find the device information

In order to make up for this deficiency of the DHCP server, some manufacturers have adopted the method of reading the router ARP (Address Resolution Protocol, Address Resolution Protocol) table. The disadvantages of this method are also obvious: 1. The aging time of the ARP entry may be very long , this shortcoming is similar to the lease time of DHCP; 2. The same network card device of a terminal can set multiple IP addresses of different network segments at the same time, and the ARP module of the kernel will make statistics indiscriminately, so when reading the ARP table, There will be multiple records with the same MAC address, but the IP is in a different network segment.

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