WO2015131327A1 - IPv6地址分配方法及装置 - Google Patents

IPv6地址分配方法及装置 Download PDF

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Publication number
WO2015131327A1
WO2015131327A1 PCT/CN2014/072840 CN2014072840W WO2015131327A1 WO 2015131327 A1 WO2015131327 A1 WO 2015131327A1 CN 2014072840 W CN2014072840 W CN 2014072840W WO 2015131327 A1 WO2015131327 A1 WO 2015131327A1
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WO
WIPO (PCT)
Prior art keywords
prefix
authorization
sent
user equipment
home gateway
Prior art date
Application number
PCT/CN2014/072840
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English (en)
French (fr)
Inventor
刘德
张劲峰
Original Assignee
华为终端有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 华为终端有限公司 filed Critical 华为终端有限公司
Priority to EP14884602.5A priority Critical patent/EP3104580A4/en
Priority to PCT/CN2014/072840 priority patent/WO2015131327A1/zh
Priority to CN201480001418.2A priority patent/CN104380694A/zh
Priority to US15/123,448 priority patent/US10044672B2/en
Publication of WO2015131327A1 publication Critical patent/WO2015131327A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/50Address allocation
    • H04L61/5092Address allocation by self-assignment, e.g. picking addresses at random and testing if they are already in use
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/50Address allocation
    • H04L61/5007Internet protocol [IP] addresses
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00Data switching networks
    • H04L12/66Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00Indexing scheme associated with group H04L61/00
    • H04L2101/30Types of network names
    • H04L2101/35Types of network names containing special prefixes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00Indexing scheme associated with group H04L61/00
    • H04L2101/60Types of network addresses
    • H04L2101/604Address structures or formats
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00Indexing scheme associated with group H04L61/00
    • H04L2101/60Types of network addresses
    • H04L2101/618Details of network addresses
    • H04L2101/622Layer-2 addresses, e.g. medium access control [MAC] addresses
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00Indexing scheme associated with group H04L61/00
    • H04L2101/60Types of network addresses
    • H04L2101/618Details of network addresses
    • H04L2101/659Internet protocol version 6 [IPv6] addresses
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00Indexing scheme associated with group H04L61/00
    • H04L2101/60Types of network addresses
    • H04L2101/668Internet protocol [IP] address subnets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2101/00Indexing scheme associated with group H04L61/00
    • H04L2101/60Types of network addresses
    • H04L2101/677Multiple interfaces, e.g. multihomed nodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L61/00Network arrangements, protocols or services for addressing or naming
    • H04L61/50Address allocation
    • H04L61/5061Pools of addresses

Definitions

  • the embodiments of the present invention relate to communication technologies, and in particular, to an IPv6 address allocation method and apparatus. Background technique
  • the next generation IP protocol (Internet Protocol Version 6, IPv6 for short) is the next generation Internet protocol designed by the Internet Engineering Task Force (IETF) to replace the current IPv4 protocol to solve the problem of insufficient address space.
  • IETF Internet Engineering Task Force
  • the home gateway can access multiple broadband access servers.
  • the Broadband Remote Access Server (BRAS) and/or the Gateway GPRS Support Node (GGSN) connect the user equipment to the network, and any BRAS or any GGSN is connected to the home gateway to form a The link, that is, the home gateway accesses the user equipment to the network through multiple links.
  • BRAS Broadband Remote Access Server
  • GGSN Gateway GPRS Support Node
  • the home gateway is connected to the BRAS and the GGSN at the same time.
  • the BRAS and the GGSN pre-pass the sub-protocol in the Internet version of the Internet Control Message Protocol Version 6, ICMPv6, Router Advitication (abbreviation).
  • the RA) protocol sends an ICMPv6 message carrying a Prefix Delegation (PD) to the home gateway.
  • the authorization prefix is a data frame encapsulated in an ICMPv6 message.
  • the frame format of the authorization prefix is shown in Figure 2.
  • the 56-bit address information of the Prefix field is the first 56 bits of the IPv6 address that the network side server authorizes the BRAS or GGSN, and the first 56 bits of the IPv6 address can also be identified.
  • the home gateway After the user equipment sends a connection request to the home gateway, the home gateway arbitrarily selects one of the first 56 prefixes of the plurality of IPv6 addresses sent by the BRAS or the GGSN, and carries the authorization of the first 56 bits of the IPv6 address according to the preset rule.
  • the prefix of the Prefix field of the prefix is added with the following eight bits to form an authorization prefix that carries the first 64 bits of the IPv6 address.
  • the prefix of the first 64 bits of the IPv6 address is encapsulated in the ICMPv6 message and sent through the RA protocol.
  • the user equipment sends the last 64 bits of the IPv6 address according to the MAC address of the device and the EUI-64 rule, and combines the 64-bit prefix with the prefix prefix of the 64-bit IPv6 address and the 64-bit address of the IPv6 address.
  • a 128-bit IPv6 address is formed, and the network is accessed through a link containing an authorization prefix identifier of the first 56 bits of the IPv6 address included in the IPv6 address.
  • the user equipment can be connected to the network through multiple links, but can only access the link corresponding to the IPv6 address and the identifier of the first 56 bits of the IPv6 address corresponding to the IPv6 address at a certain time.
  • the network cannot access the network through the rest of the links, resulting in low network resource utilization.
  • An aspect of the present invention provides an IPv6 address allocation method, including: receiving a first authorization prefix sent by at least two network access devices, where different first prefixes sent by the network access device are not mutually the same;
  • Another aspect of the present invention provides a method for allocating an IPv6 address, including: receiving a second authorization prefix sent by a home gateway, where the second authorization prefix is based on the received at least two network accesses by the home gateway. a prefix generated by the first authorization prefix sent by the device, where the first authorization prefix sent by the network access device is different from each other, and the second authorization prefix and the first authorization prefix are in one-to-one correspondence;
  • a home gateway including:
  • a first receiving module configured to receive a first authorization prefix sent by at least two network access devices, where different first prefixes sent by different network access devices are different from each other;
  • a second authorization prefix generating module configured to generate a second authorization prefix according to the received first authorization prefix, where the second authorization prefix and the first authorization prefix are in one-to-one correspondence;
  • a sending module configured to send the generated second authorization prefix to the user equipment, where the user equipment generates an IPv6 address according to the second authorization prefix.
  • a user equipment including:
  • a second receiving module configured to receive a second authorization prefix sent by the home gateway, where the second authorization prefix is a prefix generated by the home gateway according to the received first authorization prefix sent by at least two network access devices;
  • the first authorization prefix sent by the network access device is different from each other, and the second authorization prefix and the first authorization prefix are in one-to-one correspondence;
  • the transceiver is configured to receive a first authorization prefix sent by the at least two network access devices, and the first authorization prefix sent by the network access device is different from each other;
  • the processor is configured to execute the program instructions stored in the memory to: generate a second authorization prefix according to the received first authorization prefix; wherein the second authorization prefix and the first authorization prefix One-to-one correspondence;
  • the transceiver is further configured to send the generated second authorization prefix to the user equipment, where the user equipment generates an IPv6 address according to the second authorization prefix.
  • Another aspect of an embodiment of the present invention is to provide a user equipment, including a receiver and a processor:
  • the receiver is configured to receive a second authorization prefix sent by the home gateway, where the second authorization prefix is a prefix generated by the home gateway according to the received first authorization prefix sent by at least two network access devices;
  • the first authorization prefix sent by the network access device is different from each other, and the second authorization prefix and the first authorization prefix are in one-to-one correspondence;
  • the processor is configured to execute program instructions stored in the memory to: generate an IPv6 address according to the second authorization prefix.
  • Another aspect of the embodiments of the present invention provides an IPv6 address allocation system including the home gateway and the user equipment.
  • the home gateway sends a plurality of second authorization prefixes to the user equipment, so that the user equipment generates multiple IPv6 addresses according to the multiple second authorization prefixes, so that the user equipment is Simultaneously through multiple network links
  • Network access improves network resource utilization.
  • 1 is a signaling diagram of a prior art IPv6 address allocation method
  • 2 is a frame format diagram of a prior art authorization prefix
  • FIG. 3 is a flowchart of an IPv6 address allocation method according to an embodiment of the present invention.
  • FIG. 4 is a frame format diagram of an authorization prefix applied to an IPv6 address allocation method according to another embodiment of the present invention.
  • FIG. 5 is a schematic diagram of a method for allocating an IPv6 address according to another embodiment of the present invention
  • FIG. 6 is a flowchart of a method for allocating an IPv6 address according to another embodiment of the present invention. Structure diagram
  • FIG. 8 is a structural diagram of a home gateway according to another embodiment of the present invention.
  • FIG. 9 is a structural diagram of a user equipment according to an embodiment of the present invention.
  • FIG. 10 is a structural diagram of an IPv6 address allocation system according to an embodiment of the present invention. detailed description
  • FIG. 3 is a flowchart of an IPv6 address allocation method according to an embodiment of the present invention.
  • the embodiment of the present invention is applicable to an IPv6 address prefix allocated by the home gateway to the user equipment when the user equipment accesses the network, and combines the IPv6 address prefix and the IPv6 address generated by the user equipment to form an IPv6 address of the user equipment, and accesses the IPv6 address according to the IPv6 address.
  • the network, the specific IPv6 address allocation method is as follows:
  • Step 301 Receive a first authorization prefix sent by at least two network access devices, where different first prefixes sent by different network access devices are different from each other;
  • the home gateway is connected to the plurality of network access devices, and the plurality of network access devices respectively send the first authorization prefix to the home gateway, and the first authorization prefixes sent by the multiple network access devices are different from each other, the first The authorization prefix includes an IPv6 address prefix that the network side server authorizes the network access device to allocate.
  • Step 302 Generate a second authorization prefix according to the received first authorization prefix, where the second authorization prefix and the first authorization prefix are in one-to-one correspondence;
  • the home gateway adds 8-bit data after the first authorization prefix, and the 56-bit first grant
  • the weight prefix is extended to a 64-bit second authorization prefix, and the 8-bit data is randomly generated by the home gateway.
  • the specific generation process may be any one of the prior art methods.
  • Step 303 Send the generated second authorization prefix to the user equipment, where the user equipment generates an IPv6 address according to the second authorization prefix.
  • the home gateway sends the generated second authorization prefix to the user equipment at the same time or in a wholesale manner.
  • the user equipment generates a suffix of the IPv6 address according to the MAC address of the device and the EUI-64 rule, and respectively respectively uses the second authorization prefix.
  • the suffix of the IPv6 address is combined into a plurality of 128-bit IPv6 addresses, and the user equipment accesses the network through multiple network links according to multiple 128-bit IPv6 addresses.
  • the user gateway sends a plurality of second authorization prefixes to the user equipment, so that the user equipment generates multiple IPv6 addresses according to the multiple second authorization prefixes, so that the user equipment can pass multiple networks at the same time.
  • the link performs network access, which improves network resource utilization.
  • the sending the generated second authorization prefix to the user equipment includes: generating a unique corresponding prefix identifier according to the second authorization prefix; and generating the second authorization prefix And the corresponding prefix identifier is sent to the user equipment.
  • the home gateway After generating a plurality of corresponding second authorization prefixes, the home gateway generates a unique corresponding prefix identifier for each of the second authorization prefixes, and generates a plurality of the second authorization prefixes. And the corresponding prefix identifiers are sent to the user equipment.
  • the embodiment of the present invention generates a unique prefix identifier for each of the second authorization prefixes, so that the user equipment can identify each second authorization prefix from the same protocol packet carrying multiple second authorization prefixes.
  • FIG. 4 is a frame format diagram of an authorization prefix applied to an IPv6 address allocation method according to another embodiment of the present invention.
  • the prefix identifier is stored in a reserved field of a data frame carrying the second authorization prefix, and the data frame is encapsulated in a protocol packet.
  • the frame format of the data frame corresponding to the second authorization prefix is used in the embodiment of the present invention
  • the "Type” field identifies the type of the data frame, which is used to identify the data frame as an authorization prefix in the embodiment of the present invention
  • the field identifies the total length of the data frame
  • the "Prefix Length” field identifies the length of the "Prefix” field in the data frame
  • the "L” field and the "A” field are the Quality of Service option fields
  • "Reservedl” is reserved for field 1
  • "Val Id Lifetime " field The actual lifetime of the authorization prefix, that is, the IPv6 address prefix authorized by the network side server has a lifetime.
  • the "Preferred Lifetime” field identifies the time less than or equal to the "Val id Lifetime” field identifier. Time, indicating that the new authorization prefix should be obtained from the network side server within the time indicated by the "Preferred Lifetime”field;"x
  • y" identifies the prefix identifier corresponding to the second authorization prefix, if the prefix identifier is n bits, A maximum of 2 "different second authorization prefixes can be identified; the "R e se r V ed2 " field identifies the reserved field 2; the "Prefix” field identifies the IPv6 address prefix.
  • Each of the second authorization prefixes is carried by a data frame as shown in FIG. 4, and the identifier field in each data frame reservation field 2 identifies a different second authorization prefix, and multiple of the data frames are encapsulated in the same
  • the prefix identifier in the example can also use the reserved bits in the reserved field 1.
  • the prefix identifier corresponding to the second authorization prefix is selected in the data frame reservation field, and the multiple data frames are encapsulated in the same protocol packet or encapsulated in different protocol packets. And causing the home gateway to send the generated multiple second prefixes to the user equipment.
  • FIG. 5 is a signaling diagram of an IPv6 address allocation method according to another embodiment of the present invention.
  • the method before the sending the generated second authorization prefix to the user equipment, the method further includes: sending the quantity of the second authorization prefix to the user equipment.
  • the specific steps of the IPv6 address allocation method provided by the embodiment of the present invention are as follows:
  • Step 501 The BRAS sends a first authorization prefix to the home gateway.
  • Step 502 The GGSN sends a first authorization prefix to the home gateway.
  • the home gateway is connected to the BRAS and the GGSN, and the BRAS and the GGSN respectively send the first authorization prefix to the home gateway, and the first authorization prefix is different.
  • the home gateway generates two corresponding second authorization prefixes according to the two first authorization prefixes. .
  • Step 503 The user equipment sends a connection request to the home gateway.
  • the user equipment accesses the network through the home gateway and sends a connection request to the home gateway for network connection.
  • Step 504 The home gateway sends a connection request response to the user equipment.
  • the home gateway sends a connection request response to the user equipment, and the connection request response includes a waiting area The number of the second authorization prefix carried in the ICMPv6 packet sent by the user equipment.
  • Step 505 The home gateway sends two second authorization prefixes to the user equipment.
  • the home gateway sends an ICMPv6 message to the user equipment through the RA protocol.
  • the ICMPv6 message encapsulates two second authorization prefixes.
  • Step 506 The user equipment generates two IPv6 addresses.
  • the user equipment generates two IPv6 addresses according to the two second authorization prefixes.
  • the user gateway sends a plurality of second authorization prefixes to the user equipment, so that the user equipment generates multiple IPv6 addresses according to the multiple second authorization prefixes, so that the user equipment can pass multiple networks at the same time.
  • the link performs network access, which improves network resource utilization.
  • FIG. 6 is a flowchart of an IPv6 address allocation method according to another embodiment of the present invention.
  • the steps of the IPv6 address allocation method provided by the embodiment of the present invention are as follows:
  • Step 601 Receive a second authorization prefix sent by the home gateway, where the second authorization prefix is a prefix generated by the home gateway according to the received first authorization prefix sent by at least two network access devices.
  • the first authorization prefix sent by the network access device is different from each other, and the second authorization prefix and the first authorization prefix are in one-to-one correspondence;
  • the user equipment receives multiple second authorization prefixes sent by the home gateway, and the home gateway is connected to multiple network access devices, and the multiple network access devices respectively send the first authorization prefix to the home gateway, and the multiple network access devices respectively send Each of the first authorization prefixes is different from each other, and the home gateway generates a plurality of corresponding second authorization prefixes by using the IPv6 address prefix included in the first authorization prefix according to the multiple first authorization prefixes, and multiple generated second authorization prefixes are generated.
  • the second authorization prefix is sent to the user equipment.
  • Step 602 Generate an IPv6 address according to the second authorization prefix.
  • the user equipment generates a suffix of the IPv6 address according to the MAC address of the device and the 64-bit Extended Unique Identifier (EUI-64) rule, in advance or after receiving the plurality of the second authorization, and
  • the suffix of the second authorization prefix and the IPv6 address are respectively combined into multiple 128-bit IPv6 addresses, and the user equipment accesses the network through multiple network links according to multiple 128-bit IPv6 addresses.
  • EUI-64 Extended Unique Identifier
  • the user gateway sends a plurality of second authorization prefixes to the user equipment, so that the user equipment generates multiple IPv6 addresses according to the multiple second authorization prefixes, so that the user At the same time, the device can access the network through multiple network links, which improves the utilization of network resources.
  • the receiving the second authorization prefix sent by the home gateway includes: receiving the second authorization prefix sent by the home gateway, and the corresponding prefix identifier, where the prefix identifier is the home gateway basis A unique corresponding identifier generated by the second authorization prefix.
  • the home gateway After generating a plurality of corresponding second authorization prefixes, the home gateway generates a unique corresponding prefix identifier for each of the second authorization prefixes, and generates a plurality of the second authorization prefixes. And the corresponding prefix identifiers are sent to the user equipment.
  • the prefix identifier is stored in a reserved field of a data frame carrying the second authorization prefix, and the data frame is encapsulated in a protocol packet.
  • Each of the second authorization prefixes is carried by a data frame as shown in FIG. 4, and the identifier field in each data frame reservation field 2 identifies a different second authorization prefix, and multiple of the data frames are encapsulated in the same In a protocol packet, if the total length of the plurality of data frames exceeds the maximum length of a protocol packet, the data frame exceeding the maximum length is encapsulated in another identical protocol packet.
  • the prefix identifier in the embodiment of the present invention may also use the reserved bit in the reserved field 1.
  • the method further includes: receiving the number of the second authorization prefix sent by the home gateway.
  • the user equipment Before receiving the multiple second prefixes, the user equipment receives the number of the second authorization prefix sent by the home gateway to predetermine the number of second authorization prefixes sent by the home gateway.
  • the user equipment may identify the received multiple second authorization prefixes by selecting a second authorization prefix in the data frame reservation field. And the plurality of the data frames are encapsulated in the same protocol packet or encapsulated in different protocol packets, so that the home gateway sends the generated multiple second prefixes to the user equipment.
  • the number of the second authorization prefix sent by the home gateway causes the user equipment to predetermine the number of second authorization prefixes that should be received.
  • FIG. 7 is a structural diagram of a home gateway according to an embodiment of the present invention.
  • the home gateway provided by the embodiment of the present invention may perform the process flow provided by the embodiment of the IPv6 address allocation method, where the home gateway 70 includes a first receiving module 71, a second authorization prefix generating module 72, and a sending module 73, where the first receiving The module 71 is configured to receive the first authorization sent by the at least two network access devices.
  • the first authorization prefix sent by the network access device is different from each other;
  • the second authorization prefix generating module 72 is configured to generate a second authorization prefix according to the received first authorization prefix, where The second authorization prefix is in one-to-one correspondence with the first authorization prefix;
  • the sending module 73 is configured to send the generated second authorization prefix to the user equipment, where the user equipment generates an IPv6 address according to the second authorization prefix.
  • the user gateway sends a plurality of second authorization prefixes to the user equipment, so that the user equipment generates multiple IPv6 addresses according to the multiple second authorization prefixes, so that the user equipment can pass multiple networks at the same time.
  • the link performs network access, which improves network resource utilization.
  • FIG. 8 is a structural diagram of a home gateway according to another embodiment of the present invention.
  • the home gateway provided by the embodiment of the present invention may perform the process flow provided by the embodiment of the IPv6 address allocation method.
  • the home gateway 70 further includes a prefix identifier generating module 81 for generating a unique identifier according to the second authorization prefix.
  • Corresponding prefix identifier; the sending module 73 is specifically configured to send the generated second authorization prefix and the corresponding prefix identifier to the user equipment.
  • the prefix identifier sent by the sending module 73 is stored in a reserved field of a data frame carrying the second authorization prefix, and the data frame is encapsulated in a protocol packet.
  • the sending module 73 is further configured to send the second authorization prefix to the user equipment before sending the second authorization prefix generated by the second authorization prefix to the user equipment.
  • the user equipment may identify the received multiple second authorization prefixes by selecting a second authorization prefix in the data frame reservation field. And the plurality of the data frames are encapsulated in the same protocol packet or encapsulated in different protocol packets, so that the home gateway sends the generated multiple second prefixes to the user equipment. And the number of the second authorization prefix sent by the home gateway causes the user equipment to predetermine the number of second authorization prefixes that should be received.
  • FIG. 9 is a structural diagram of a user equipment according to an embodiment of the present invention.
  • the user equipment that is provided by the embodiment of the present invention may perform the processing procedure provided by the embodiment of the IPv6 address allocation method, where the user
  • the device 90 includes a second receiving module 91 and an IPv6 address generating module 92, where the second receiving module 91 is configured to receive a second authorization prefix sent by the home gateway, where the second authorization prefix is at least two received by the home gateway according to the a prefix generated by the first authorization prefix sent by the network access device; wherein the first authorization prefix sent by different network access devices is different from each other, and the second authorization prefix and the first authorization prefix are one A corresponding; the IPv6 address generating module 92 is configured to generate an IPv6 address according to the second authorization prefix.
  • the second receiving module 91 is specifically configured to receive the second authorization prefix sent by the home gateway, and the corresponding prefix identifier, where the prefix identifier is the home gateway according to the second authorization.
  • the unique corresponding identifier generated by the prefix is specifically configured to receive the second authorization prefix sent by the home gateway, and the corresponding prefix identifier, where the prefix identifier is the home gateway according to the second authorization.
  • the unique corresponding identifier generated by the prefix.
  • the prefix identifier received by the second receiving module 91 is stored in a reserved field of a data frame carrying the second authorization prefix, and the data frame is encapsulated in a protocol packet.
  • the second receiving module 91 is further configured to receive the number of the second authorization prefix sent by the home gateway before receiving the second authorization prefix sent by the home gateway.
  • the user gateway sends a plurality of second authorization prefixes to the user equipment, so that the user equipment generates multiple IPv6 addresses according to the multiple second authorization prefixes, so that the user equipment can pass multiple networks at the same time.
  • the link performs network access, which improves network resource utilization.
  • FIG. 10 is a structural diagram of an IPv6 address allocation system according to an embodiment of the present invention.
  • the IPv6 address allocation system provided by the embodiment of the present invention can perform the processing flow provided by the embodiment of the IPv6 address allocation method.
  • the IPv6 address distribution system 100 includes the home gateway 70 in the foregoing embodiment, and the user equipment 90 in the foregoing embodiment.
  • the IPv6 address allocation system provided by the embodiment of the present invention can perform the processing flow provided by the embodiment of the IPv6 address allocation method.
  • the embodiment of the present invention provides a home gateway, which can perform a process flow provided by an embodiment of an IPv6 address allocation method, where the home gateway includes a transceiver and a processor, and the transceiver is configured to receive the at least two network access devices.
  • An authorization prefix, the first authorization prefix sent by the network access device is different from each other;
  • the processor is configured to execute a program instruction stored in a memory, to perform the following operations: according to the received first Authorization prefix generation second An authorization prefix; wherein, the second authorization prefix and the first authorization prefix are in one-to-one correspondence;
  • the transceiver is further configured to send the generated second authorization prefix to the user equipment, where the user equipment is configured according to the The second authorization prefix generates an IPv6 address.
  • the processor is further configured to: generate a unique corresponding prefix identifier according to the second authorization prefix; the transceiver is further configured to send the generated second authorization prefix and the corresponding prefix identifier to the user device.
  • the prefix identifier sent by the transceiver is stored in a reserved field of a data frame carrying the second authorization prefix, and the data frame is encapsulated in a protocol packet.
  • the transceiver is further configured to send the second authorization prefix to the user equipment before sending the generated second authorization prefix to the user equipment.
  • the user gateway sends a plurality of second authorization prefixes to the user equipment, so that the user equipment generates multiple IPv6 addresses according to the multiple second authorization prefixes, so that the user equipment can pass multiple networks at the same time.
  • the link performs network access, which improves network resource utilization.
  • An embodiment of the present invention provides a user equipment, which may perform a process flow provided by an embodiment of an IPv6 address allocation method, where the home gateway includes a transceiver and a processor, where the user equipment includes a receiver and a processor, where the receiver is used by And receiving, by the home gateway, a second authorization prefix, where the second authorization prefix is a prefix generated by the home gateway according to the first authorization prefix sent by the at least two network access devices, where the network access is different.
  • the first authorization prefix sent by the device is different from each other, and the second authorization prefix is in one-to-one correspondence with the first authorization prefix;
  • the processor is configured to execute a program instruction stored in a memory to perform the following operations:
  • the second authorization prefix generates an IPv6 address.
  • the receiver is specifically configured to receive the second authorization prefix sent by the home gateway, and the corresponding prefix identifier, where the prefix identifier is a unique corresponding identifier generated by the home gateway according to the second authorization prefix.
  • the prefix identifier received by the receiver is stored in a reserved field of a data frame carrying the second authorization prefix, and the data frame is encapsulated in a protocol packet.
  • the receiver is further configured to receive the number of the second authorization prefix sent by the home gateway before receiving the second authorization prefix sent by the home gateway.
  • multiple second authorization prefixes are sent to the user equipment by using the home gateway,
  • the user equipment generates multiple IPv6 addresses according to the multiple second authorization prefixes, so that the user equipment can access the network through multiple network links at the same time, thereby improving network resource utilization.
  • An embodiment of the present invention provides an IPv6 address allocation system, which can perform a process flow provided by an embodiment of an IPv6 address allocation method, where the IPv6 address distribution system includes the home gateway in the foregoing embodiment, and the user equipment in the foregoing embodiment.
  • the IPv6 address allocation system provided by the embodiment of the present invention can perform the processing flow provided by the embodiment of the IPv6 address allocation method.
  • the embodiment of the present invention can generate a unique prefix identifier for each of the second authorization prefixes, so that the user equipment can identify the multiple second authorization prefixes received; by selecting in the data frame reservation field.
  • a prefix identifier corresponding to the second authorization prefix, and the plurality of the data frames are encapsulated in the same protocol packet or encapsulated in different protocol packets, so that the home gateway generates the multiple second authorizations.
  • the prefix is sent to the user equipment; the number of the second authorization prefix sent by the home gateway is such that the user equipment predetermines the number of the second authorization prefix that should be received; and the second gateway is sent to the user equipment by the home gateway to provide the second authorization prefix.
  • the user equipment generates multiple IPv6 addresses according to the multiple second authorization prefixes, so that the user equipment can access the network through multiple network links at the same time, thereby improving network resource utilization.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be an indirect coupling or communication connection through some interface, device or unit, and may be in an electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separate, and the components displayed as units may or may not be physical units, i.e., may be located in one place, or may be distributed over multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated in In a unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the above software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the method of various embodiments of the present invention. Part of the steps.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program code. .

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Abstract

本发明实施例提供一种IPv6 地址分配方法及装置。该方法包括:接收至少两个网络接入设备发送的第一授权前缀,不同所述网络接入设备发送的所述第一授权前缀互不相同;根据接收到的所述第一授权前缀生成第二授权前缀;其中,所述第二授权前缀和所述第一授权前缀一一对应;将生成的所述第二授权前缀发送给用户设备,以供所述用户设备根据所述第二授权前缀生成IPv6 地址。本发明实施例通过家庭网关向用户设备发送多个第二授权前缀,以供所述用户设备根据多个第二授权前缀分别生成多个IPv6 地址,使用户设备在同一时刻可通过多个网络链路进行网络访问,提高了网络资源利用率。

Description

IPv6地址分配方法及装置
技术领域
本发明实施例涉及通信技术, 尤其涉及一种 IPv6地址分配方法及装 置。 背景技术
下一代 IP协议 (Internet Protocol Version 6, 简称 IPv6 ) 是互联 网工程任务组(Internet Engineering Task Force, 简称 IETF)设计的下 一代互联网协议, 用于替代当前 IPv4协议来解决地址空间不足的问题。
在 IPv6适用的网络中, 家庭网关可通过多个宽带接入服务器
(Broadband Remote Access Server,简称 BRAS ) 和 /或多个网关 GPRS支 持节点(Gateway GPRS Support Node, 简称 GGSN)将用户设备接入到网络 中, 且任一 BRAS或任一 GGSN与家庭网关相连构成一条链路, 即家庭网关 通过多链路将用户设备接入到网络中。
如图 1所示, 家庭网关同时与 BRAS和 GGSN相连, BRAS和 GGSN预先 通过第六版互联网控制信息协议(Internet Control Message Protocol Version 6,简称 ICMPv6)中的子协议一路由广告 (Router Advitication, 简称 RA) 协议分别向家庭网关发送携带有授权前缀 (Prefix Delegation, 简称 PD )的 ICMPv6报文,所述授权前缀是封装在 ICMPv6报文中的数据帧, 授权前缀的帧格式如图 2所示, 若 Prefix Length字段的值为 56, 则表示 Prefix字段的 56比特地址信息为网络侧服务器授权 BRAS或 GGSN可分配 的 IPv6地址的前 56位, 且携带有 IPv6地址前 56位的授权前缀还可标识 家庭网关与 BRAS或 GGSN之间的链路; 若 Prefix Length字段的值为 64, 则表示 Prefix字段的 64比特地址信息是家庭网关向用户设备发送的 IPv6 地址的前 64位。 在用户设备向家庭网关发送连接请求后, 家庭网关从接 收到 BRAS或 GGSN发送的多个 IPv6地址前 56位的授权前缀中任意选取一 个, 根据预设规则在携带有 IPv6地址前 56位的授权前缀的 Prefix字段 56位的后面添加 8比特构成携带有 IPv6地址前 64位的授权前缀,并将携 带有 IPv6地址前 64位的授权前缀封装在 ICMPv6报文中, 通过 RA协议发 送给用户设备,用户设备依据本设备的 MAC地址以及 EUI-64规则生成 IPv6 地址的后 64位, 并组合携带有 IPv6地址前 64位的授权前缀 Prefix字段 的 64位和 IPv6地址的后 64位构成 128比特的 IPv6地址, 且通过 IPv6 地址包含的携带有 IPv6地址前 56位的授权前缀标识的链路访问网络。
现有技术中, 用户设备可以通过多链路与网络相连, 但是在某一时刻 只能依据一个 IPv6地址通过与所述 IPv6地址对应的携带有 IPv6地址前 56位的授权前缀标识的链路访问网络, 而不能通过其余的链路访问网络, 导致网络资源利用率低。 发明内容 本发明实施例提供一种 IPv6地址分配方法及装置, 以提高网络资源 利用率。
本发明实施例的一个方面是提供一种 IPv6地址分配方法, 包括: 接收至少两个网络接入设备发送的第一授权前缀, 不同所述网络接入 设备发送的所述第一授权前缀互不相同;
根据接收到的所述第一授权前缀生成第二授权前缀; 其中, 所述第二 授权前缀和所述第一授权前缀一一对应;
将生成的所述第二授权前缀发送给用户设备, 以供所述用户设备根据 所述第二授权前缀生成 IPv6地址。
本发明实施例的另一个方面是提供一种 IPv6地址分配方法, 包括: 接收家庭网关发送的第二授权前缀, 所述第二授权前缀为所述家庭网 关根据接收到的至少两个网络接入设备发送的第一授权前缀生成的前缀; 其中, 不同所述网络接入设备发送的所述第一授权前缀互不相同, 所述第 二授权前缀和所述第一授权前缀一一对应;
根据所述第二授权前缀生成 IPv6地址。
本发明实施例的另一个方面是提供一种家庭网关, 包括:
第一接收模块, 用于接收至少两个网络接入设备发送的第一授权前 缀, 不同所述网络接入设备发送的所述第一授权前缀互不相同;
第二授权前缀生成模块, 用于根据接收到的所述第一授权前缀生成第 二授权前缀; 其中, 所述第二授权前缀和所述第一授权前缀一一对应; 发送模块, 用于将生成的所述第二授权前缀发送给用户设备, 以供所 述用户设备根据所述第二授权前缀生成 IPv6地址。
本发明实施例的另一个方面是提供一种用户设备, 包括:
第二接收模块, 用于接收家庭网关发送的第二授权前缀, 所述第二授 权前缀为所述家庭网关根据接收到的至少两个网络接入设备发送的第一 授权前缀生成的前缀; 其中, 不同所述网络接入设备发送的所述第一授权 前缀互不相同, 所述第二授权前缀和所述第一授权前缀一一对应;
IPv6地址生成模块, 用于根据所述第二授权前缀生成 IPv6地址。 本发明实施例的另一个方面是提供一种家庭网关, 包括收发器和处理 器:
所述收发器用于接收至少两个网络接入设备发送的第一授权前缀, 不 同所述网络接入设备发送的所述第一授权前缀互不相同;
所述处理器用于执行存储在存储器中的程序指令, 以进行以下操作: 根据接收到的所述第一授权前缀生成第二授权前缀; 其中, 所述第二授权 前缀和所述第一授权前缀一一对应;
所述收发器还用于将生成的所述第二授权前缀发送给用户设备, 以供 所述用户设备根据所述第二授权前缀生成 IPv6地址。
本发明实施例的另一个方面是提供一种用户设备, 包括接收器和处理 器:
所述接收器用于接收家庭网关发送的第二授权前缀, 所述第二授权前 缀为所述家庭网关根据接收到的至少两个网络接入设备发送的第一授权 前缀生成的前缀; 其中, 不同所述网络接入设备发送的所述第一授权前缀 互不相同, 所述第二授权前缀和所述第一授权前缀一一对应;
所述处理器用于执行存储在存储器中的程序指令, 以进行以下操作: 根据所述第二授权前缀生成 IPv6地址。
本发明实施例的另一个方面是提供一种 IPv6地址分配系统, 包括所 述的家庭网关和所述的用户设备。
本发明提供的 IPv6地址前缀分配方法及装置, 通过家庭网关向用户 设备发送多个第二授权前缀, 以供所述用户设备根据多个第二授权前缀分 别生成多个 IPv6地址, 使用户设备在同一时刻可通过多个网络链路进行 网络访问, 提高了网络资源利用率。 附图说明
图 1为现有技术 IPv6地址分配方法的信令图;
图 2为现有技术授权前缀的帧格式图;
图 3为本发明实施例提供的 IPv6地址分配方法流程图;
图 4为本发明另一实施例提供的 IPv6地址分配方法所适用的授权前 缀的帧格式图;
图 5为本发明另一实施例提供的 IPv6地址分配方法的信令图; 图 6为本发明另一实施例提供的 IPv6地址分配方法流程图; 图 7为本发明实施例提供的家庭网关的结构图;
图 8为本发明另一实施例提供的家庭网关的结构图;
图 9为本发明实施例提供的用户设备的结构图;
图 10为本发明实施例提供的 IPv6地址分配系统的结构图。 具体实施方式
图 3为本发明实施例提供的 IPv6地址分配方法流程图。 本发明实施 例适用于用户设备访问网络时依据家庭网关向用户设备分配的 IPv6地址 前缀, 并组合 IPv6地址前缀和用户设备本地生成的 IPv6地址后 64位构 成用户设备的 IPv6地址, 依据 IPv6地址访问网络, 具体的 IPv6地址分 配方法如下:
步骤 301、 接收至少两个网络接入设备发送的第一授权前缀, 不同所 述网络接入设备发送的所述第一授权前缀互不相同;
家庭网关与多个网络接入设备相连, 且多个网络接入设备向家庭网关 分别发送第一授权前缀, 多个网络接入设备分别发送的各第一授权前缀互 不相同, 所述第一授权前缀中包括网络侧服务器授权网络接入设备可分配 的 IPv6地址前缀。
步骤 302、根据接收到的所述第一授权前缀生成第二授权前缀; 其中, 所述第二授权前缀和所述第一授权前缀一一对应;
家庭网关在第一授权前缀的后面添加 8比特数据, 将 56位的第一授 权前缀扩展成 64位的第二授权前缀, 所述 8比特数据是家庭网关随机生 成的, 具体的生成过程可采用现有技术中任意一种方法。
步骤 303、 将生成的所述第二授权前缀发送给用户设备, 以供所述用 户设备根据所述第二授权前缀生成 IPv6地址。
家庭网关将生成的多个所述第二授权前缀同时或者分批发送给用户 设备, 用户设备依据本设备的 MAC地址以及 EUI-64规则生成 IPv6地址的 后缀, 并分别将所述第二授权前缀与 IPv6地址的后缀组合成多个 128位 的 IPv6地址, 用户设备依据多个 128位的 IPv6地址通过多个网络链路进 行网络访问。
本发明实施例, 通过家庭网关向用户设备发送多个第二授权前缀, 以 供所述用户设备根据多个第二授权前缀分别生成多个 IPv6地址, 使用户 设备在同一时刻可通过多个网络链路进行网络访问, 提高了网络资源利用 率。
在上述实施例的基础上, 所述将生成的所述第二授权前缀发送给用个 户设备包括: 依据所述第二授权前缀生成唯一对应的前缀标识; 将生成的 所述第二授权前缀, 以及对应的前缀标识发送给用户设备。
家庭网关根据所述多个第一授权前缀, 分别生成多个对应的第二授权 前缀后, 为每个所述第二授权前缀生成唯一对应的前缀标识, 并将多个所 述第二授权前缀, 以及各自对应的前缀标识发送给用户设备。
本发明实施例通过为每个所述第二授权前缀生成唯一对应的前缀标 识, 便于用户设备从携带有多个第二授权前缀的同一个协议报文中识别出 各第二授权前缀。
图 4为本发明另一实施例提供的 IPv6地址分配方法所适用的授权前 缀的帧格式图。 在上述实施例的基础上, 所述前缀标识保存在携带所述第 二授权前缀的数据帧的预留字段中, 所述数据帧封装在协议报文中。
如图 4所示为本发明实施例第二授权前缀对应的数据帧的帧格式, " Type "字段标识数据帧的种类, 本发明实施例中用于标识此数据帧为授 权前缀; " Length" 字段标识数据帧的总长度; "Prefix Length" 字段 标识数据帧中 "Prefix "字段的长度; " L"字段与 "A"字段为服务质量 选项字段; "Reservedl " 为预留字段 1 ; "Val id Lifetime " 字段标识 授权前缀实际的生存期, 即网络侧服务器授权的 IPv6地址前缀是有生存 期的, 超过实际的生存期时授权前缀将失效; "Preferred Lifetime " 字 段标识的时间小于等于 "Val id Lifetime " 字段标识的时间, 表示在 "Preferred Lifetime " 字段标识的时间之内, 应向网络侧服务器请求获 取新的授权前缀; " x | y "标识第二授权前缀对应的前缀标识, 若前缀标 识选用 n位, 则最多可标识 2"个不同的第二授权前缀; " Re serVed2 " 字 段标识预留字段 2; "Prefix "字段标识 IPv6地址前缀。
各所述第二授权前缀分别通过如图 4所示的数据帧携带, 每个数据帧 预留字段 2中的标识字段标识不同的第二授权前缀, 且多个所述数据帧同 时封装在同一个协议报文中, 若多个所述数据帧的总长度超出一个协议报 文的最大长度时, 将超出最大长度的所述数据帧封装在另一个相同的协议 报文中;另外本发明实施例中的前缀标识也可选用预留字段 1中的预留位。
本发明实施例通过在数据帧预留字段中选择第二授权前缀对应的前 缀标识, 并通过多个所述数据帧同时封装在同一个协议报文中或分别封装 在不同的协议报文中, 使家庭网关将生成的多个所述第二授权前缀发送给 用户设备。
图 5为本发明另一实施例提供的 IPv6地址分配方法的信令图。 在上 述实施例的基础上, 所述将生成的所述第二授权前缀发送给用户设备之 前, 还包括: 向所述用户设备发送所述第二授权前缀的数量。 本发明实施 例提供的 IPv6地址分配方法具体步骤如下:
步骤 501、 BRAS向家庭网关发送第一授权前缀;
步骤 502、 GGSN向家庭网关发送第一授权前缀;
家庭网关同时与 BRAS和 GGSN相连, BRAS和 GGSN分别向家庭网关发 送第一授权前缀, 且各第一授权前缀不同, 家庭网关根据两个第一授权前 缀, 分别生成两个对应的第二授权前缀。
步骤 503、 用户设备向家庭网关发送连接请求;
用户设备通过家庭网关访问网络, 向家庭网关发送连接请求以进行网 络连接。
步骤 504、 家庭网关向用户设备发送连接请求响应;
家庭网关向用户设备发送连接请求响应, 连接请求响应中包括待向所 述用户设备发送的 ICMPv6报文中携带的所述第二授权前缀的数量。
步骤 505、 家庭网关向用户设备发送两个第二授权前缀;
家庭网关通过 RA协议向用户设备发送一个 ICMPv6报文,所述 ICMPv6 报文中封装有两个第二授权前缀。
步骤 506、 用户设备生成两个 IPv6地址;
用户设备根据两个所述第二授权前缀分别生成两个 IPv6地址。
本发明实施例, 通过家庭网关向用户设备发送多个第二授权前缀, 以 供所述用户设备根据多个第二授权前缀分别生成多个 IPv6地址, 使用户 设备在同一时刻可通过多个网络链路进行网络访问, 提高了网络资源利用 率。
图 6为本发明另一实施例提供的 IPv6地址分配方法流程图。 本发明 实施例提供的 IPv6地址分配方法步骤如下:
步骤 601、 接收家庭网关发送的第二授权前缀, 所述第二授权前缀为 所述家庭网关根据接收到的至少两个网络接入设备发送的第一授权前缀 生成的前缀; 其中, 不同所述网络接入设备发送的所述第一授权前缀互不 相同, 所述第二授权前缀和所述第一授权前缀一一对应;
用户设备接收家庭网关发送的多个第二授权前缀, 家庭网关与多个网 络接入设备相连, 且多个网络接入设备向家庭网关分别发送第一授权前 缀, 多个网络接入设备分别发送的各第一授权前缀互不相同, 家庭网关根 据所述多个第一授权前缀, 通过扩展第一授权前缀包括的 IPv6地址前缀, 分别生成多个对应的第二授权前缀, 将生成的多个所述第二授权前缀发送 给用户设备。
步骤 602、 根据所述第二授权前缀生成 IPv6地址。
用户设备预先或在接收到多个所述第二授权后, 依据本设备的 MAC地 址以及 64比特扩展唯一标识符 ( 64-bit Extended Unique Identifier, 简称 EUI-64) 规则生成 IPv6地址的后缀, 并分别将所述第二授权前缀与 IPv6地址的后缀组合成多个 128位的 IPv6地址, 用户设备依据多个 128 位的 IPv6地址通过多个网络链路进行网络访问。
本发明实施例, 通过家庭网关向用户设备发送多个第二授权前缀, 以 供所述用户设备根据多个第二授权前缀分别生成多个 IPv6地址, 使用户 设备在同一时刻可通过多个网络链路进行网络访问, 提高了网络资源利用 率。
在上述实施例的基础上, 所述接收家庭网关发送的第二授权前缀包 括: 接收家庭网关发送的所述第二授权前缀, 以及对应的前缀标识, 所述 前缀标识为所述家庭网关依据所述第二授权前缀生成的唯一对应的标识。
家庭网关根据所述多个第一授权前缀, 分别生成多个对应的第二授权 前缀后, 为每个所述第二授权前缀生成唯一对应的前缀标识, 并将多个所 述第二授权前缀, 以及各自对应的前缀标识发送给用户设备。
所述前缀标识保存在携带所述第二授权前缀的数据帧的预留字段中, 所述数据帧封装在协议报文中。
各所述第二授权前缀分别通过如图 4所示的数据帧携带, 每个数据帧 预留字段 2中的标识字段标识不同的第二授权前缀, 且多个所述数据帧同 时封装在同一个协议报文中, 若多个所述数据帧的总长度超出一个协议报 文的最大长度时, 将超出最大长度的所述数据帧封装另一个相同的协议报 文中。 另外本发明实施例中的前缀标识也可选用预留字段 1中的预留位。
所述接收家庭网关发送的所述第二授权前缀之前, 还包括: 接收家庭 网关发送的所述第二授权前缀的数量。
用户设备在接收多个所述第二授权前缀之前, 接收家庭网关发送的所 述第二授权前缀的数量, 以预先确定家庭网关后续发送的第二授权前缀的 数量。
本发明实施例通过为每个所述第二授权前缀生成唯一对应的前缀标 识, 可使用户设备识别接收到的多个第二授权前缀; 通过在数据帧预留字 段中选择第二授权前缀对应的前缀标识, 并通过多个所述数据帧同时封装 在同一个协议报文中或分别封装在不同的协议报文中, 使家庭网关将生成 的多个所述第二授权前缀发送给用户设备; 通过家庭网关发送的所述第二 授权前缀的数量使用户设备预先确定应接收第二授权前缀的数量。
图 7为本发明实施例提供的家庭网关的结构图。本发明实施例提供的 家庭网关可以执行 IPv6地址分配方法实施例提供的处理流程, 所述家庭 网关 70包括第一接收模块 71、第二授权前缀生成模块 72和发送模块 73, 其中, 第一接收模块 71用于接收至少两个网络接入设备发送的第一授权 前缀, 不同所述网络接入设备发送的所述第一授权前缀互不相同; 第二授 权前缀生成模块 72用于根据接收到的所述第一授权前缀生成第二授权前 缀; 其中, 所述第二授权前缀和所述第一授权前缀一一对应; 发送模块 73 用于将生成的所述第二授权前缀发送给用户设备, 以供所述用户设备根据 所述第二授权前缀生成 IPv6地址。
本发明实施例, 通过家庭网关向用户设备发送多个第二授权前缀, 以 供所述用户设备根据多个第二授权前缀分别生成多个 IPv6地址, 使用户 设备在同一时刻可通过多个网络链路进行网络访问, 提高了网络资源利用 率。
图 8为本发明另一实施例提供的家庭网关的结构图。本发明实施例提 供的家庭网关可以执行 IPv6地址分配方法实施例提供的处理流程, 在上 述实施例的基础上, 家庭网关 70还包括前缀标识生成模块 81用于依据所 述第二授权前缀生成唯一对应的前缀标识; 所述发送模块 73具体用于将 生成的所述第二授权前缀, 以及对应的前缀标识发送给用户设备。
在本发明实施例中, 所述发送模块 73发送的所述前缀标识保存在携 带所述第二授权前缀的数据帧的预留字段中, 所述数据帧封装在协议报文 中。
所述发送模块 73还用于在将所述第二授权前缀生成的所述第二授权 前缀发送给用户设备之前, 向所述用户设备发送所述第二授权前缀的数 量。
本发明实施例通过为每个所述第二授权前缀生成唯一对应的前缀标 识, 可使用户设备识别接收到的多个第二授权前缀; 通过在数据帧预留字 段中选择第二授权前缀对应的前缀标识, 并通过多个所述数据帧同时封装 在同一个协议报文中或分别封装在不同的协议报文中, 使家庭网关将生成 的多个所述第二授权前缀发送给用户设备; 并通过家庭网关发送的所述第 二授权前缀的数量使用户设备预先确定应接收第二授权前缀的数量。
本发明实施例提供的家庭网关的具体功能可以参照上述各方法实施 例, 此处不再赘述。
图 9为本发明实施例提供的用户设备的结构图。本发明实施例提供的 用户设备可以执行 IPv6地址分配方法实施例提供的处理流程, 所述用户 设备 90包括第二接收模块 91和 IPv6地址生成模块 92, 其中第二接收模 块 91用于接收家庭网关发送的第二授权前缀, 所述第二授权前缀为所述 家庭网关根据接收到的至少两个网络接入设备发送的第一授权前缀生成 的前缀;其中,不同所述网络接入设备发送的所述第一授权前缀互不相同, 所述第二授权前缀和所述第一授权前缀一一对应; IPv6地址生成模块 92 用于根据所述第二授权前缀生成 IPv6地址。
在本发明实施例中, 所述第二接收模块 91具体用于接收家庭网关发 送的所述第二授权前缀, 以及对应的前缀标识, 所述前缀标识为所述家庭 网关依据所述第二授权前缀生成的唯一对应的标识。
所述第二接收模块 91接收到的所述前缀标识保存在携带所述第二授 权前缀的数据帧的预留字段中, 所述数据帧封装在协议报文中。
所述第二接收模块 91还用于在接收家庭网关发送的所述第二授权前 缀之前, 接收家庭网关发送的所述第二授权前缀的数量。
本发明实施例, 通过家庭网关向用户设备发送多个第二授权前缀, 以 供所述用户设备根据多个第二授权前缀分别生成多个 IPv6地址, 使用户 设备在同一时刻可通过多个网络链路进行网络访问, 提高了网络资源利用 率。
本发明实施例提供的用户设备的具体功能可以参照上述各方法实施 例, 此处不再赘述。
图 10为本发明实施例提供的 IPv6地址分配系统的结构图。 本发明实 施例提供的 IPv6地址分配系统可以执行 IPv6地址分配方法实施例提供的 处理流程,所述 IPv6地址分配系统 100包括上述实施例中的家庭网关 70, 以及上述实施例中的用户设备 90。
本发明实施例提供的 IPv6地址分配系统可以执行 IPv6地址分配方法 实施例提供的处理流程。
本发明实施例提供一种家庭网关, 可以执行 IPv6地址分配方法实施 例提供的处理流程, 所述家庭网关包括收发器和处理器, 所述收发器用于 接收至少两个网络接入设备发送的第一授权前缀, 不同所述网络接入设备 发送的所述第一授权前缀互不相同; 所述处理器用于执行存储在存储器中 的程序指令, 以进行以下操作: 根据接收到的所述第一授权前缀生成第二 授权前缀; 其中, 所述第二授权前缀和所述第一授权前缀一一对应; 所述 收发器还用于将生成的所述第二授权前缀发送给用户设备, 以供所述用户 设备根据所述第二授权前缀生成 IPv6地址。
所述处理器还用于执行以下步骤, 依据所述第二授权前缀生成唯一对 应的前缀标识; 所述收发器还用于将生成的所述第二授权前缀, 以及对应 的前缀标识发送给用户设备。
所述收发器发送的所述前缀标识保存在携带所述第二授权前缀的数 据帧的预留字段中, 所述数据帧封装在协议报文中。
所述收发器还用于在将生成的所述第二授权前缀发送给用户设备之 前, 向所述用户设备发送所述第二授权前缀的数量。
本发明实施例, 通过家庭网关向用户设备发送多个第二授权前缀, 以 供所述用户设备根据多个第二授权前缀分别生成多个 IPv6地址, 使用户 设备在同一时刻可通过多个网络链路进行网络访问, 提高了网络资源利用 率。
本发明实施例提供一种用户设备, 可以执行 IPv6地址分配方法实施 例提供的处理流程, 所述家庭网关包括收发器和处理器, 所述用户设备包 括接收器和处理器, 所述接收器用于接收家庭网关发送的第二授权前缀, 所述第二授权前缀为所述家庭网关根据接收到的至少两个网络接入设备 发送的第一授权前缀生成的前缀; 其中, 不同所述网络接入设备发送的所 述第一授权前缀互不相同, 所述第二授权前缀和所述第一授权前缀一一对 应; 所述处理器用于执行存储在存储器中的程序指令, 以进行以下操作: 根据所述第二授权前缀生成 IPv6地址。
所述接收器具体用于接收家庭网关发送的所述第二授权前缀, 以及对 应的前缀标识, 所述前缀标识为所述家庭网关依据所述第二授权前缀生成 的唯一对应的标识。
所述接收器接收到的所述前缀标识保存在携带所述第二授权前缀的 数据帧的预留字段中, 所述数据帧封装在协议报文中。
所述接收器还用于在接收家庭网关发送的所述第二授权前缀之前, 接 收家庭网关发送的所述第二授权前缀的数量。
本发明实施例, 通过家庭网关向用户设备发送多个第二授权前缀, 以 供所述用户设备根据多个第二授权前缀分别生成多个 IPv6地址, 使用户 设备在同一时刻可通过多个网络链路进行网络访问, 提高了网络资源利用 率。
本发明实施例提供一种 IPv6地址分配系统, 可以执行 IPv6地址分配 方法实施例提供的处理流程, 所述 IPv6地址分配系统包括上述实施例中 的家庭网关, 以及上述实施例中的用户设备。
本发明实施例提供的 IPv6地址分配系统可以执行 IPv6地址分配方法 实施例提供的处理流程。
综上所述, 本发明实施例通过为每个所述第二授权前缀生成唯一对应 的前缀标识, 可使用户设备识别接收到的多个第二授权前缀; 通过在数据 帧预留字段中选择第二授权前缀对应的前缀标识, 并通过多个所述数据帧 同时封装在同一个协议报文中或分别封装在不同的协议报文中, 使家庭网 关将生成的多个所述第二授权前缀发送给用户设备; 通过家庭网关发送的 所述第二授权前缀的数量使用户设备预先确定应接收第二授权前缀的数 量; 通过家庭网关向用户设备发送多个第二授权前缀, 以供所述用户设备 根据多个第二授权前缀分别生成多个 IPv6地址, 使用户设备在同一时刻 可通过多个网络链路进行网络访问, 提高了网络资源利用率。
在本发明所提供的几个实施例中,应该理解到,所揭露的装置和方法, 可以通过其它的方式实现。 例如, 以上所描述的装置实施例仅仅是示意性 的, 例如, 所述单元的划分, 仅仅为一种逻辑功能划分, 实际实现时可以 有另外的划分方式, 例如多个单元或组件可以结合或者可以集成到另一个 系统, 或一些特征可以忽略, 或不执行。 另一点, 所显示或讨论的相互之 间的耦合或直接耦合或通信连接可以是通过一些接口, 装置或单元的间接 耦合或通信连接, 可以是电性, 机械或其它的形式。
所述作为分离部件说明的单元可以是或者也可以不是物理上分开的, 作为单元显示的部件可以是或者也可以不是物理单元, 即可以位于一个地 方, 或者也可以分布到多个网络单元上。 可以根据实际的需要选择其中的 部分或者全部单元来实现本实施例方案的目的。
另外, 在本发明各个实施例中的各功能单元可以集成在一个处理单元 中, 也可以是各个单元单独物理存在, 也可以两个或两个以上单元集成在 一个单元中。 上述集成的单元既可以采用硬件的形式实现, 也可以采用硬 件加软件功能单元的形式实现。
上述以软件功能单元的形式实现的集成的单元, 可以存储在一个计算 机可读取存储介质中。 上述软件功能单元存储在一个存储介质中, 包括若 干指令用以使得一台计算机设备 (可以是个人计算机, 服务器, 或者网络 设备等) 或处理器 (processor ) 执行本发明各个实施例所述方法的部分 步骤。 而前述的存储介质包括: U盘、 移动硬盘、 只读存储器 (Read-Only Memory , ROM ) 、 随机存取存储器 ( Random Access Memory, RAM) 、 磁碟 或者光盘等各种可以存储程序代码的介质。
本领域技术人员可以清楚地了解到, 为描述的方便和简洁, 仅以上述 各功能模块的划分进行举例说明, 实际应用中, 可以根据需要而将上述功 能分配由不同的功能模块完成, 即将装置的内部结构划分成不同的功能模 块, 以完成以上描述的全部或者部分功能。 上述描述的装置的具体工作过 程, 可以参考前述方法实施例中的对应过程, 在此不再赘述。
最后应说明的是: 以上各实施例仅用以说明本发明的技术方案, 而非 对其限制; 尽管参照前述各实施例对本发明进行了详细的说明, 本领域的 普通技术人员应当理解: 其依然可以对前述各实施例所记载的技术方案进 行修改, 或者对其中部分或者全部技术特征进行等同替换; 而这些修改或 者替换, 并不使相应技术方案的本质脱离本发明各实施例技术方案的范 围。

Claims

权 利 要 求 书
1、 一种 IPv6地址分配方法, 其特征在于, 包括:
接收至少两个网络接入设备发送的第一授权前缀, 不同所述网络接入 设备发送的所述第一授权前缀互不相同;
根据接收到的所述第一授权前缀生成第二授权前缀; 其中, 所述第二 授权前缀和所述第一授权前缀一一对应;
将生成的所述第二授权前缀发送给用户设备, 以供所述用户设备根据 所述第二授权前缀生成 IPv6地址。
2、 根据权利要求 1所述的方法, 其特征在于, 所述将生成的所述第 二授权前缀发送给用户设备包括:
依据所述第二授权前缀生成唯一对应的前缀标识;
将生成的所述第二授权前缀, 以及对应的前缀标识发送给用户设备。
3、 根据权利要求 2所述的方法, 其特征在于, 所述方法还包括: 所述前缀标识保存在携带所述第二授权前缀的数据帧的预留字段中, 所述数据帧封装在协议报文中。
4、 根据权利要求 1或 2或 3所述的方法, 其特征在于, 所述将生成 的所述第二授权前缀发送给用户设备之前, 还包括:
向所述用户设备发送所述第二授权前缀的数量。
5、 一种 IPv6地址分配方法, 其特征在于, 包括:
接收家庭网关发送的第二授权前缀, 所述第二授权前缀为所述家庭网 关根据接收到的至少两个网络接入设备发送的第一授权前缀生成的前缀; 其中, 不同所述网络接入设备发送的所述第一授权前缀互不相同, 所述第 二授权前缀和所述第一授权前缀一一对应;
根据所述第二授权前缀生成 IPv6地址。
6、 根据权利要求 5所述的方法, 其特征在于, 所述接收家庭网关发 送的第二授权前缀包括:
接收家庭网关发送的所述第二授权前缀, 以及对应的前缀标识, 所述 前缀标识为所述家庭网关依据所述第二授权前缀生成的唯一对应的标识。
7、 根据权利要求 6所述的方法, 其特征在于, 所述方法还包括: 所述前缀标识保存在携带所述第二授权前缀的数据帧的预留字段中, 所述数据帧封装在协议报文中。
8、 根据权利要求 5或 6或 7所述的方法, 其特征在于, 所述接收家 庭网关发送的所述第二授权前缀之前, 还包括:
接收家庭网关发送的所述第二授权前缀的数量。
9、 一种家庭网关, 其特征在于, 包括:
第一接收模块, 用于接收至少两个网络接入设备发送的第一授权前 缀, 不同所述网络接入设备发送的所述第一授权前缀互不相同;
第二授权前缀生成模块, 用于根据接收到的所述第一授权前缀生成第 二授权前缀; 其中, 所述第二授权前缀和所述第一授权前缀一一对应; 发送模块, 用于将生成的所述第二授权前缀发送给用户设备, 以供所 述用户设备根据所述第二授权前缀生成 IPv6地址。
10、 根据权利要求 9所述的家庭网关, 其特征在于, 还包括: 前缀标识生成模块, 用于依据所述第二授权前缀生成唯一对应的前缀 标识;
所述发送模块具体用于将生成的所述第二授权前缀, 以及对应的前缀 标识发送给用户设备。
11、 根据权利要求 10所述的家庭网关, 其特征在于, 所述发送模块 发送的所述前缀标识保存在携带所述第二授权前缀的数据帧的预留字段 中, 所述数据帧封装在协议报文中。
12、 根据权利要求 9或 10或 11所述的家庭网关, 其特征在于, 所述 发送模块还用于在将所述第二授权前缀生成的所述第二授权前缀发送给 用户设备之前, 向所述用户设备发送所述第二授权前缀的数量。
13、 一种用户设备, 其特征在于, 包括:
第二接收模块, 用于接收家庭网关发送的第二授权前缀, 所述第二授 权前缀为所述家庭网关根据接收到的至少两个网络接入设备发送的第一 授权前缀生成的前缀; 其中, 不同所述网络接入设备发送的所述第一授权 前缀互不相同, 所述第二授权前缀和所述第一授权前缀一一对应;
IPv6地址生成模块, 用于根据所述第二授权前缀生成 IPv6地址。
14、 根据权利要求 13所述的用户设备, 其特征在于, 所述第二接收 模块具体用于接收家庭网关发送的所述第二授权前缀, 以及对应的前缀标 识, 所述前缀标识为所述家庭网关依据所述第二授权前缀生成的唯一对应 的标识。
15、 根据权利要求 14所述的用户设备, 其特征在于, 所述第二接收 模块接收到的所述前缀标识保存在携带所述第二授权前缀的数据帧的预 留字段中, 所述数据帧封装在协议报文中。
16、 根据权利要求 13或 14或 15所述的用户设备, 其特征在于, 所 述第二接收模块还用于在接收家庭网关发送的所述第二授权前缀之前, 接 收家庭网关发送的所述第二授权前缀的数量。
17、 一种家庭网关, 其特征在于, 包括收发器和处理器, 其中: 所述收发器用于接收至少两个网络接入设备发送的第一授权前缀, 不 同所述网络接入设备发送的所述第一授权前缀互不相同;
所述处理器用于执行存储在存储器中的程序指令, 以进行以下操作: 根据接收到的所述第一授权前缀生成第二授权前缀; 其中, 所述第二授权 前缀和所述第一授权前缀一一对应;
所述收发器还用于将生成的所述第二授权前缀发送给用户设备, 以供 所述用户设备根据所述第二授权前缀生成 IPv6地址。
18、 根据权利要求 17所述的家庭网关, 其特征在于, 所述处理器还 用于执行以下步骤, 依据所述第二授权前缀生成唯一对应的前缀标识; 所述收发器还用于将生成的所述第二授权前缀, 以及对应的前缀标识 发送给用户设备。
19、 根据权利要求 18所述的家庭网关, 其特征在于, 所述收发器发 送的所述前缀标识保存在携带所述第二授权前缀的数据帧的预留字段中, 所述数据帧封装在协议报文中。
20、 根据权利要求 17或 18或 19所述的家庭网关, 其特征在于, 所 述收发器还用于在将生成的所述第二授权前缀发送给用户设备之前, 向所 述用户设备发送所述第二授权前缀的数量。
21、 一种用户设备, 其特征在于, 包括接收器和处理器, 其中: 所述接收器用于接收家庭网关发送的第二授权前缀, 所述第二授权前 缀为所述家庭网关根据接收到的至少两个网络接入设备发送的第一授权 前缀生成的前缀; 其中, 不同所述网络接入设备发送的所述第一授权前缀 互不相同, 所述第二授权前缀和所述第一授权前缀一一对应; 所述处理器用于执行存储在存储器中的程序指令, 以进行以下操作: 根据所述第二授权前缀生成 IPv6地址。
22、 根据权利要求 21所述的用户设备, 其特征在于, 所述接收器具 体用于接收家庭网关发送的所述第二授权前缀, 以及对应的前缀标识, 所 述前缀标识为所述家庭网关依据所述第二授权前缀生成的唯一对应的标 识。
23、 根据权利要求 22所述的用户设备, 其特征在于, 所述接收器接 收到的所述前缀标识保存在携带所述第二授权前缀的数据帧的预留字段 中, 所述数据帧封装在协议报文中。
24、 根据权利要求 21或 22或 23所述的用户设备, 其特征在于, 所 述接收器还用于在接收家庭网关发送的所述第二授权前缀之前, 接收家庭 网关发送的所述第二授权前缀的数量。
25、 一种 IPv6地址分配系统, 其特征在于, 包括如权利要求 9-12、 17-20任一所述的家庭网关, 以及如权利要求 13-16、 21-24任一所述的用 户设备。
PCT/CN2014/072840 2014-03-04 2014-03-04 IPv6地址分配方法及装置 WO2015131327A1 (zh)

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