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Allocation method and device of Internet protocol version 6 (IPv6) address prefixes

An allocation method and a technology of an allocation device, which are applied in the field of communication, can solve problems such as inflexible allocation of IPv6 address prefixes, and achieve the effect of flexible allocation

Active Publication Date: 2011-04-06
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The main purpose of the present invention is to provide a method and device for allocating IPv6 address prefixes, to at least solve the above-mentioned inflexible problem of allocating IPv6 address prefixes

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  • Allocation method and device of Internet protocol version 6 (IPv6) address prefixes
  • Allocation method and device of Internet protocol version 6 (IPv6) address prefixes

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Embodiment Construction

[0021] Hereinafter, the present invention will be described in detail with reference to the drawings and examples. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0022] In order to better understand the embodiments of the present invention, the relevant terms involved in the embodiments are explained as follows:

[0023] 1. Stateless address allocation of V6 prefix (PREFIX) and neighbor discovery protocol

[0024] The representation method of the IPv6 address prefix is ​​similar to that of the IPv4 address prefix. The IPv6 address prefix is ​​expressed as: IPv6 address / prefix length, where the prefix length is a decimal number used to determine how many bits form the prefix from the leftmost end of the IPv6 address. For example, 12AB:0D86:5454:6634:: / 32 is a correct prefix. Prefix Discovery: Nodes use this mechanism to obtain link-local address prefixes and...

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Abstract

The invention discloses an allocation method and device of Internet protocol version 6 (IPv6) address prefixes. The allocation method comprises the following steps: carrying out CLASS-MAP classification on virtual private network (VPN) users belonging to the same CIP user access group or different CIP user access groups; and allocating the same IPv6 address prefixes to the VPN users of the same class. By adopting the CLASS-MAP mode, the invention allocates the V6 prefixes to the VPN users so that the allocation of the V6 prefixes can be independent of domains or CIP user access groups, thereby realizing the flexible allocation of the V6 prefixes.

Description

technical field [0001] The present invention relates to the field of communications, in particular to a method and device for allocating IPv6 address prefixes. Background technique [0002] In L2VPN (Layer 2 VPN), CIP is the mapping virtual interface corresponding to the UNI according to different CE-VLAN mapping policies. There can be multiple mapping policies under one UNI (User Network Interface, user network interface), which are respectively mapped to different CE-VLAN mapping policies. CIP (ClientInterface Provider, provided by the user interface); and the access link AC (AttachmentCircuit), that is, the connection between CE (Client Edge, user edge device) and PE (Provider Edge, operator edge device), it can be The actual physical interface can also be a virtual interface. After a VPN (Virtual Private Network, virtual private network) user accesses through a CIP virtual interface, the IPV6 address is obtained from the V6 prefix assigned by the device through the V6 (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/12H04L29/06
CPCH04L29/12216H04L61/6059H04L61/6068H04L29/12915H04L61/2007H04L29/12933H04L61/5007H04L2101/659H04L2101/668
Inventor 王瑾
Owner ZTE CORP
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