Resource device address obtaining method and device

Abstract

The invention discloses a resource device address obtaining method and device. The method is applied to gateway devices in a network. The network comprises a resource device, a management platform VM and multiple gateway devices. An address request message generated by the management platform VM according to a resource device IP address is received; whether an IP address in the address request message belongs to a network segment in which the resource device is located or not is judged according to an address request identifier in the address request message; an address response message is generated according to an MAC address corresponding to the IP address and a target network segment in which the resource device is located when the IP address in the address request message belongs to the network segment in which the resource device is located, and the address response message is sent to the VM, so when the VM and the resource device are located in different network segments, the VM still can obtain the network address information of the resource device accurately, processes such as initial access and post-maintenance of the resource device become more simple and convenient.

Description

technical field [0001] The present invention relates to the technical field of network address acquisition, in particular to a resource device address acquisition method and device. Background technique [0002] In the video surveillance system network, there are generally roles such as monitoring platform, network camera IPC, network equipment, and network hard disk video recorder NVR. The platform is the core node and is responsible for the access, management, and business scheduling of all resources. Resource devices such as NVR / IPC / social resources are connected to the monitoring system through various monitoring protocols, such as the onvif (Open Network Video Interface Forum) protocol as an example, the management platform VM determines a resource device through a unique IP address, and performs For services such as registration management, after the device goes online successfully, each resource device corresponds to an IP address. [0003] However, in practical appl...

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Problems solved by technology

[0004] (1) In the prior art, most resource devices rely on the DHCP function of the network to obtain IP addresses. When the resource device reconnects to the network after being disconnected, the IP address of the reconnected resource device may change. Register / keep alive with the platform device again, but the platform will consider the IP address as a new IP address, and the resource device is not the original device, which will lead to errors such as the failure of the device to go online;

[0005] (2) Simply using the IP address as the identification resource device cannot effectively prevent other devices from pretending to be the IP address of the existing resource device to maliciously attack the current video surveillance system network;

[0008] In the prior art, the MAC address of the network device is mainly obtained through the address resolution protocol ARP message, and the IP address of the network device is obtained through the reverse address translation protocol RARP. However, the above two protocols are only It is suitable for obtaining address information of network devices in the same network segment. In the video surveillance system network, there are often multiple network segments of multiple gateway devices. When the resource device and the management platform VM are not in the same network segment, through the current With the ARP or RARP query in the technology, the MAC address of the resource device cannot be obtained, and the resource device cannot be accessed.

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