WO2013178164A1

WO2013178164A1 - Ipv6 domain name server (dns) address allocation and obtaining method and device

Info

Publication number: WO2013178164A1
Application number: PCT/CN2013/079980
Authority: WO
Inventors: 郑巍; 胡乐申; 温海龙
Original assignee: 中兴通讯股份有限公司
Priority date: 2012-12-07
Filing date: 2013-07-24
Publication date: 2013-12-05
Also published as: CN102984294A

Abstract

Disclosed are an IPv6 domain name server (DNS) address allocation and obtaining method and device. The method comprises: using a wireless data card to receive request information from a host, the request information being used for requesting an IPv6 DNS address; and the wireless data card allocating the IPv6 DNS address to the host via an application interface between the host and the wireless data card. The present invention solves the problem existing in the related art that the host side of an IPv6 device cannot obtain an IPv6 DNS address or needs to make a significant change to the serving system architecture when obtaining the IPv6 DNS address, such that it can now simply and easily allocate the DNS address to the IPv6 device automatically without the system architecture being changed. Thus, not only is the cost lower, but also the IPv6 networking and data transmission functions of a mobile wireless data communication device are perfected to a certain extent.

Description

The present invention relates to the field of communications, and in particular to an IPv6 domain name server DNS address allocation and acquisition method and apparatus. Background technique

The IPv6 protocol has a large address space, its address structure facilitates address aggregation, supports automatic address configuration, and supports host mobility. Its security and quality of service are superior to Internet Protocol version 4 (IPv4). . Whether it is the 3rd Generation Partnership Project (3GPP) Universal Mobile Telecommunications System (UMTS), or 3GPP2 Code Division Multiple Access (Code Division Multiple Access) For the CDMA) 2000 system, it has been determined that the Internet Protocol version 6 (IPv6) is the development direction of network bearers and service applications. Especially in the IP Multimedia Subsystem (IMS) stage of The Third Generation Mobile Communications (3G), the network system will be fully based or compatible with IPv6. IPv6 has become the shared basic protocol for the Internet and mobile communication networks.

An IPv6 address consists of a prefix and an interface identifier. The upper 64 bits are prefix addresses and the lower 64 bits are interface identifiers. In the 3GPP specifications, the interface identifier and the prefix address are all allocated by the network in two phases. The first phase of the data card is from the Gateway General-Packet-Radio-Service Support Node (Gateway General-Packet-Radio-Service Support Node, referred to as GGSN) Obtains its interface identifier. This phase is completed by the Packet Data Protocol (PDP) context activation process. In the second signaling phase, the data card obtains the prefix address required for the global IPv6 address from the GGSN by using a message such as a Router Solicitation (RS) and a Router Advertisement (RA). There are two types of IPv6 addresses of the host. One is the link-local address, which is a link-local unicast address generated by the link-local address prefix 1111111010 and the interface identifier. It is used for LAN-wide host communication with link-local. The IPv6 packet of the address is not forwarded by the router to the external network. The other is a global unicast address where the mobile terminal can only communicate with other hosts in the external data network using global IPv6 addresses. There are two automatic configuration methods for global unicast addresses. One is Stateless Address Auto-Configuration (SLAAC), and the other is Dynamic Host Configure Protocol (Real Host Host Protocol). Version 6, referred to as DHCPv6) configuration mode. After the IPv6 address assignment is completed, the data card needs to obtain an IPv6 DNS address and assign it to the host. 3GPP defines the Protocol Configuration Options Information Element (PCO-IE) method. With this method, the IPv6 Domain Name Server (DNS) address can be activated from the PDP context (PDP context). Activation) Obtained in the information. This method has no problem in obtaining IPv6 DNS for mobile IPv6 dialing, but there is a problem with data cards that use stateless autoconfiguration. Because there is no DNS configuration parameter option in the IPv6 Control Protocol (IPv6CP) for the point-to-point protocol (PPP) link mode, the data card obtains the IPv6 DNS through the PDP PCO-IE. After that, the DNS cannot be assigned to the user terminal through the IPv6CP negotiation process. For Ethernet dialing, the data card can only generate IPv6 addresses through RS and RA messages, and cannot automatically assign DNS addresses to hosts. When the IPv6 DNS is assigned to the host by using the RA Option protocol in the related art, although the route advertisement option mechanism only extends the Neighbor Discovery (ND) protocol automatic configuration mechanism extension parameter, Need to add new messages, can save transmission delay and wireless bandwidth resources, however, the ND protocol is mostly implemented in the operating system, the synchronization between the ND buffers is in the kernel space, and the DNS configuration file is in the user space, so the current The ND framework needs to be changed. Therefore, in the related art, the host side of the IPv6 device cannot obtain an IPv6 DNS address, or obtaining an IPv6 DNS address requires a major change to the service system architecture. SUMMARY OF THE INVENTION The present invention provides an IPv6 domain name server DNS address allocation and acquisition method and device, so as to at least solve the problem that the host side of the IPv6 device in the related art cannot obtain an IPv6 DNS address, or obtain an IPv6 DNS address needs to compare the service system architecture. Big change problem. According to an aspect of the present invention, a method for allocating a DNS address of an IPv6 domain name server is provided, including: receiving, by a wireless data card, request information from a host, where the request information is used to request acquisition of the IPv6 DNS address; The data card assigns the IPv6 DNS address to the host through an application interface between the host and the wireless data card. Preferably, after the wireless data card receives the request information from the host, the method further includes: the wireless data card acquiring the IPv6 DNS address from a packet data protocol PDP response message; the wireless data card An IPv6 DNS address is provided to an application interface between the host and the wireless data card. Preferably, the wireless data card allocates the IPv6 DNS address to the host by using an application interface between the host and the wireless data card, and includes at least one of the following: the wireless data card passes the host and the wireless number Assigning the IPv6 DNS address to the host according to a network configuration command line tool command interface provided by an operating system of the host by an application interface between the cards; the wireless data card passes the host and the wireless data card The manner in which the application interface modifies the IPv6 DNS address information in the operating system registry of the host assigns the IPv6 DNS address to the host. Preferably, the application interface comprises at least one of the following: a user interface UI, a driver on the host for driving the wireless data card. Preferably, the request information is carried by a network driver interface specification NDIS command and/or an asynchronous transmission AT command. According to another aspect of the present invention, a method for obtaining an IPv6 domain name server DNS address is provided, including: a host sending request information to a wireless data card, wherein the request information is used to request to obtain the IPv6 DNS address; Obtaining the IPv6 DNS address by using an application interface between the host and the wireless data card. Preferably, the acquiring, by the host, the IPv6 DNS address by using an application interface between the host and the wireless data card comprises at least one of: the host invokes an operating system through an application interface between the host and the wireless data card Obtaining the IPv6 DNS address by means of the provided NSTH command interface; the host acquires the IPv6 DNS address by modifying an IPv6 DNS address information in an operating system registry by using an application interface between the wireless data card and the wireless data card. According to still another aspect of the present invention, an IPv6 domain name server DNS address allocation apparatus is provided, including: a receiving module, configured to receive request information from a host, where the request information is used to request to acquire the HV6 DNS address; And an allocation module configured to allocate the IPv6 DNS address to the host through an application interface between the host and the wireless data card. Preferably, the apparatus further includes: an obtaining module, configured to obtain the HV6 DNS address from a packet data protocol PDP response message; and a providing module, configured to provide the obtained IPv6 DNS address to the host and the wireless Application interface between data cards. According to still another aspect of the present invention, an IPv6 domain name server DNS address obtaining apparatus is provided, including: a sending module, configured to send request information to a wireless data card, wherein the request information is used to request to acquire the HV6 DNS address And an obtaining module, configured to obtain the HV6 DNS address by using an application interface between the host and the wireless data card. According to the present invention, the request information from the host is received by the wireless data card, wherein the request information is used to request to obtain an IPv6 DNS address; and the wireless data card passes the IPv6 through an application interface between the host and the wireless data card. The DNS address is assigned to the host, which solves the problem that the host side of the IPv6 device in the related technology cannot obtain the IPv6 DNS address, or obtains the IPv6 DNS address, and needs to make major changes to the service system architecture, thereby realizing the situation without changing the system architecture. Under the same, it is easy and automatic to assign a DNS address to an IPv6 device, which not only has a low cost, but also improves the IPv6 networking and data transmission function of the mobile wireless data communication device to a certain extent.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a flowchart of a method for allocating a DNS address of an IPv6 domain name server according to an embodiment of the present invention; FIG. 2 is a flowchart of a method for acquiring a DNS address of an IPv6 domain name server according to an embodiment of the present invention; FIG. 4 is a block diagram showing a preferred structure of an IPv6 domain name server DNS address allocating apparatus according to an embodiment of the present invention; FIG. 5 is a block diagram of an IPv6 domain name server DNS address according to an embodiment of the present invention; FIG. 6 is a structural block diagram of an apparatus for automatically assigning a wireless data card IPv6 dialing DNS address according to an embodiment of the present invention; FIG. 7 is an automatic IPv6 dialing DNS address of a wireless data card PPP link according to an embodiment of the present invention; Flowchart of the allocation method; FIG. 8 is a flowchart of a method for automatically allocating an IPv6 dialing DNS address of a wireless data card Ethernet link according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. In the embodiment of the present invention, a method for allocating a DNS address of an IPv6 domain name server is provided. FIG. 1 is a flowchart of a method for allocating a DNS address of an IPv6 domain name server according to an embodiment of the present invention. As shown in FIG. Step S102: The wireless data card receives the request information from the host, where the request information is used to request to obtain an IPv6 DNS address. For example, the request information may be carried in a Network Driver Interface (NDIS) command and/or Asynchronous transmission (AT) command; Step S104, the wireless data card allocates an IPv6 DNS address to the host through an application interface between the host and the wireless data card. After receiving the request information for requesting acquisition of the IPv6 DNS address from the host by using the wireless data card, the wireless data card allocates the IPv6 DNS address to the host through the application interface between the host and the wireless data card, as compared with the existing The technology cannot assign an IPv6 DNS address to the host, or the service system architecture needs to be modified to assign an IPv6 DNS address to the host. The above steps do not need to change the architecture of the service system, and IPv6 is implemented by an application carried between the host and the wireless data card. The allocation of the DNS address not only solves the problem that the host side of the IPv6 device in the related technology cannot obtain the IPv6 DNS address, or obtains the IPv6 DNS address, and needs to make major changes to the service system architecture, thereby implementing the system architecture without changing the system architecture. In this case, it is easy and automatic to assign a DNS address to an IPv6 device, which not only has a low cost, but also improves the IPv6 networking and data transmission functions of the mobile wireless data communication device to a certain extent. When the wireless data card allocates an IPv6 DNS address to the host through an application interface between the host and the wireless data card, the application interface can obtain the IPv6 DNS address in multiple ways, for example, receiving a request from the host on the wireless data card. After the information, the wireless data card can obtain an IPv6 DNS address from the packet data protocol PDP response message; the wireless data card provides the obtained IPv6 DNS address to the application interface between the host and the wireless data card. It should be noted that the foregoing wireless data card can be carried on multiple network devices, for example, an IPv6 router, an IPv6 mobile terminal, and the like, and is not limited herein. Preferably, before the wireless data card receives the request information from the host, the IPv6 address needs to be obtained, and the method for obtaining the IPv6 address may be multiple. For example, the wireless data card first obtains the IPv6 address interface identifier from the PDP activation response message. The wireless data card completes the IPv6 address negotiation process with the host; the wireless data card assigns the network prefix address to the host through route advertisement negotiation. The address negotiation process includes: determining, by the IPCPv6 negotiation process, whether the interface identifier is consistent with the interface identifier in the host IPv6 configuration request, or determining whether the interface identifier requested by the host is unique through the address conflict detection process. The method provides an IPv6 address negotiation mode, which enables the system to be compatible with the PPP link dialing mode or the Ethernet link dialing mode, and can be flexibly selected according to specific requirements, thereby improving system compatibility. In addition, the IPv6 DNS address can be assigned to the host by using an application interface between the host and the wireless data card. For example, the wireless data card can invoke the host through an application interface between the host and the wireless data card. The nesth command interface provided by the operating system assigns an IPv6 DNS address to the host. For example, the wireless data card can modify the IPv6 DNS address information in the operating system registry of the host through the application interface between the host and the wireless data card. The IPv6 DNS address is assigned to the host. The method adopts the method of calling the nest script or modifying the registry. Compared with the related technology, the method of assigning the IPv6 DNS address is simpler and easier to implement. It should be noted that the foregoing application interface may include at least one of the following: a User Interface (UI), and a driver for driving a wireless data card on the host. The dialing mode assigned according to the request address may be different, and different application interfaces are selected to implement IPv6 DNS address allocation. For example, the user interface UI may be used to provide user and data card, user and host, and control signaling interaction between the data card and the host. The driver may be various drivers on the host for implementing the data card and the host. The interaction between. The above two preferred application interface forms improve the operability of the system. It should be noted that, in this embodiment, the specific content of the control signaling is not limited, because any control signaling that can be applied in the foregoing method is capable of implementing the function of the control signaling in the foregoing method, It should be within the scope of protection of this application. The embodiment of the present invention further provides a method for obtaining a DNS address of an IPv6 domain name server. FIG. 2 is a flowchart of a method for obtaining a DNS address of an IPv6 domain name server according to an embodiment of the present invention. As shown in FIG. 2, the process includes the following steps: Step S202: The host sends request information to the wireless data card, where the request information is used to request to obtain an IPv6 DNS address. Step S204: The host obtains an IPv6 DNS address by using an application interface between the host and the wireless data card. After the host sends the request information for requesting the acquisition of the IPv6 DNS address to the wireless data card, the host obtains the IPv6 DNS address through the application interface between the host and the wireless data card, and uses the above steps. It also realizes that the IPv6 DNS address is allocated by the application between the host and the wireless data card without changing the architecture of the service system, which not only solves the problem that the host side of the IPv6 device existing in the related art cannot be obtained. An IPv6 DNS address or an IPv6 DNS address requires a major change to the service system architecture. In this way, the DNS address can be easily and automatically assigned to the IPv6 device without changing the system architecture. Moreover, the IPv6 networking and data transmission functions of the mobile wireless data communication device are improved to some extent. Preferably, the host obtains an IPv6 DNS address through an application interface between the host and the wireless data card, and may also adopt the following processing manner: (1) The host invokes an operating system through an application interface between the host and the wireless data card. The nesth command interface is used to obtain the IPv6 DNS address. (2) The host obtains the IPv6 DNS address by modifying the IPv6 DNS address information in the operating system registry through the application interface between the host and the wireless data card. In this embodiment, an IPv6 domain name server DNS address allocation device is also provided. The device is used to implement the foregoing embodiments and preferred embodiments, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and conceivable. FIG. 3 is a structural block diagram of an IPv6 domain name server DNS address allocation apparatus according to an embodiment of the present invention. As shown in FIG. 3, the apparatus includes: a receiving module 32 and an allocating module 34. The apparatus will be described below. The receiving module 32 is configured to receive request information from the host, where the request information is used to request to obtain an HV6 DNS address; the assigning module 34 is coupled to the receiving module 32, and configured to pass the application interface between the host and the wireless data card. Assign an IPv6 DNS address to the host. FIG. 4 is a block diagram of a preferred structure of an IPv6 domain name server DNS address allocation apparatus according to an embodiment of the present invention. As shown in FIG. 4, the apparatus includes: an acquisition module 36 and a providing module 38, in addition to all the modules of FIG. The acquisition module 36 and the provision module 38 are described. The obtaining module 36 is coupled to the receiving module 32 and configured to obtain from the packet data protocol PDP response message.

The HV6 DNS address is provided between the obtaining module 36 and the allocating module 34, and is configured to provide the obtained IPv6 DNS address to an application interface between the host and the wireless data card. FIG. 5 is a structural block diagram of an apparatus for acquiring an IPv6 domain name server DNS address according to an embodiment of the present invention. As shown in FIG. 5, the apparatus includes: a sending module 52 and an obtaining module 54, wherein the sending module 52 is configured to transmit wireless data. The card sends request information, where the request information is used to request to obtain an IPv6 DNS address; the obtaining module 54 is coupled to the sending module 52, and configured to obtain an IPv6 DNS address by using an application between the host and the wireless data card. The above-mentioned embodiment and the preferred embodiment provide a simpler implementation. After obtaining the DNS information from the terminal side, the PC side software is directly set to the host side, thereby completing the automatic configuration of the IPv6 DNS address. In order to make the technical solutions and implementation methods of the present invention clearer, the implementation process will be described in detail below in conjunction with the preferred embodiments. A preferred embodiment of the present invention provides a method for automatically allocating an IPv6 DNS address of a wireless data card, the method comprising: Step 1. When IPv6 dials, the data card requests IPv6 DNS information from the network during the PDP activation process through the PCO-IE method. Step 2: After the connection is successfully established, the IPv6 address negotiation is performed between the data card and the host, and the PC side software (UI or driver) issues a control command to the data card to obtain the DNS address. Step 3: After obtaining the DNS address from the PDP activation response message sent by the network, the data card is reported to the PC side software. Step 4: The PC side software calls the interface of the operating system to set the DNS address to the host. The PDP activation process in step 1 refers to the process of the packet data transmission link established between the wireless data card and the mobile communication network after receiving the dialing request and parameter information sent by the host. The wireless data card sends the parameter information of the PDP connection to the network side for negotiation. After confirming the parameter information, the network side sends the PDP activation response message to the mobile terminal, and the message carries the quality of service of the successfully negotiated packet transmission link (Quality). Of Server, referred to as QoS), IPv6 address, and DNS address. The IPv6 address negotiation process in step 2 refers to the process of assigning parameter information such as an IPv6 address and a DNS address obtained from the network to the host after the data card successfully establishes a wireless connection link with the network side. For IPv6 dialing, since the wireless data card does not support the DHCPv6 Server function, IPv6 address negotiation uses stateless address autoconfiguration (SLAAC). Dialing in the PPP link mode obtains the interface identifier address through IPCPv6 negotiation, and then obtains the prefix address through the router advertisement message (for example, RS/RA) to generate a global IPv6 address. In the Ethernet link mode, the IPv6 address allocation method is adopted. The router advertisement message (for example, RS/RA) is used to obtain the prefix address, and then the MAC address or the interface identifier is randomly generated to form a global IPv6 address. In the above method, after the data card obtains the DNS address from the network side through the PCO-IE method, the DNS address can be reported to the UI or the driver through the control command. For dialing in the PPP link mode, the data card can report the DNS to the UI through the asynchronous transfer command. Then the UI calls the operating system's netsh configuration script to set the DNS to the PC. For Ethernet dialing, the data card can report the DNS address to the UI or driver through the AT command or other control commands. The UI or driver can invoke the operating system's netsh configuration script or modify the IPv6 DNS information in the operating system registry. The way to set the DNS address to the PC. Through the above technical solution, the automatic allocation of the IPv6 DNS address can be realized, and the solution is simple and feasible, and is applicable to all wireless data terminals adopting the IPv6 stateless automatic address allocation mode. FIG. 6 is a structural block diagram of an apparatus for automatically allocating an IPv6 dialing DNS address of a wireless data card according to an embodiment of the present invention. As shown in FIG. 6, the structure includes: a dialing module 60 (having the same function as the obtaining module 36), and IP address information. The processing module 62, the control instruction processing module 64 (the sum of the IP address information processing module 62 and the control instruction processing module 64 is equivalent to the function performed by the providing module 38), the PC side software module 66 (corresponding to the above application interface module), and the host 68. The module of the device will be described below. The dialing module 60 is located in the data card, and is configured to initiate a PDP activation process and obtain an IPv6 DNS address from the network side through the PCO-IE method after the IPv6 dialup connection is established, and after the data card receives the dialing request sent by the host.

The IP address information processing module 62 is configured to: after the connection is successfully established, the host generates an IPv6 address by stateless automatic configuration, and after the data card receives the control instruction sent by the host for acquiring the IPv6 DNS address, the PDP activation message is sent. The DNS address is retrieved and provided to the control instruction processing module 64. The control instruction processing module 64 is configured to return the IPv6 DNS address to the PC side software module 66 after receiving the IPv6 DNS address provided by the IP address information processing module 62.

The PC side software module 66 is configured to set an IPv6 DNS address to the host by calling the netsh command interface provided by the operating system or modifying the IPv6 DNS information in the operating system registry after obtaining the IPv6 DNS address. FIG. 7 is a flowchart of a method for automatically allocating an IPv6 dialing DNS address of a PPP link of a wireless data card according to an embodiment of the present invention. As shown in FIG. 7, the method includes: Step S702: A data card completes a PDP activation process. After the data card receives the IPv6 dialing command, the dialing module initiates a PDP activation process on the air interface. The request information for activating the PDP context (that is, the PDP Context) is sent to the SGSN, and the information includes the following information: Access Point Name (APN), PDP Type, PDP Address, and Challenge Handshake Authentication Protocol (Challenge Handshake Authentication) Protocol, referred to as CHAP, or Password Authentication Protocol (PAP) authentication information, IPv6 DNS, and other information. The PDP type is IPv6, and the PDP address is empty, indicating that the IP address is dynamically allocated on behalf of the request. After receiving the request, the GGSN signs and assigns the mobile terminal through the Remote Hosting Protocol (DHCP)/Remote Authentication Dial-In User Service (RADIUS). The IPv6 address or address prefix, and other parameters, such as QoS parameters, IPv6 DNS server address, etc., and the authentication result and each parameter information are encapsulated in the activated PDP context accept message and sent back to the data card. The PDP activation process is complete. Step S704, after the PDP activation is completed, the data card completes the IPCPv6 negotiation. The data card extracts the interface identifier from the received PDP IPv6 address but ignores the address prefix. If the extracted interface identifier is the same as that carried by the host in the HV6CP configuration request, the data card will send an IPv6 control protocol configuration confirmation (HV6CP Configure-Ack) message to the host. If the extracted interface identifier is carried in the HV6CP configuration request. Differently, the data card will send the host an IPv6 control protocol configuration negative acknowledgement (HV6CP Configure-Nak) message carrying the interface identifier, and the host will retrieve the newly assigned interface identifier from the IPv6CP Configure-Nak message, and then forward the data to the data. The card sends an IPv6CP Configure-Request message requesting the newly assigned interface identifier. Finally, the data card sends an IPv6CP Configure-Ack message to the host, agreeing to use the newly assigned interface identifier. Step S706, the router advertisement negotiation is completed, and the host generates an IPv6 address. After the host accepts the interface identifier from the data card, establish a user plane link from the host to the GGSN and an external Internet Service Provider (ISP)/Intranet. The host is on the link. Use the Router Request (ie RS) and Router Advertisement (ie RA) messages to get the address prefix required for the global IPv6 address from the GGSN. After the network prefix address is obtained, the host generates a global IPv6 address through stateless autoconfiguration. The IPv6 address negotiation is complete. Step S708, the UI sends an AT command to obtain a DNS address. After the IPv6 address negotiation is complete, the UI sends an AT command to the data card to obtain the IPv6 DNS address assigned by the network. Step S710, the data card reports the DNS address. After receiving the AT command for obtaining the IPv6 DNS address, the IPv6 DNS information processing module extracts the IPv6 DNS address from the PDP activation message and provides the address to the AT command processing module. The AT command processing module sets the IPv6 DNS address. Returning to the UI; Step S712, the host sets the DNS address. After obtaining the IPv6 DNS address from the AT command returned by the data card, the UI invokes the netsh network command provided by the operating system to set the IPv6 DNS address to the host, and the IPv6 DNS address assignment is completed. FIG. 8 is a flowchart of a method for automatically allocating an IPv6 dialing DNS address of a wireless data card Ethernet link according to an embodiment of the present invention. As shown in FIG. 8, the method includes: Step S802: A data card completes a PDP activation process. After receiving the IPv6 dialing command, the dialing module initiates a PDP activation process on the air interface, and sends a request message to the SGSN to activate the PDP context (PDP Context). The information includes the following information: APN, PDP type, PDP address, CHAP Or PAP authentication information, IPv6 DNS, etc. (for example, using the PCO-IE method). The PDP type is IPv6, and the PDP address is empty, indicating that the IP address is dynamically allocated on behalf of the request. After receiving the request, the GGSN signs the mobile terminal through local/DHCP/RADIUS and assigns an IPv6 address or address prefix, and other parameters, such as QoS parameters, IPv6. The DNS server address and the like are encapsulated in the activation PDP context accept message and sent back to the data card. The PDP activation process is complete. Step S804, sending a router advertisement and an address conflict detection. After the host detects that the Ethernet device port is UP (that is, data can be transferred normally), address collision detection is initiated. The host sends a neighbor request message to the data card to try to verify whether the interface identifier is unique. If the data card finds that the interface identifier requested by the address host conflicts with a used one, the data card sends a neighbor advertisement to the host to indicate that the duplicate address detection fails. At this point, the host will generate a new interface identifier to resend the neighbor request message. If the address conflict detection is normal, the host sends a Router Request (ie RS) message to the data card. Step S806, the router advertisement negotiation is completed, and the host generates an IPv6 address. After receiving the routing request, the data card responds with the IPv6 prefix assigned by the GGSN through the route advertisement message. After the network prefix address is obtained, the host generates a global IPv6 address by randomly generating the interface identifier address. The IPv6 address negotiation is complete. Step S808, the host sends a control command to obtain a DNS address. After the IPv6 address negotiation is completed, the PC side software (for example, the UI or the driver) sends a control command to the data card to obtain the IPv6 DNS address assigned by the network. Step S810, the data card reports the DNS address. After receiving the control command for obtaining the IPv6 DNS address, the IPv6 DNS information processing module extracts the IPv6 DNS address from the PDP activation message, and provides the address to the control instruction processing module, and the control instruction module returns the IPv6 DNS address. For the personal computer (Personal Computer, PC for short) side software. In step S812, the host sets a DNS address. After obtaining the IPv6 DNS address from the control command returned by the data card, the PC side software sets the IPv6 DNS address to the host by calling the netsh command interface provided by the operating system or modifying the IPv6 DNS information in the operating system registry. IPv6 DNS address The assignment is complete. It should be noted that the steps shown in the flowchart of the accompanying drawings may be performed in a computer system such as a set of computer executable instructions, and, although the logical order is shown in the flowchart, in some cases, The steps shown or described may be performed in an order different than that herein. Embodiments of the present invention provide a method for automatically allocating a wireless data card IPv6 domain name server (i.e., DNS) address. For wireless data cards that support IPv6, the IPv6 address allocation methods mainly include stateful address autoconfiguration (DHCPv6) and stateless address autoconfiguration (SLAAC). When the stateless address is automatically assigned, the host side can only dynamically generate IPv6 and gateway addresses, and cannot automatically obtain the DNS address from the terminal side. Through the foregoing embodiments and the preferred embodiments, the DNS obtained by the wireless data card is reported to the PC side software, and then the PC side software is set by calling the operating system interface, and the related technology is solved. The problem that the host cannot obtain the IPv6 DNS address from the terminal side can realize the simple and automatic assignment of the DNS address to the IPv6 device without changing the system architecture, which not only lowers the cost, but also improves the mobility to some extent. IPv6 networking and data transmission functions of wireless data communication equipment. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A method for allocating a DNS address of an IPv6 domain name server, comprising: receiving, by a wireless data card, request information from a host, where the request information is used to request to acquire the IPv6 DNS address;

The wireless data card allocates the IPv6 DNS address to the host through an application interface between the host and the wireless data card.

2. The method according to claim 1, wherein, after the wireless data card receives the request information from the host, the method further includes:

And the wireless data card obtains the IPv6 DNS address from a packet data protocol PDP response message; the wireless data card provides the obtained IPv6 DNS address to an application interface between the host and the wireless data card.

3. The method according to claim 1, wherein the wireless data card assigns the IPv6 DNS address to the host through an application interface between a host and the wireless data card, and comprises at least one of the following: The wireless data card allocates the IPv6 DNS address to the host by means of an application interface between the host and the wireless data card to invoke a network configuration command line tool command interface provided by an operating system of the host;

The wireless data card allocates the IPv6 DNS address to the host by modifying an IPv6 DNS address information in an operating system registry of the host through an application interface between the host and the wireless data card.

4. The method according to claim 1, wherein the application interface comprises at least one of the following:

a user interface UI, a driver on the host for driving the wireless data card.

5. The method of claim 1, wherein the request information is carried by a network driver interface specification NDIS command and/or an asynchronous transmission AT command.

A method for obtaining a DNS address of an IPv6 domain name server, including:

The host sends the request information to the wireless data card, where the request information is used to request to acquire the HV6 DNS address; The host acquires the IPv6 DNS address through an application interface between the host and the wireless data card. The method according to claim 6, wherein the acquiring, by the host, the IPv6 DNS address by using an application interface between the host and the wireless data card comprises at least one of the following:

Obtaining, by the host, the IPv6 DNS address by using an application interface provided by the operating system by using an application interface between the wireless data card;

The host obtains the IPv6 DNS address by modifying an IPv6 DNS address information in an operating system registry by using an application interface between the host and the wireless data card. An IPv6 domain name server DNS address allocation device, comprising: a receiving module, configured to receive request information from a host, where the request information is used to request to obtain the IPv6 DNS address;

And an allocation module configured to allocate the IPv6 DNS address to the host through an application interface between the host and the wireless data card. The device according to claim 8, further comprising:

An obtaining module, configured to obtain the IPv6 DNS address from a packet data protocol PDP response message;

And providing a module, configured to provide the obtained IPv6 DNS address to an application interface between the host and the wireless data card. An IPv6 domain name server DNS address obtaining device includes:

a sending module, configured to send request information to the wireless data card, where the request information is used to request to acquire the IPv6 DNS address;

And an obtaining module, configured to obtain the HV6 DNS address by using an application interface between the host and the wireless data card.