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A system and method for preventing dhcpv6 server spoofing

A server, dhcpv6 technology, applied in the transmission system, electrical components, etc., can solve the problems that cannot meet the complex network requirements, and achieve the effect of easy implementation, simple method, and guaranteed security

Active Publication Date: 2016-12-14
北京神州数码云科信息技术有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to prevent the illegal setting of the DHCPv6 server, the DHCPv6 snooping (DHCPv6 SNOOPING) function is generally enabled in the switch, but enabling DHCPv6 snooping to prevent the private setting of the DHCPv6 server is a passive behavior, and the conditions for judging the illegal DHCPv6 server are relatively simple. Cannot meet the needs in complex networks

Method used

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  • A system and method for preventing dhcpv6 server spoofing
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  • A system and method for preventing dhcpv6 server spoofing

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Embodiment Construction

[0029] In order to describe in detail the technical content, the achieved purpose and the effects of the present invention, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0030] See figure 1 , Is a schematic diagram of a system for preventing DHCPv6 server spoofing according to the present invention. The system includes a switching device and a DHCPv6 server, wherein the switching device is used to actively construct and send a DHCPv6 discovery message (DHCPv6 SOLICIT message), and upon receiving said After the DHCPv6 server's DHCPv6 advertisement message (DHCPv6 ADVERTISE message) matches the DHCPv6 server characteristic information in the corresponding message with the pre-configured legal DHCPv6 server characteristic information, if the match is successful, the switching device will no longer send DHCPv6 request messages (DHCPv6 REQUEST message); if the match fails, the switching device discards all DHCPv6 messages ...

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Abstract

The present invention discloses a system and method for preventing DHCPv6 server deception. The method includes: S1: a switching device is pre-configured to meet the characteristics of a legal DHCPv6 server, and actively constructs a DHCPv6 discovery message; S2: the switching device forwards the message to the DHCPv6 server ; S3: the DHCPv6 server receives the message and replies with a DHCPv6 announcement message with server information; S4: the switching device judges whether the DHCPv6 server feature information in the DHCPv6 announcement message matches the legal DHCPv6 server feature; S5: according to the step S4 According to the matching results, different protection measures are taken to actively prevent DHCPv6 server spoofing. The solution is simple and easy to implement, and the illegal DHCPv6 server is found through active detection, which ensures the security of the network.

Description

Technical field [0001] The present invention relates to the field of computer data communication, in particular to a system and method for preventing DHCPv6 server cheating. Background technique [0002] With the expansion of the network scale and the increase of network complexity, the network configuration becomes more and more complicated, and there are often situations in which the location of computers changes and the number of computers exceeds the IP addresses that can be allocated. The Dynamic Host Configuration Protocol Version (DHCP) was developed to meet these needs. [0003] In the case of a large network, the IPv6 protocol has the characteristic of huge address space, but at the same time, the 128-bit IPv6 address requires efficient and reasonable automatic address allocation and management strategies. The IPv6 address stateless address configuration protocol is currently widely used IPv6 address automatic configuration protocol. Hosts configured with this protocol on...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/12
Inventor 梁小冰向阳朝
Owner 北京神州数码云科信息技术有限公司