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Method for creating neighbor discovery table item and server

A neighbor discovery and server technology, applied in the field of network communication, can solve problems such as high management costs, few systems, and lack of deployment

Active Publication Date: 2009-11-18
NEW H3C TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0024] However, the static address allocation scheme has high management costs for large-scale IPv6 deployment, while the SEND scheme requires the current equipment and hosts to upgrade the IPv6 protocol stack to support the encryption authentication process. Currently, there are few supported systems and the possibility of deployment is lacking. sex

Method used

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  • Method for creating neighbor discovery table item and server
  • Method for creating neighbor discovery table item and server
  • Method for creating neighbor discovery table item and server

Examples

Experimental program
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Effect test

Embodiment Construction

[0043] The core idea of ​​the present invention is: the DHCPv6 server that implements address allocation by means of prefix allocation creates secure ND entries by listening to ND messages and prefixes allocated by itself, thereby ensuring the security of equipment and networks.

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below.

[0045] image 3 It is a flowchart of a method for creating an ND entry in an embodiment of the present invention. like image 3 As shown, the method includes the following steps:

[0046] In step 301, the DHCPv6 server generates a legal prefix table, and legal prefixes in the legal prefix table are prefixes allocated by the DHCPv6 server.

[0047] In one embodiment of the present invention, the legal prefix table is as shown in Table 2:

[0048] legal prefix

Prefix Announcement Issue Time

prefix lifetime

...

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PUM

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Abstract

The invention discloses a method for creating a neighbor discovery (ND) table item, comprising the following steps: a DHCP v6 server generates a legal prefix table according to the assigned prefix; the DHCPv6 server generates an address binding table according to the received duplication address detection neighbor solicitation (DAD NS) message and the legal prefix table; the DHCPv6 server generates an ND table according to the received address resolution neighbor solicitation (NS) / neighbor advertisement (NA) messages and the address binding table. The invention further discloses a DHCPv6 server. The technical proposal of the invention can ensure the safety of the ND table item created by the DHCPv6 server.

Description

technical field [0001] The invention relates to the technical field of network communication, in particular to a method for creating neighbor discovery table items and a DHCPv6 server. Background technique [0002] The Dynamic Host Configuration Protocol for IPv6 (DHCPv6, Dynamic Host Configuration Protocol for IPv6) is a protocol designed for the IPv6 addressing scheme to assign IPv6 addresses and other network configuration parameters to hosts. [0003] DHCPv6 adopts the client / server communication mode. The client submits a configuration request to the DHCPv6 server, and the DHCPv6 server returns the corresponding configuration information such as the IP address assigned to the client to realize the dynamic configuration of the IP address and other information. Specifically, it can be summarized as: [0004] 1) The client initiates a request (Solicit) and sends a multicast message with the purpose of FF02::1:2 to the network segment; [0005] 2) If there is a DHCPv6 ser...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/12H04L12/56
Inventor 林涛
Owner NEW H3C TECH CO LTD
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