CN110601984A - Method and device for acquiring local service and generating link local address - Google Patents

Abstract

Embodiments of the present application provide a method and device for obtaining local services and generating link-local addresses, which are applied to user equipment, and the method includes: after the user equipment accesses the IPv6 network, determining whether a router advertisement message is received , wherein, the router advertisement message carries a uniform resource identifier URI used to indicate the entry of the local service; if the router advertisement message is not received, obtain the link-local address corresponding to the target local service, wherein the Service description information corresponding to the target local service is embedded in the link-local address; based on the link-local address, the target local service is acquired. In this way, acquiring local services through link-local addresses can achieve the desired target local services without relying on other servers such as DNS servers and DHCP servers, and only needs to access the IPv6 network.

Description

A method and device for obtaining local services and generating link-local addresses

technical field

The present application relates to the technical field of the Internet, and in particular to a method and device for obtaining local services and generating link-local addresses.

Background technique

In recent years, more and more people frequently travel around due to the needs of life and work. However, local services such as local time service, local emergency communication service, local network authentication service, local geographic information service, etc. often change with the geographical location of the user vary with location.

At present, local services are obtained mainly through DHCP (Dynamic Host Configuration Protocol) or DNS (Domain Name System, domain name system). However, since these implementations depend on other services such as DNS servers and DHCP servers, The system structure is relatively complex, which is not conducive to deployment, which makes the support of user equipment poor. It often happens that the user equipment cannot obtain the corresponding local services after connecting to the IPv6 (Internet Protocol Version 6, Internet Protocol Version 6) network in a certain place. question.

Contents of the invention

In view of this, the embodiment of the present application provides a method and device for acquiring local services and generating link-local addresses. The link-local addresses are used to acquire local services, which can achieve independence from other servers such as DNS servers and DHCP servers. Access to the IPv6 network is required to obtain the required target local services.

The embodiment of the present application mainly provides the following technical solutions:

In the first aspect, the embodiment of the present application provides a method for obtaining local services, which is applied to user equipment, and the method includes: after the user equipment accesses the IPv6 network, determining whether a router advertisement message is received, wherein, The router advertisement message carries a uniform resource identifier URI used to indicate the entry of the local service; if the router advertisement message is not received, obtain the link-local address corresponding to the target local service, wherein the link-local Service description information corresponding to the target local service is embedded in the address; and the target local service is acquired based on the link-local address.

In a second aspect, the embodiment of the present application provides a method for generating a link-local address, which is applied to a user equipment, and the method includes: after the user equipment accesses the IPv6 network, obtaining the IPv6 address corresponding to the user equipment Service description information corresponding to the target local service, wherein the service description information includes: a service identifier and a communication protocol; embedding the service description information into the last 64 bits of the IPv6 address to generate the above-mentioned method for obtaining the local service Link-local addresses as described in Methods.

In the third aspect, the embodiment of the present application provides a device for obtaining local services, which is applied to user equipment, and the device includes: a determining unit, configured to determine Whether a router advertisement message is received, wherein the router advertisement message carries a uniform resource identifier URI used to indicate a local service entry; the first obtaining unit is configured to determine that the router advertisement has not been received by the determining unit In the notification message, acquire a link-local address corresponding to the target local service, wherein the link-local address is embedded with service description information corresponding to the target local service; the second acquiring unit is configured to, based on the link-local address, Get the target local service.

In a fourth aspect, the embodiment of the present application provides an apparatus for generating a link-local address, which is applied to a user equipment, and the apparatus includes: an obtaining unit, configured to obtain the link-local address corresponding to the user equipment after the user equipment accesses the IPv6 network. The service description information corresponding to the IPv6 address of the target local service, wherein the service description information includes: a service identifier and a communication protocol; a generating unit configured to embed the service description information into the last 64 bits of the IPv6 address , to generate the link-local address described in the above method for obtaining local services.

In the fifth aspect, the embodiment of the present application provides a computer-readable storage medium, the storage medium includes a stored program, wherein, when the program is running, the user equipment where the storage medium is located is controlled to execute the above-mentioned method of obtaining local services method or steps of the above-mentioned method for generating a link-local address.

In a sixth aspect, an embodiment of the present application provides a user equipment, including: at least one processor; and at least one memory and a bus connected to the processor; wherein, the processor and the memory are connected through the The bus completes the mutual communication; the processor is used to call the program instructions in the memory to execute the steps of the above-mentioned method for obtaining a local service or the above-mentioned method for generating a link-local address.

In the method and device for acquiring local services and generating a link-local address provided by the embodiments of the present application, after the user equipment accesses the IPv6 network, the user equipment determines whether a router advertisement message is received, wherein the router advertisement message carries information for Indicates the uniform resource identifier URI of the local service entry; if the user equipment determines that the router advertisement message has not been received, the user equipment obtains the link-local address corresponding to the target local service, wherein the link-local address is embedded with the target local The service description information corresponding to the service; finally, the target local service is obtained based on the link-local address. In this way, the local service can be obtained through the link-local address carrying the service description information of the local service, which can effectively avoid relying on other servers such as DNS server and DHCP server, and only need to access the IPv6 network to obtain the required target local service , the architecture is relatively simple and easy to deploy.

Additional features and advantages of the application will be set forth in the description which follows, and, in part, will be obvious from the description, or may be learned by practice of the application. Other advantages of the present application can be realized and obtained through the solutions described in the specification, claims and drawings.

Description of drawings

The accompanying drawings are used to provide an understanding of the technical solution of the present application, and constitute a part of the description, and are used together with the embodiments of the present application to explain the technical solution of the present application, and do not constitute a limitation to the technical solution of the present application.

FIG. 1 is a first schematic flow diagram of a method for obtaining local services in an embodiment of the present application;

FIG. 2 is a first schematic diagram of a link-local address in an embodiment of the present application;

FIG. 3 is a second schematic diagram of a link-local address in an embodiment of the present application;

FIG. 4 is a second schematic flow diagram of a method for obtaining local services in an embodiment of the present application;

FIG. 5 is a schematic flowchart of a method for generating a link-local address in an embodiment of the present application;

FIG. 6 is a schematic structural diagram of a device for obtaining local services in an embodiment of the present application;

FIG. 7 is a schematic structural diagram of an apparatus for generating a link-local address in an embodiment of the present application;

FIG. 8 is a schematic structural diagram of a user equipment in an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

An embodiment of the present application provides a method for obtaining local services. In practical applications, the method for obtaining local services is applied to user equipment. FIG. 1 is a schematic flow diagram of a method for obtaining local services in the embodiment of the present application. Referring to FIG. 1, the method for obtaining local services may include:

S101: After the user equipment accesses the IPv6 network, determine whether a router advertisement message is received;

Wherein, the router advertisement message carries a Uniform Resource Identifier (URI) for indicating the entry of the local service.

Specifically, if the user equipment determines that it has not received the RA message issued by the router, S102-S103 is executed.

S102: Obtain a link-local address corresponding to the target local service;

Wherein, service description information corresponding to the target local service is embedded in the link-local address.

Here, the service description information may include: service identifier and communication protocol.

In practical applications, a service identifier is an identifier used to represent a local service. Specifically, the service identifier may be a string identifier or a digital identifier, and of course, it may also be other identifiers that can uniquely identify the local service. Here, the embodiment of the present application does not make specific limitations.

For example, taking the fire alarm service in the local emergency communication service as an example, the service identifier corresponding to the fire alarm service may be set to "FIRE" or "119". Of course, it can also be set to other.

In practical applications, the communication protocol refers to the communication, entry port, resolution protocol, etc. that the user equipment needs to follow when accessing the local service.

Exemplarily, taking the fire alarm service in the local emergency communication service as an example, assuming that the fire alarm service is realized by using a WWW (World Wide Web, World Wide Web) webpage, the communication protocol of the fire alarm service can be defined as "TCP_WWW_XML", wherein, The communication protocol "TCP_WWW_XML" refers to the use of TCP (Transmission Control Protocol, Transmission Control Protocol) technology and HTTP (HyperText Transfer Protocol, Hypertext Transfer Protocol) technology to access the WWW service on port 80, and the obtained content is XML (Extensible Markup Language , Extensible Markup Language) documentation.

In practical applications, as shown in Figure 2, it is stipulated in the IPv6 protocol that an IPv6 address has 128 bits and can be divided into two parts: the first 64-bit subnet prefix (subnet prefix) used for network routing and the subnet address used in the subnet The last 64 bits of the interface identifier (Interface Id, IID). Generally speaking, the subnet prefix is used by the user equipment through the operator, the Regional Internet Registry (Regional Internet Registry, RIR), the Internet Assigned Numbers Authority (The Internet Assigned Numbers Authority, IANA), etc. Layers are allocated, and the generation scheme of the interface identifier is a unique problem of IPv6. The interface identifier can be generated by the user equipment in a stateless manner, or can be generated by a DHCP server in a stateful manner. Then, when facing the IPv6 network, in order to avoid the dependence on other servers such as DHCP server and DNS server, the user equipment can encode the service description information corresponding to the local service into the IPv6 address in a stateless way to generate a link-local address In this way, since the service description information is directly encoded into the last 64 bits of the link-local address, after the user equipment obtains the link-local address, the user equipment can obtain the link-local address by accessing the link-local address to the local service corresponding to the service description information.

The following describes how to obtain the link-local address corresponding to the target local service with a specific example.

In another embodiment of the present application, the above S102 may include the following steps 1021-1022:

Step 1021: Obtain the IPv6 address corresponding to the user equipment and the service description information corresponding to the target local service, wherein the service description information includes: service identifier and communication protocol;

Specifically, after the user equipment is connected to the IPv6 network, the user equipment can automatically obtain its own IPv6 address. Next, as an example, when the user needs the target local service, the user can input the service description information corresponding to the target local service to the user equipment through an input operation, or the user can perform a selection operation on the user equipment to select the target local service corresponding In this way, the user equipment can obtain the service description information corresponding to the target local service that the user needs to obtain according to the user's input operation or selection operation. Thus, the user equipment obtains the IPv6 address corresponding to the user equipment and the service description information corresponding to the target local service.

Step 1022: Embedding the service description information corresponding to the target local service into the last 64 bits of the IPv6 address to generate a link-local address corresponding to the target local service.

In the specific implementation process, the above step 1022 may include: encoding the service description information to obtain the interface identifier of the link-local address; splicing the subnet prefix in the IPv6 address with the interface identifier of the link-local address to generate the target local address The link-local address corresponding to the service.

As an example, in order to better distinguish the obtained interface ID of the link-local address from various existing interface IDs, the first 48 bits of the last 64 bits of the link-local address can be set to be generated based on service description information and set the last 16 bits of the last 64 bits of the link-local address as the encoding information preset by those skilled in the art based on actual experience, that is, the encoding information generated according to the service description information and the preset encoding information to generate link-local addresses. In this way, since the service description information includes: service identification and communication protocol, then, taking the service identification and communication protocol respectively encoded as 24-bit coded information as an example, thus, in the specific implementation process, the above-mentioned service description information is encoded to obtain the link The steps of the interface identifier of the local address may include: encoding the service identifier to obtain the 24-bit coded information corresponding to the service identifier; encoding the communication protocol to obtain the 24-bit encoded information corresponding to the communication protocol; The corresponding 24-bit coded information, the 24-bit coded information corresponding to the communication protocol, and the preset 16-bit coded information are spliced to obtain the interface identifier of the link-local address.

For example, referring to FIG. 3 , in order to distinguish the interface identifier of the generated link-local address from the interface identifiers of various existing IPv6 addresses, the inventors of the present application found that the preset The 16-bit encoding information is set to 0, then the first 24 bits of the interface ID of the generated link-local address are the 24-bit encoding information corresponding to the service ID, and the middle 24 bits of the interface ID of the generated link-local address The bit is the 24-bit coded information corresponding to the communication protocol, and the last 16 bits of the interface identifier of the generated link-local address are 0.

For another example, in order to distinguish the interface identifier of the link-local address from the interface identifiers of various existing IPv6 addresses, in addition to setting the preset 16-bit encoding information to 0, you can also set the service identifier Among the 6 bytes in the first 48 bits composed of the corresponding 24-bit code information and the 24-bit code information corresponding to the communication protocol, any byte cannot be 0xFF, and the first byte is not 0, so , the obtained interface identifiers of link-local addresses can be distinguished from most schemes for generating interface identifiers with special semantics. For example, the inventor of the present application found in the process of implementing the embodiment of the present application that in the IVI address generation scheme, there is no case where the last 16 bits of the interface identifier are 0. Here, IVI is a SIIT (Stateless IP/ICMP Translation, stateless IP/ICMP translation) protocol conversion technology, can solve the network layer translation of IPv6 network and IPv4 network packets; and in the lightweight 4over6 (IPv4 overIPv6) solution, the first 16 bits of the interface identifier are all 0 ; In EUI64 (64-bit Extended UniqueIdentifier, 64-bit extended unique identifier), the middle 16 bits of the interface identifier are 0xFFFE; in addition, most of the other artificially specified interface identifiers use the last 16 bits as the IPv4 address part or as a digital identifier, this reserved address space does not conflict with anycast addresses in the subnet. Therefore, as verified by the inventors of the present application during the specific implementation process, it can be seen that the interface identifier of the link-local address in the embodiment of the present application can be well distinguished from various existing interface identifiers, and then the link-local address is based on the link-local address. Access to local services can be achieved very efficiently.

In practical applications, the service identifier of the local service can be a string identifier or a digital identifier. Then, in order to obtain the 24-bit coded information corresponding to the service identifier, when the service identifier is a string identifier, you can pass the string encoding The service identifier can be encoded by means of digital encoding; when the service identifier is a digital identifier, the service identifier can also be encoded by digital encoding. Of course, the service identifier may also be encoded in other encoding manners, which are not specifically limited in this embodiment of the present application.

The following describes how to encode the service identifier with a specific example.

First, a specific example is used to introduce how to encode the service ID by means of character string encoding.

As an example, when the service identifier is a character string identifier, a 6-bit encoded character string encoding manner may be used for encoding. Among them, each character in the service identifier can be mapped to 6-bit coded information. However, when the service identifier needs to be encoded into 24-bit coded information, it indicates that the 6-bit coded string can hold up to 4 characters after encoding. At this time, if the length of characters that can be accommodated is not enough, that is, the length of the service identifier is longer than the encoded string, an additional stop character needs to be added at the end.

Furthermore, when the service identifier is a character string identifier, in order to avoid conflicts with the settings of the IPv6 network, the use of 6-bit codes such as "000000" and "111111" can be avoided during specific implementation.

Exemplarily, the 37 characters "a-z (case-insensitive), 0-9, -" that may be used by DNS can be used for mapping, plus the additional stop character required when the length of the service identifier is longer, Therefore, the total number of characters can be 38. Thus, the 6-bit coding table shown in Table 1 below can be obtained. Next, taking the local service as the local fire alarm service as an example, assuming that the service ID of the fire alarm service is "FIRE", then, after encoding the service ID through the encoding table, the 24 corresponding to the service ID can be obtained. The bit-encoded information is 0x454740.

character 6 bit encoding character 6 bit encoding character 6 bit encoding stop character 000001 C/c 001110 P/p 011011 0 000010 D/d 001111 Q/q 011100 1 000011 E/e 010000 R/r 011101 2 000100 F/f 010001 S/s 011110 3 000101 G/g 010010 T/t 011111 4 000110 H/h 010011 U/u 100000 5 000111 I/i 010100 V/v 100001 6 001000 J/j 010101 W/w 100010 7 001001 K/k 010110 X/x 100011 8 001010 L/l 010111 Y/y 100100 9 001011 M/m 011000 Z/z 100101 A/a 001100 N/n 011001 - 100110 B/b 001101 O/o 011010

Table 1

Secondly, a specific example is used to introduce the encoding of the service identifier by means of digital encoding.

As an example, each service identifier can be set to correspond to a positive integer greater than 0. For example, still taking the local service as the local fire alarm service as an example, the service identifier of the fire alarm service can be set to 1, then the fire alarm service The 24-bit coded information (that is, 3-byte coded information) corresponding to the service ID of the service is 0x000001. It should be noted that the above numbers are for example only, and are not specifically limited in this embodiment of the present application.

In practical applications, in order to obtain the 24-bit encoding information corresponding to the communication protocol of the local service, the communication protocol can be encoded by string encoding, and the communication protocol can also be encoded by digital encoding. Of course, you can also The communication protocol is encoded in other encoding manners, which are not specifically limited in this embodiment of the present application.

For example, still taking the fire alarm service in the local emergency communication service as an example, assuming that the fire alarm service is realized by using the WWW web page, the communication protocol of the fire alarm service can be defined as "TCP_WWW_XML". , because the character strings contained in the communication protocol are often relatively long, in order to facilitate coding, the communication protocol can be coded in a digital coding manner. Exemplarily, the communication protocol can be encoded in an overall manner. For example, "TCP_WWW_XML" can be directly encoded as 1, and the 24-bit encoding information (3-byte encoding information) corresponding to the encoded communication protocol can be 0x000001, or The communication protocol is encoded separately, that is, the three parts of the protocol, port, and resolution format can be encoded separately. For example, if TCP is encoded as 1, WWW is encoded as 1, and XML is encoded as 1, the encoding The 24-bit coded information (3-byte coded information) corresponding to the subsequent communication protocol may be 0x010101.

For another example, take the target local service as the fire alarm service as an example, and assume that the service identifier corresponding to the fire alarm service is "FIRE", and the communication protocol corresponding to the fire alarm service is "TCP_WWW_XML", then, firstly, based on the above Table 1 The code table shown encodes the service identification of the fire alarm service through the string encoding method, and the 24-bit encoding information (that is, the 3-byte encoding information) corresponding to the service identification of the fire alarm service can be obtained as 0x454740; and then through the digital encoding method Encode the communication protocol of the fire alarm service, and the 24-bit coded information corresponding to the communication protocol of the fire alarm service (that is, the 3-byte coded information) can be obtained as 0x000001, then the link corresponding to the local fire alarm service for the fire alarm through the WWW The local address of the road can be the address fe80::4547:4000:1:0. Then, when the user needs to make a fire alarm, he can access the port 80 of the local address of the link through the user equipment, and use the WWW form to directly report to the police.

S103: Obtain the target local service based on the link-local address.

In practical applications, the target local service can be local DNS service, local NTP (Network Time Protocol, Network Time Protocol) service, local network authentication service, local network fault report service, local geographic information service, local emergency communication service, local business service , one or more of local network charging services. Certainly, other types of services may also be provided, such as local life information services, etc., which are not specifically limited in this embodiment of the present application.

For example, the local DNS service can be used to provide the DNS server address; the local NTP service can be used to synchronize the clock of the user equipment with the local time; the local network authentication service can be used to provide the address of the network authentication server; the local network fault report service can be used to provide The local network fault repair number; the local geographic information service can be used to provide the longitude information, latitude information and height information of the current geographic location of the user equipment; the local emergency communication service can be used to provide fire alarm numbers, alarm numbers, emergency assistance numbers, etc. Communication numbers; local business services can be used to provide business information such as shopping and travel around the local area; local network charging services can be used to provide local network charging information and process information; local life information services can be used to provide daily life, weather and other information.

In a specific implementation process, the above S103 may include: accessing the link-local address through a communication protocol, and obtaining the target local service corresponding to the service identifier.

Specifically, in an IPv6 network, since the interface identifier of the link-local address obtained by the user equipment through S102 is embedded with service description information, that is, the service description information is encoded in the last 64 bits of the IPv6 address, where the service The description information includes: a service identifier and a communication protocol. Then, the user equipment can directly access the link-local address through the communication protocol, so as to obtain the corresponding local service indicated by the service identifier. In this way, it is possible to obtain local related services, such as emergency communication services, alarm services, etc., without using any other services such as domain name resolution and domain name resolution in the LAN before network authentication.

So far, the process of obtaining the local service based on the link-local address carrying the service description information corresponding to the local service is completed.

It can be seen from the above that, in the method for obtaining local services provided by the embodiment of the present application, after the user equipment accesses the IPv6 network, the user equipment can determine whether a router advertisement message is received, wherein the router advertisement message carries information for indicating the local The uniform resource identifier URI of the service entry; if the user equipment determines that it has not received the router advertisement message, the user equipment obtains the link-local address corresponding to the target local service, wherein the link-local address is embedded with the target local service The corresponding service description information; finally, the target local service can be obtained based on the link-local address. In this way, the local service can be obtained through the link-local address carrying the service description information of the local service, which can effectively avoid relying on other servers such as DNS server and DHCP server, and only need to access the IPv6 network to obtain the required target local service , the architecture is relatively simple and easy to deploy.

Based on the foregoing embodiments, this embodiment of the present application provides a method for obtaining local services. It can be applied to the following scenarios: the URI used to indicate the entrance of the local service is added in the router advertisement in advance, and when the user equipment accesses the IPv6 network and has completed network authentication, the user equipment receives the URI sent by the router to carry useful information. The router advertisement message is used to indicate the URI of the local service entrance, so that the user equipment can obtain the required local service by accessing the URI.

FIG. 4 is a second schematic flow diagram of the method for obtaining local services in the embodiment of the present application. Referring to FIG. 4, the method for obtaining local services may include:

S101: After the user equipment accesses the IPv6 network, determine whether a router advertisement message is received;

Wherein, the router advertisement message carries a Uniform Resource Identifier (URI) for indicating the entry of the local service; here, the URI is the entry URI of the local service, which contains relevant contents of various local configurations, usage, information, and the like.

In practical applications, when deploying an IPv6 network, the URI used to indicate the entrance of the local service can be added in the router advertisement in advance, and since the router will periodically send the router advertisement message at a preset time interval, then, when the user equipment receives After entering the IPv6 network and completing network authentication, the user equipment may receive the router advertisement message.

As an example, the RA includes a local information (LOCAL_INFO) option, the content of which is a URI address, the length of the option (including the type and length fields) is 8 bytes, and the insufficient part is filled with 0.

It should be noted that, here, in the embodiment of this application, an 8-byte option is used in the router advertisement message to provide a URI used to indicate the entrance of the local service, and then the local service home page corresponding to the URI provides each local service instead of directly using a 1-byte option in the router advertisement message to provide a local service. In this way, when the URI used to indicate the entry of the local service remains unchanged, there is no need to frequently update the router advertisement message Setting, it is very convenient to add, delete, and modify the supported local services, and then, when more local services need to be supported, the scalability is high.

Specifically, if it is determined through execution of S101 that the user equipment has obtained a router advertisement message carrying a URI indicating the entrance of the local service, S401-S403 may be executed to obtain the local service based on the URI; and if it is determined through execution of S101 that the user equipment If the device has not obtained the router advertisement message carrying the URI used to indicate the entry of the local service, it may execute S102-S103 to obtain the local service based on the link-local address.

S401: Analyze the router advertisement message to obtain the URI;

As an example, in non-emergency situations, in order to obtain more detailed and rich local services, if the user equipment determines that it has received a router advertisement message carrying a URI indicating the entry of the local service, it can obtain the URI from the router advertisement message. Parses out the URI.

S402: Based on the URI, access the homepage of the local service for providing the local service;

S403: Obtain the target local service from the local service homepage.

In the specific implementation process, the above-mentioned local service home page may include: local domain name system DNS service, local network time protocol NTP service, local network authentication service, local network fault repair service, local geographic information service, local emergency communication service, local business service , one or more of local network charging services. Of course, the local service homepage may also provide other local services, which are not specifically limited in this embodiment of the present application.

As an example, the local service homepage can be displayed as a browser homepage. After the user equipment accesses the URI, the user equipment can display the local service homepage to the user, wherein multiple local services can be displayed on the local service homepage, and the user can To operate on the local service homepage, the user equipment obtains the target local service from the local service homepage according to the user's operation.

It can be seen from the above that the method for obtaining local services provided by the embodiment of the present application encodes the service identifier and the communication protocol into a link-local address, so that the user equipment can be connected without relying on DNS and DHCP before going through Internet authentication. In the case of basic infrastructure such as router notifications, access to local services that can be realized without accessing the Internet, such as emergency communication services, alarm services, etc.; The URI used to indicate the entry of local services to obtain more detailed local services.

Based on the same inventive concept, an embodiment of the present application provides a method for generating a link-local address. FIG. 5 is a schematic flowchart of a method for generating a link-local address in an embodiment of the present application. Referring to FIG. 5, the method for generating a link-local address may include:

S501: After the user equipment accesses the IPv6 network, obtain the IPv6 address corresponding to the user equipment and the service description information corresponding to the target local service;

Wherein, the service description information includes: service identification and communication protocol.

Here, the service identifier is an identifier used to represent a local service. The communication protocol refers to the communication, entry port, and resolution protocol that must be followed to access local services.

S502: Embedding service description information into the last 64 bits of the IPv6 address to generate a link-local address.

In another embodiment of the present application, the above S502 may include the following steps 5021-5022:

Step 5021: Encode the service description information to obtain the interface identifier of the link-local address;

Step 5022: Concatenate the subnet prefix in the IPv6 address with the interface identifier of the link-local address to generate a link-local address.

In order to better distinguish the interface identifier of the obtained link-local address from the existing various interface identifiers, the first 48 bits of the last 64 bits of the link-local address can be set as encoding information generated based on service description information , and set the last 16 bits of the last 64 bits of the link-local address as coded information preset by those skilled in the art based on actual experience, that is, to generate a link based on the coded information generated from the service description information and the preset coded information. Road local address. In this way, since the service description information includes: service identification and communication protocol, then, in the specific implementation process, the above step 5021 may include: encoding the service identification to obtain 24-bit information corresponding to the service identification; encoding the communication protocol, The 24-bit information corresponding to the communication protocol is obtained; the 24-bit information corresponding to the service identification, the 24-bit information corresponding to the communication protocol, and the preset 16-bit information are sequentially spliced to obtain the interface identification of the link local address.

It should be noted that the link-local address in the embodiment of this application is consistent with that in one or more of the above embodiments. For the technical details not disclosed in the embodiment of this application, please refer to the above one or more embodiments It should be understood from the description of the link-local address, and here, the embodiment of the present application will not repeat it again.

It can be seen from the above that the method for generating a link-local address provided by the embodiment of the present application obtains the IPv6 address corresponding to the user equipment and the service description information corresponding to the target local service after the user equipment accesses the IPv6 network, wherein the service description information It includes: service identification and communication protocol, and then embeds service description information into the last 64 bits of the IPv6 address to generate a link-local address. In this way, by encoding the description information corresponding to the target local service into the link-local address, it is possible to achieve independent of DNS server, DHCP server and other servers, and only need to access the IPv6 network to obtain the link-local address based on the link-local address. The required target local service has a relatively simple architecture and is easy to deploy.

Based on the same inventive concept, as an implementation of the above method, an embodiment of the present application provides an apparatus for obtaining local services. In practical applications, the apparatus for obtaining local services can be applied in user equipment. FIG. 6 is a schematic structural diagram of an apparatus for obtaining local services in an embodiment of the present application. Referring to FIG. 6 , the apparatus 60 may include: a determining unit 601 configured to, after the user equipment accesses the Internet Protocol Version 6 IPv6 network, Determine whether a router advertisement message is received, wherein the router advertisement message carries a uniform resource identifier URI used to indicate a local service entry; the first obtaining unit 602 is configured to determine that the router advertisement message has not been received, Obtaining a link-local address corresponding to the target local service, wherein service description information corresponding to the target local service is embedded in the link-local address; the second obtaining unit 603 is configured to obtain the target local service based on the link-local address.

In the embodiment of the present application, the first obtaining unit is configured to obtain the IPv6 address corresponding to the user equipment and the service description information corresponding to the target local service, wherein the service description information includes: a service identifier and a communication protocol; the service description information is embedded into In the last 64 bits of the IPv6 address, a link-local address is generated.

In the embodiment of the present application, the first acquisition unit is configured to encode the service description information to obtain the interface identifier of the link-local address; splice the subnet prefix in the IPv6 address with the interface identifier of the link-local address to generate Link-local address.

In the embodiment of the present application, the first acquisition unit is used to encode the service identifier to obtain the 24-bit coded information corresponding to the service identifier; to encode the communication protocol to obtain the 24-bit coded information corresponding to the communication protocol; The 24-bit encoding information corresponding to the identification, the 24-bit encoding information corresponding to the communication protocol, and the preset 16-bit encoding information are spliced to obtain the interface identification of the link-local address.

In the embodiment of the present application, the second acquiring unit is configured to access the link-local address through the communication protocol, and acquire the target local service corresponding to the service identifier.

In other embodiments of the present application, the above-mentioned device for obtaining local services may further include: a parsing unit configured to parse the router notification message to obtain the URI if the determining unit does receive the router notification message; the access unit uses Based on the URI, access the local service homepage for providing the local service; the third acquisition unit is used to acquire the target local service from the local service homepage.

In the embodiment of the present application, the above-mentioned local service home page may include: local domain name system DNS service, local network time protocol NTP service, local network authentication service, local network fault report service, local geographic information service, local emergency communication service, local One or more of commercial services and local network charging services.

Based on the same inventive concept, as an implementation of the foregoing method, an embodiment of the present application provides an apparatus for generating a link-local address. In practical applications, the device for generating a link-local address can be applied in user equipment. FIG. 7 is a schematic structural diagram of an apparatus for generating a link-local address in an embodiment of the present application. Referring to FIG. 7 , the apparatus 70 may include: an obtaining unit 701 for accessing an Internet Protocol version 6 IPv6 network in a user equipment Afterwards, the service description information corresponding to the IPv6 address corresponding to the user equipment and the target local service is obtained, wherein the service description information includes: a service identifier and a communication protocol; a generation unit 702 is configured to embed the service description information into the last 64 bits of the IPv6 address In the above one or more embodiments, the link-local address is generated.

In the embodiment of the present application, the generating unit is configured to encode the service description information to obtain the interface identifier of the link-local address; splicing the subnet prefix in the IPv6 address and the interface identifier of the link-local address to generate a link local address.

In the embodiment of the present application, the generation unit is used to encode the service identifier to obtain the 24-bit coded information corresponding to the service identifier; to encode the communication protocol to obtain the 24-bit coded information corresponding to the communication protocol; The corresponding 24-bit coded information, the 24-bit coded information corresponding to the communication protocol, and the preset 16-bit coded information are spliced to obtain the interface identifier of the link-local address.

Based on the same inventive concept, an embodiment of the present application provides a user equipment. FIG. 8 is a schematic structural diagram of a user equipment in an embodiment of the present application. Referring to FIG. 8, the user equipment 80 includes: at least one processor 81; and at least one memory 82 and a bus 83 connected to the processor 81; wherein, The processor 81 and the memory 82 communicate with each other through the bus 83; the processor 81 is used to call the program instructions in the memory 82 to execute the steps of the method for obtaining local services in one or more of the above embodiments.

Correspondingly, based on the same inventive concept, an embodiment of the present application further provides a processor for running a program, wherein the steps of the method for obtaining a local service in one or more of the above embodiments are executed when the program is running.

Above-mentioned processor can be by central processing unit (Central Processing Unit, CPU), microprocessor (MicroProcessor Unit, MPU), digital signal processor (Digital Signal Processor, DSP), or Field Programmable Gate Array (Field Programmable Gate Array, FPGA) ) and so on. Memory may include non-permanent memory in computer-readable media, random access memory (Random Access Memory, RAM) and/or non-volatile memory, such as read-only memory (Read Only Memory, ROM) or flash memory (Flash RAM ), the memory includes at least one memory chip.

It should be noted that, in this embodiment of the application, if the method for obtaining local services in one or more of the above embodiments is implemented in the form of software function modules and sold or used as an independent product, it can also be stored in a computer readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes several instructions for Make a user equipment (which may be a personal computer, server, or network equipment, etc.) execute all or part of the methods in the various embodiments of the present application.

Correspondingly, based on the same inventive concept, an embodiment of the present application further provides a computer-readable storage medium, the above-mentioned computer-readable storage medium includes a stored program, wherein, when the program is running, the user equipment where the storage medium is located is controlled to execute the above-mentioned one or more The steps of the method for obtaining local services in an embodiment.

It should be pointed out here that: the description of the above embodiment of the device, user equipment or computer-readable storage medium is similar to the description of the above method embodiment, and has similar beneficial effects as the method embodiment. For technical details not disclosed in the embodiments of the apparatus, user equipment or computer-readable storage medium of the present application, please refer to the description of the method embodiments of the present application for understanding.

The application describes a number of embodiments, but the description is illustrative rather than restrictive, and it will be obvious to those of ordinary skill in the art that within the scope of the embodiments described in the application, There are many more embodiments and implementations. Although many possible combinations of features are shown in the drawings and discussed in the detailed description, many other combinations of the disclosed features are possible. Except where expressly limited, any feature or element of any embodiment may be used in combination with, or substituted for, any other feature or element of any other embodiment.

This application includes and contemplates combinations of features and elements known to those of ordinary skill in the art. The disclosed embodiments, features and elements of this application can also be combined with any conventional features or elements to form unique inventive solutions as defined by the claims. Any feature or element of any embodiment may also be combined with features or elements from other inventive solutions to form yet another unique inventive solution as defined by the claims. It is therefore to be understood that any of the features shown and/or discussed in this application can be implemented alone or in any suitable combination. Accordingly, the embodiments are not to be limited except in accordance with the appended claims and their equivalents. Furthermore, various modifications and changes may be made within the scope of the appended claims.

Furthermore, in describing representative embodiments, the specification may have presented a method and/or process as a particular sequence of steps. However, to the extent the method or process is not dependent on the specific order of steps described herein, the method or process should not be limited to the specific order of steps described. Other sequences of steps are also possible, as will be appreciated by those of ordinary skill in the art. Therefore, the specific order of the steps set forth in the specification should not be construed as limitations on the claims. In addition, claims for the method and/or process should not be limited to performing their steps in the order written, those skilled in the art can easily understand that these orders can be changed and still remain within the spirit and scope of the embodiments of the present application Inside.

Those of ordinary skill in the art can understand that all or some of the steps in the methods disclosed above, the functional modules/units in the system, and the device can be implemented as software, firmware, hardware, and an appropriate combination thereof. In a hardware implementation, the division between functional modules/units mentioned in the above description does not necessarily correspond to the division of physical components; for example, one physical component may have multiple functions, or one function or step may be composed of several physical components. Components cooperate to execute. Some or all of the components may be implemented as software executed by a processor, such as a digital signal processor or microprocessor, or as hardware, or as an integrated circuit, such as an application specific integrated circuit. Such software may be distributed on computer readable media, which may include computer storage media (or non-transitory media) and communication media (or transitory media). As known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile media implemented in any method or technology for storage of information, such as computer readable instructions, data structures, program modules, or other data. permanent, removable and non-removable media. Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disk (DVD) or other optical disk storage, magnetic cartridges, tape, magnetic disk storage or other magnetic storage devices, or can Any other medium used to store desired information and which can be accessed by a computer. In addition, as is well known to those of ordinary skill in the art, communication media typically embodies computer readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media .

Claims (14)

1. A method for obtaining local services, characterized in that it is applied to user equipment, and the method comprises: After the user equipment accesses the Internet Protocol Version 6 IPv6 network, determine whether a router advertisement message is received, wherein the router advertisement message carries a uniform resource identifier URI used to indicate a local service entry; If the router advertisement message is not received, obtain a link-local address corresponding to the target local service, where service description information corresponding to the target local service is embedded in the link-local address; Obtain the target local service based on the link-local address. 2. The method according to claim 1, wherein said acquiring the link-local address corresponding to the target local service comprises: Obtaining the IPv6 address corresponding to the user equipment and the service description information corresponding to the target local service, wherein the service description information includes: a service identifier and a communication protocol; Embedding the service description information into the last 64 bits of the IPv6 address to generate the link-local address. 3. The method according to claim 2, wherein said embedding said service description information into the last 64 bits of said IPv6 address to generate said link-local address comprises: Encoding the service description information to obtain the interface identifier of the link-local address; Splicing the subnet prefix in the IPv6 address with the interface identifier of the link-local address to generate the link-local address. 4. The method according to claim 3, wherein the encoding the service description information to obtain the interface identifier of the link-local address comprises: Encoding the service identifier to obtain 24-bit coded information corresponding to the service identifier; Encoding the communication protocol to obtain 24-bit encoding information corresponding to the communication protocol; The 24-bit code information corresponding to the service identifier, the 24-bit code information corresponding to the communication protocol, and the preset 16-bit code information are spliced to obtain the interface identifier of the link-local address. 5. The method according to claim 2, wherein the obtaining the target local service based on the link-local address comprises: Accessing the link-local address through the communication protocol to obtain the target local service corresponding to the service identifier. 6. The method according to claim 1, wherein after said determining whether a router advertisement message is received, said method further comprises: If the router advertisement message is received, analyze the router advertisement message to obtain the URI; based on the URI, accessing a local service home page for providing local services; The target local service is obtained from the local service homepage. 7. The method according to claim 6, wherein the local service home page includes: local domain name system DNS service, local network time protocol NTP service, local network authentication service, local network fault report service, local geographical information One or more of local emergency communication services, local business services, and local network charging services. 8. A method for generating a link-local address, characterized in that it is applied to a user equipment, the method comprising: After the user equipment accesses the Internet Protocol Version 6 IPv6 network, obtain the IPv6 address corresponding to the user equipment and the service description information corresponding to the target local service, wherein the service description information includes: a service identifier and a communication protocol; Embedding the service description information into the last 64 bits of the IPv6 address to generate the link-local address according to any one of claims 1 to 5. 9. The method according to claim 8, wherein the service description information is embedded into the last 64 bits of the IPv6 address to generate the link according to any one of claims 1 to 5 Local address, including: Encoding the service description information to obtain the interface identifier of the link-local address; Splicing the subnet prefix in the IPv6 address with the interface identifier of the link-local address to generate the link-local address. 10. The method according to claim 9, wherein the encoding the service description information to obtain the interface identifier of the link-local address comprises: Encoding the service identifier to obtain 24-bit coded information corresponding to the service identifier; Encoding the communication protocol to obtain 24-bit encoding information corresponding to the communication protocol; The 24-bit code information corresponding to the service identifier, the 24-bit code information corresponding to the communication protocol, and the preset 16-bit code information are spliced to obtain the interface identifier of the link-local address. 11. An apparatus for obtaining local services, characterized in that it is applied to user equipment, and the apparatus includes: A determining unit, configured to determine whether a router advertisement message is received after the user equipment accesses the Internet Protocol Version 6 IPv6 network, wherein the router advertisement message carries a uniform resource identifier for indicating a local service entry character URI; A first acquiring unit, configured to acquire a link-local address corresponding to the target local service if the determining unit determines that the router advertisement message has not been received, wherein the link-local address is embedded with a link-local address corresponding to the target local service Service description information; The second acquiring unit is configured to acquire the target local service based on the link-local address. 12. A device for generating a link-local address, which is applied to a user equipment, the device comprising: An obtaining unit, configured to obtain the IPv6 address corresponding to the user equipment and the service description information corresponding to the target local service after the user equipment accesses the Internet Protocol Version 6 IPv6 network, wherein the service description information includes: service identification and communication protocols; A generating unit, configured to embed the service description information into the last 64 bits of the IPv6 address to generate the link-local address according to any one of claims 1 to 5. 13. A computer-readable storage medium, characterized in that the storage medium includes a stored program, wherein when the program is running, the user equipment where the storage medium is located is controlled to execute the program described in any one of claims 1 to 7. Steps in the method for obtaining a local service described above or the method for generating a link-local address according to any one of claims 8 to 10. 14. A user equipment, characterized in that the user equipment comprises: at least one processor; and at least one memory and bus connected to the processor; Wherein, the processor and the memory complete mutual communication through the bus; the processor is used to call the program instructions in the memory to execute the method of obtaining local services according to any one of claims 1 to 7 The method or the steps of the method for generating a link-local address as claimed in any one of claims 8 to 10.