GB/T 45282-2025IPv6 address assignment and encoding rules — General requirements (English PDF)
IPv6地址分配和编码规则 总体要求
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
February 28, 2025
Implementation date
June 1, 2025
Scope
GB/T 45282-2025 is the English-translated version of IPv6地址分配和编码规则 总体要求.
GB/T 45282-2025 is the Chinese national standard covering how IPv6 addresses are handed out and written in China — the hexadecimal and prefix notation, the principles behind an allocation plan, the rules for unicast, multicast and anycast addresses, the choice between those rules for a given network, and the management side of registering, recording and reclaiming addresses, which is where a 128-bit space stops being unlimited in practice. It covers addresses obtained from domestic registries and from the international bodies alike. First edition, under the Ministry of Industry and Information Technology. In force from 1 June 2025. Issued on 28 February 2025, it has been in force since 1 June 2025.
Document preview — GB/T 45282-2025
National Standard of the People's Republic of China
- ICS
- 33.040
- Classification
- L 78
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- PrefaceIII
- 1 Scope1
- 2 Normative references1
- 3 Terms and Definitions1
- 4 Abbreviations2
- 5 IPv6 address representation3
- 5.1 Hexadecimal representation of numbers3
- 5.2 Address Prefix Notation3
- 6 IPv6 address allocation and encoding principles3
- 7 IPv6 address allocation and encoding rules4
- 7.1 General4
- 7.2 IPv6 unicast address5
- 7.3 IPv6 multicast address7
- 7.4 IPv6 Anycast Address8
- 8 IPv6 address allocation and encoding rules selection8
- 9 IPv6 address management requirements8
- Reference10
Foreword
This document is in accordance with the provisions of GB/T 1.1-2020 "Guidelines for standardization work Part 1: Structure and drafting rules for standardization documents" Drafting.
Please note that some of the contents of this document may involve patents. The issuing organization of this document does not assume the responsibility for identifying patents.
This document was proposed by the Ministry of Industry and Information Technology of the People's Republic of China.
This document was prepared by the National Communications Standardization Technical Committee (SAC/TC485) and the National Cyber Security Standardization Technical Committee (SAC/TC260). Centralized.
This document was drafted by: China Academy of Information and Communications Technology, China Internet Network Information Center, National Computer Network Emergency Response Technical Processing Association Coordination Center, China Telecom Group Co., Ltd., China Mobile Communications Group Co., Ltd., China Unicom Group Co., Ltd., China Science and Technology College Computer Network Information Center, China National Petroleum and Natural Gas Pipeline Network Corporation, Huawei Technologies Co., Ltd., ZTE Corporation company.
The main drafters of this document are: Wang Zhifeng, Li Yuan, Wu Yipo, Wang Lidong, Shen Zhi, Liu Shiying, Ma Qiongfang, Wang Haijun, Qu Jiewu, Wang Wenlei, Li Jingjing, Zhou Jihua, Wang Xuan, Zheng Zhongmin, Tu Libiao, Liu Yongwei, Pei Changhua, Wang Li.
General requirements for IPv6 address allocation and encoding rules
1 Scope
This document specifies the rules for allocating and encoding IPv6 addresses used in China.
This document applies to the allocation and coding of all IPv6 addresses used in China, including addresses applied for from domestic address allocation agencies.
The allocation and coding of addresses and addresses applied for from international organizations with IP address management rights.
2 Normative references
This document has no normative references.
3 Terms and definitions
The following terms and definitions apply to this document.
3.1 IPv6 addressIPv6address
A 128-bit identifier used to identify an IPv6 network interface or a group of IPv6 network interfaces.
3.2 node
A device that uses IPv6.
3.3 link
A connection from one node to an adjacent node without any other routing forwarding nodes in between.
3.4 interface
The connection between a node and a link. [Source. YD/T 2415-2012]
3.5 virtualinterface
An interface established through configuration that enables data exchange functions.
3.6 Site
A collection of nodes, links, etc., with an independent global routing prefix.
Example. The site is shown in Figure 1.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 17 pages — is available in the English PDF.
Referenced standards
Editions of GB/T 45282
| Edition | Title | Revision | Status |
|---|---|---|---|
| GB/T 45282-2025 | IPv6 address assignment and encoding rules - General requirements | current edition | Current |
This page sells the current edition, GB/T 45282-2025. Earlier editions are listed for reference only.
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