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Method of increasing safety of address conflict detection process

A technology of address conflict detection and address conflict, which is applied in the Internet field, can solve problems such as ARP spoofing, address conflict concealment, address conflict false report, etc., and achieve the effect of improving security, simple implementation, and small changes

Active Publication Date: 2011-01-19
TSINGHUA UNIV
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  • Abstract
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Problems solved by technology

[0007] The purpose of the present invention is to at least solve one of the above-mentioned technical defects, especially by adding a neutral server in the subnet to solve the possible security problems such as address conflict concealment, address conflict false report, ARP spoofing, etc. Hidden danger solution to improve the security of the address conflict detection process

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  • Method of increasing safety of address conflict detection process
  • Method of increasing safety of address conflict detection process
  • Method of increasing safety of address conflict detection process

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Embodiment Construction

[0017] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0018] In order to achieve the purpose of the present invention, the present invention proposes a method for improving the security of the address conflict detection process, comprising the following steps: during the conflict detection process of the host in the subnet, the neutral server receives the duplicate address detection DAD sent by the host information; the neutral server records the updated DAD information, judges the conflict according to the address information currently in use and issues an address conflict announcement; the...

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Abstract

The embodiment of the invention provides a method of increasing the safety of the address conflict detection process. The method comprises the following steps: when a host in a subnet performs a conflict detection, a neutral server receives the duplication address detection (DAD) information sent from the host; the neutral server records the updated DAD information, performs a conflict judgment according to the currently used address information and sends an address conflict notice; the host in the subnet sends an address resolution message during the address resolution process, and the neutral server judges whether the IP address of the host is legal according to the local address information. In the scheme provided by the invention, the neutral server is added in the subnet so as to solve the possible security threats of address conflict concealment, address conflict misrepresentation, ARP deception and the like during the stateless address autoconfiguration process of the Ipv6 network, and increasing the safety of the address conflict detection process.

Description

technical field [0001] The invention relates to the technical field of the Internet, in particular, the invention relates to a method for improving the security of an address conflict detection process. Background technique [0002] As the crisis of address space exhaustion under the IPv4 protocol gradually intensifies, the IPv6 protocol, which can provide a larger address space in the most direct way and solve the problem of address space exhaustion under the IPv4 protocol, has emerged as the times require. The available addresses under the IPv6 protocol are theoretically 2^96 times that of IPv4, and such a huge difference in the number of addresses also determines that the address allocation method under the IPv6 protocol must have different characteristics from IPv4. [0003] The IPv6 protocol is the core protocol of the next-generation Internet. It solves many defects exposed by the IPv4 protocol, such as scarcity of addresses, huge routing tables, and insufficient suppo...

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Application Information

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IPC IPC(8): H04L29/12H04L29/06H04L12/56
Inventor 毕军姚广胡萍王森
Owner TSINGHUA UNIV
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