WO2006066497A1 - A method for updating the host’s dns during the ipv6 stateless address configuration and the apparatus thereof - Google Patents
A method for updating the host’s dns during the ipv6 stateless address configuration and the apparatus thereof Download PDFInfo
- Publication number
- WO2006066497A1 WO2006066497A1 PCT/CN2005/002247 CN2005002247W WO2006066497A1 WO 2006066497 A1 WO2006066497 A1 WO 2006066497A1 CN 2005002247 W CN2005002247 W CN 2005002247W WO 2006066497 A1 WO2006066497 A1 WO 2006066497A1
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- Prior art keywords
- host
- router
- option
- message
- dns
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L45/00—Routing or path finding of packets in data switching networks
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/45—Network directories; Name-to-address mapping
- H04L61/4505—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols
- H04L61/4511—Network directories; Name-to-address mapping using standardised directories; using standardised directory access protocols using domain name system [DNS]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5076—Update or notification mechanisms, e.g. DynDNS
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
- H04L69/167—Adaptation for transition between two IP versions, e.g. between IPv4 and IPv6
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2101/00—Indexing scheme associated with group H04L61/00
- H04L2101/60—Types of network addresses
- H04L2101/618—Details of network addresses
- H04L2101/659—Internet protocol version 6 [IPv6] addresses
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L61/00—Network arrangements, protocols or services for addressing or naming
- H04L61/50—Address allocation
- H04L61/5092—Address allocation by self-assignment, e.g. picking addresses at random and testing if they are already in use
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L69/00—Network arrangements, protocols or services independent of the application payload and not provided for in the other groups of this subclass
- H04L69/16—Implementation or adaptation of Internet protocol [IP], of transmission control protocol [TCP] or of user datagram protocol [UDP]
Definitions
- the present invention relates to IPv6 applications in communication networks and computer networks, and more particularly to
- IPv6 deployment greatly reduces the address pressure that exists in IPv4, but 128-bit
- IPv6 addresses are far less well remembered than IPv4 addresses, and domain names will be more widely used in IPv6.
- Method 1 requires manual intervention, which is difficult for a large number of hosts.
- Method 2 is only used for hosts configured with DHCP for address configuration.
- IPv6 there are two types of address configuration, namely stateful address configuration and stateless address configuration.
- Stateful address configuration refers to the configuration of addresses and other information through the DHCP protocol. Similar to IPv4, this method requires a DHCP server. The host obtains the address configuration information from the DHCP server through the client/server mode.
- Stateless address autoconfiguration is an IPv6-specific address configuration method.
- the network interface that needs to be configured with an address first uses the Neighbor Discovery mechanism to obtain a link-local address. After the network interface obtains the link-local address, it will send a Router Solicitation (RS) to the full-router multicast address. The local router will announce one or more messages through the Router Advertisement (RA).
- RS Router Solicitation
- RA Router Advertisement
- a global address prefix is transmitted to the host, and the host combines the obtained address prefix with the interface identifier to obtain a global address.
- the router can also directly send RA messages periodically, and the host is getting the message. Configure the global address of the interface based on the address prefix.
- IP v6 The stateless address configuration method adopted in IP v6 is one of the advantages of IP v6. It enables the host device to obtain an IPv6 address without manual configuration and does not need to maintain a DHCP server.
- the method does not specify the matching relationship between the domain name suffix information and the address prefix, if the router issues multiple address prefixes, the host will not be able to identify the correct matching relationship;
- the purpose of the present invention is to provide a reliable and effective DNS update method for a host in an IPv6 stateless address configuration, so that the host can correctly identify the matching relationship between the domain name suffix information and the address prefix, and implement the DNS between the host and the router.
- Negotiation of domain name updates; and DNS replacement by the router instead of the host will make DNS updates simple and secure.
- the basic idea of the present invention is: Define a new RS/RA option - "host FQDN" option, which allows the host to negotiate with the router for DNS domain name updates, ie it can be updated by the host, Can be updated by the router. At the same time, the matching relationship between the domain name suffix information and the address prefix in the RA message is specified, so that the host can easily identify which address matches the domain name suffix.
- the present invention provides a DNS update method for a host in an IPv6 stateless address configuration, which is characterized by: Adding an option to the RS message sent by the host and/or the RA message sent by the router, the option includes information for host DNS update negotiation,
- the host negotiates with the router to determine that the mapping between the host global address and the full domain name of the host is registered with the DNS server by the host or router to complete the DNS update of the host.
- the present invention also provides a DNS update method for a host in an IPv6 stateless address configuration, which is characterized by:
- the option in the RA message contains the domain name suffix information of the host.
- the option is placed after the corresponding one or more address prefix options, indicating that the option matches the one or more address prefixes.
- the host uses the domain name suffix information to form its full domain name, uses the global address constructed by the matched address prefix, maps its full domain name to the global address, registers the server, and completes the DNS update of the host.
- the present invention also provides an IP v6 stateless address configuration system, including a host and a router, the host includes a network interface module, a processing module, and a storage module, the router includes a network interface module, a processing module, and a storage module, and features thereof
- the processing module of the host sends an RS message through the network interface module of the host
- the processing module of the router sends an RA message through the network interface module of the router, where the RS message and/or the RA message includes an option, and the option includes the DNS update for the host.
- the negotiated information through the respective processing module, the network interface module, and the storage module, according to the information, the host negotiates with the router to determine that the mapping between the host global address and the host full domain name is registered by the host or router to the DNS server, and the completion is completed. Host DNS update.
- the invention also provides a host for an IP v6 stateless address configuration system, comprising a network interface module, a processing module, and a storage module, the system further comprising a router, the router comprising a network interface module, a processing module, and a storage Module, which is characterized by:
- the processing module of the host sends an RS message through the network interface module of the host, and receives
- the processing module of the router sends an RA message through the network interface module of the router, and the RS message and/or the RA message includes an option, and the option includes information for the host DNS update negotiation.
- the host communicates with the router through its processing module, network interface module, and storage module through its processing module, network interface module, and storage module.
- the DNS server registers to complete the DNS update of the host.
- the invention also provides a router for use in an IPv6 stateless address configuration system, comprising a network interface module, a processing module, and a storage module, the system further comprising a host, the host comprising a network interface module, a processing module, and a storage module , which is characterized by:
- the processing module of the router sends an RA message through the network interface module of the router, and the RS message and/or the RA message includes an option, and the option includes the host DNS.
- Update the negotiated information
- the router negotiates with the host through its processing module, network interface module, and storage module through its processing module, network interface module, and storage module, and the server registers to complete the DNS update of the host.
- Fig. 1 is a workflow diagram showing an example of performing DNS update by an IPv6 router in the present invention.
- FIG. 2 is a schematic diagram of a workflow of taking a host to perform DNS update in the present invention.
- 3 is a schematic block diagram of a host and a router in accordance with the present invention. detailed description
- FIG. 3 shows a schematic block diagram of a host and a router in accordance with the present invention, wherein the host 31 and Router 32 receives and receives RS messages and RA messages through network interface modules 311 and 321 . Both processing modules 312 and 322 and storage modules 313 and 323 participate in their respective operations.
- DNS updates can be made by host 31 or by router 32 instead of host 31.
- DNS updates include domain name to address mapping (forward mapping) updates and address to domain name mapping (reverse mapping) updates.
- forward mapping domain name to address mapping
- reverse mapping domain name mapping
- the host 31 and the router 32 can perform forward, reverse or forward and reverse updates, but in practice, not all pairs are meaningful.
- the present invention assumes that the DNS update operates in the following two modes:
- IPv6 Router Updates The definitions of the AAAA resource records (ie, forward mapping) and PTR resource records (ie, reverse mapping) and PTR resource records are primarily defined for security reasons. The negotiation of the DNS update mentioned later will specifically refer to the negotiation of updating the AAAA resource record and the PTR resource record.
- the router or host In order to perform DNS domain name update, the router or host needs to know the full domain name (FQDN) corresponding to an IPv6 address.
- the "Host FQDN” option makes the host and router aware of this information, and can negotiate which DNS to perform according to the flag. Update.
- This selection can only be included in RS and RA messages.
- the minimum length is 4 bytes.
- Flag Domain is used to negotiate the DNS domain name update between Host 31 and Router 32 and to define the number of matches.
- the definition of the flag field is as follows:
- the RV field is a reserved bit that can be used for future expansion.
- MNUM is the number of matching fields: The size is 4-bits, which is used to define an FQDN option. The maximum number of address prefixes that can be matched, ranging from 1 to 16.
- R bit If the router wants to perform DNS update instead of the host, then when it sends the "host FQDN" option, the R bit is set to 1, otherwise the R bit is 0.
- H bit The host informs the router to replace it with DNS update by setting the H bit.
- the R bit is 0 and the host is not capable of DNS registration, it will set the R bit and the H bit in the returned RS message. Otherwise, the R bit is set to 0 and the H bit is also set to 0.
- the domain name field in the description option of the domain name in the option may transmit part of the domain name or the full domain name.
- the host uses the full domain name or part of the domain name, that is, the host name; and the router uses the option when carrying the option in the RA message.
- Domain name which is the domain name suffix.
- the host 31 can only carry the "host FQDN” option when the processing module 312 sends an RS message through the network interface module 311.
- Router 32 may only carry the "host FQDN” option when processing module 322 sends an RA message through network interface module 321.
- the router sends the "host FQDN” option, through the processing module 322 and the storage module 323, the "host FQDN” option must match an address prefix option, and the address prefix does not have to match a "host FQDN” option.
- the "host FQDN” option must be placed after one or more address prefix options to indicate that it matches one or more of the address prefixes.
- the MNUM field in the option is used to indicate the number of address prefixes that match the option.
- the address prefix that is not matched must be placed after the matching address prefix and the "host FQDN" option.
- This method can make it easy for the host to identify the match between the address prefix and the domain name suffix, so that the host can map its full domain name with the global address constructed with the matching address prefix, so that the processing module 312 of the host can pass the network interface.
- the mapping is updated when the module 311 performs a DNS update.
- This matching method can also be used in other negotiation methods or non-negotiated DNS update methods. If the router is set up for DNS updates, it can carry or not carry the domain name field when sending the "host FQDN" option.
- the processing module 312 and the storage module 313 map the address generated by the address prefix and the domain name in the "host FQDN" option matching the address prefix, and the mapping may be based on the set flag field.
- the R and H bits in the middle are updated by the host or router.
- the host 31 receives an RA message through the network interface 31 1 , and the RA message may be a response of the router 32 to the RS message sent by the host, or may be a periodic RA broadcast of the router.
- the router will set the corresponding flag bit by the processing module 322 according to its configuration. If the host 31 supports the "host FQDN" option, it will be carried in the RS message.
- the "host FQDN” option, and the corresponding flag bit is set by the processing module 312 according to the method in the flag bit definition. If the R bit is 1, that is, the router performs DNS update, the host sends an RS message carrying the "host FQDN" option to the router.
- the source address must be the address generated by the address prefix paired with the domain name. If there are more than two pairs, then for each pairing, it must send an RS message.
- the router then performs a DNS update based on the corresponding mapping, as shown in Figure 1. If R is 0, the host that supports DNS domain name registration must register the domain name by itself, that is, map the full domain name to the global address formed by the matching address prefix, and update the mapping, as shown in Figure 2. Hosts that do not support DNS domain name registration can notify the router to register it by sending the "host FQDN" option of H bit and R bit 1.
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- Computer Networks & Wireless Communication (AREA)
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Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/722,180 US8879418B2 (en) | 2004-12-20 | 2005-12-20 | Method and apparatus for updating DNS of host in IPv6 stateless address configuration |
KR1020077016527A KR101227203B1 (ko) | 2004-12-20 | 2005-12-20 | IPv6 비상태형 어드레스 설정 동안에 호스트의DNS를 갱신하는 방법 및 그 장치 |
EP05820018A EP1841183B1 (en) | 2004-12-20 | 2005-12-20 | A method for updating the host's dns during the ipv6 stateless adress configuration and the apparatus thereof |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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CN200410093288.8 | 2004-12-20 | ||
CNB2004100932888A CN100556029C (zh) | 2004-12-20 | 2004-12-20 | IPv6无状态地址配置中主机的DNS更新方法和装置 |
Publications (1)
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WO2006066497A1 true WO2006066497A1 (en) | 2006-06-29 |
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ID=36601381
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PCT/CN2005/002247 WO2006066497A1 (en) | 2004-12-20 | 2005-12-20 | A method for updating the host’s dns during the ipv6 stateless address configuration and the apparatus thereof |
Country Status (5)
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US (1) | US8879418B2 (zh) |
EP (1) | EP1841183B1 (zh) |
KR (1) | KR101227203B1 (zh) |
CN (1) | CN100556029C (zh) |
WO (1) | WO2006066497A1 (zh) |
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2004
- 2004-12-20 CN CNB2004100932888A patent/CN100556029C/zh active Active
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2005
- 2005-12-20 KR KR1020077016527A patent/KR101227203B1/ko active IP Right Grant
- 2005-12-20 WO PCT/CN2005/002247 patent/WO2006066497A1/zh active Application Filing
- 2005-12-20 EP EP05820018A patent/EP1841183B1/en not_active Ceased
- 2005-12-20 US US11/722,180 patent/US8879418B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100369326B1 (ko) * | 2001-03-20 | 2003-01-24 | 한국전자통신연구원 | 정보가전의 네트워크 구성을 위해 정보가전을 도메인 이름서비스에 등록하는 방법과 그를 이용한 원격 제어 방법 |
WO2003107627A1 (fr) * | 2002-06-14 | 2003-12-24 | France Telecom Sa | Systeme de consultation et/ou mise a jour de serveurs dns et/ou d’annuaires ldap |
US20040083306A1 (en) * | 2002-10-24 | 2004-04-29 | International Business Machines Corporation | Method and apparatus for maintaining internet domain name data |
Non-Patent Citations (1)
Title |
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See also references of EP1841183A4 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100508597C (zh) * | 2007-04-23 | 2009-07-01 | 中国科学院计算技术研究所 | 一种将用户ip地址同用户等级结合的视频点播方法 |
WO2008157267A1 (en) * | 2007-06-15 | 2008-12-24 | Qualcomm Incorporated | Method and apparatus for dns update triggered ipv6 neighbor advertisement |
US9602332B2 (en) | 2007-06-15 | 2017-03-21 | Qualcomm Incorporated | Method and apparatus for DNS update triggered IPv6 neighbor advertisement |
Also Published As
Publication number | Publication date |
---|---|
CN100556029C (zh) | 2009-10-28 |
US20090274062A1 (en) | 2009-11-05 |
EP1841183B1 (en) | 2013-03-06 |
KR20070097517A (ko) | 2007-10-04 |
KR101227203B1 (ko) | 2013-01-28 |
EP1841183A1 (en) | 2007-10-03 |
EP1841183A4 (en) | 2009-12-23 |
US8879418B2 (en) | 2014-11-04 |
CN1798136A (zh) | 2006-07-05 |
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