CN110601984B - Method and device for acquiring local service and generating link local address - Google Patents

Abstract

The embodiments of the present application provide a method and apparatus for acquiring local services and generating a link-local address, which are applied to user equipment. The method includes: after the user equipment accesses an IPv6 network, determining 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 the link-local address corresponding to the target local service, wherein the The link local address is embedded with service description information corresponding to the target local service; the target local service is acquired based on the link local address. In this way, by obtaining the local service through the link-local address, it is possible to obtain the required target local service only by accessing the IPv6 network without relying on other servers such as the DNS server and the DHCP server.

Description

A method and device for obtaining local service and generating link local address

technical field

The present application relates to the field of Internet technologies, and in particular, to a method and apparatus for acquiring 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. changes depending on the location.

At present, local services are mainly obtained through DHCP (Dynamic Host Configuration Protocol, Dynamic Host Configuration Protocol) or DNS (Domain Name System, Domain Name System). However, since these implementations depend on DNS server, DHCP server and other services, The architecture is complex, which is not conducive to deployment, and makes the user equipment less supported. It often occurs that the user equipment cannot obtain the corresponding local service after connecting to the IPv6 (Internet Protocol Version 6, Internet Protocol Version 6) network in a certain place. question.

SUMMARY OF THE INVENTION

In view of this, the embodiments of the present application provide a method and device for obtaining a local service and generating a link-local address, and obtaining a local service through a link-local address can realize that it does not depend on other servers such as a DNS server and a DHCP server, and only You need to access the IPv6 network to obtain the required target local services.

The embodiments of the present application mainly provide the following technical solutions:

In a first aspect, an embodiment of the present application provides a method for obtaining a local service, which is applied to a user equipment. The method includes: after the user equipment accesses an IPv6 network, determining 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 the link-local address corresponding to the target local service, wherein the link-local The address is embedded with service description information corresponding to the target local service; based on the link local address, the target local service is acquired.

In a second aspect, an embodiment of the present application provides a method for generating a link local address, which is applied to a user equipment. The method includes: after the user equipment accesses an IPv6 network, obtaining an IPv6 address corresponding to the user equipment 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 in the last 64 bits of the IPv6 address, and the above-mentioned obtaining local service is generated. The link-local address as described in the method.

In a third aspect, an embodiment of the present application provides an apparatus for obtaining a local service, which is applied to a user equipment. The apparatus includes: a determining unit, configured to determine after the user equipment accesses the Internet Protocol Version 6 IPv6 network. 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 used for if the determining unit determines that the router has not been received a notification message to obtain 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; a second obtaining unit is configured to, based on the link-local address, Get the target local service.

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

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

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

According to the method and apparatus for obtaining local services and generating link-local addresses provided by the embodiments of the present application, after the user equipment accesses the IPv6 network, the user equipment determines whether to receive a router advertisement message, 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.

Other features and advantages of the present application will be set forth in the description which follows, and in part will be apparent from the description, or may be learned by practice of the present application. Other advantages of the present application may be realized and attained by the means described in the specification, claims and drawings.

Description of drawings

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

FIG. 1 is a schematic flowchart 1 of a method for obtaining a local service in an embodiment of the present application;

2 is a schematic diagram 1 of a link-local address in an embodiment of the present application;

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

4 is a second schematic flowchart of a method for obtaining a local service in an embodiment of the present application;

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

6 is a schematic structural diagram of an apparatus for obtaining a local service in an embodiment of the present application;

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 with reference to the accompanying drawings in the embodiments of the present application.

The embodiment of the present application provides a method for obtaining a local service. In practical applications, the method for obtaining local services is applied to user equipment. FIG. 1 is a schematic flowchart 1 of a method for obtaining a local service in an embodiment of the present application. Referring to FIG. 1 , the method for obtaining a local service 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 the uniform resource identifier URI used to indicate the local service entry.

Specifically, if the user equipment determines that it has not received the router advertisement message advertised by the router, S102 to S103 are executed.

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

The link-local address is embedded with service description information corresponding to the target local service.

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

In practical applications, the service identifier is an identifier used to characterize the local service. Specifically, the service identifier can be a character string identifier, or a digital identifier, and of course, can also be other identifiers that can uniquely identify a local service. Here, the embodiments of the present application do 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, parsing protocol, etc. that the user equipment needs to follow to access the local service.

Exemplarily, taking the fire alarm service in the local emergency communication service as an example, it is assumed that the WWW (WorldWide Web, World Wide Web) web page is used to realize the fire alarm service, then 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) technology and HTTP (HyperText Transfer Protocol, hypertext transfer protocol) technology to access the WWW service on port 80, and the content obtained 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 used for network routing and the subnet prefix used for intra-subnet addressing. The last 64-bit interface identifier (Interface Id, IID) is composed. Generally speaking, the subnet prefix is a layer-by-layer method of the user equipment through the operator, the Regional Internet Registry (RIR), and the Internet Assigned Numbers Authority (IANA) during IPv6 networking. 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 generation method, or by a DHCP server in a stateful generation method. Then, when facing the IPv6 network, in order to avoid 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 generation mode to generate the 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 by taking a specific example.

In another embodiment of the present application, the foregoing 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: a service identifier and a communication protocol;

Specifically, after the user equipment accesses 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 may input the service description information corresponding to the target local service to the user equipment through an input operation, or the user may perform a selection operation on the user equipment to select the corresponding target local service In this way, the user equipment can obtain the service description information corresponding to the target local service that the user needs to acquire 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: Embed 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 a 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 and 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 identifier of the link-local address from various existing interface identifiers, the first 48 bits of the last 64 bits of the link-local address can be set to be generated based on the 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 according to 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: the service identifier and the communication protocol, then, taking the service identifier and the communication protocol encoded as 24-bit encoded information as an example, thus, in the specific implementation process, the above-mentioned service description information is encoded to obtain the chain. The step of identifying the interface identification of the road local address may include: encoding the service identification to obtain the 24-bit encoded information corresponding to the service identification; encoding the communication protocol to obtain the 24-bit encoded information corresponding to the communication protocol; The corresponding 24-bit encoded information, the 24-bit encoded information corresponding to the communication protocol, and the preset 16-bit encoded information are spliced to obtain the interface identifier of the link local address.

For example, as shown in 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 inventor of the present application found in the specific implementation process that the pre-set interface identifier can be used. The 16-bit encoded information is all set to 0, then, the first 24 bits of the interface identifier of the generated link-local address are the 24-bit encoded information corresponding to the service identifier, and the middle 24 of the interface identifier of the generated link-local address. The bit is the 24-bit encoded 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 encoded information to 0, it is also possible to set the service identifier by the service identifier. Among the 6 bytes in the first 48 bits composed of the corresponding 24-bit encoded information and the 24-bit encoded information corresponding to the communication protocol, any byte cannot be 0xFF, and the first byte is not 0, so , the interface identifier of the obtained link-local address can be distinguished from most of the interface identifier generation schemes with special semantics. For example, the inventor of the present application found in the process of implementing the embodiments of the present application that in the IVI address generation scheme, there is no situation where the last 16 bits of the interface identifier are 0. Here, IVI is an SIIT (Stateless IP/ICMP) based solution. Translation, stateless IP/ICMP translation) protocol conversion technology, which can solve the network layer translation of IPv6 network and IPv4 network data packets; and in the lightweight 4over6 (IPv4 overIPv6) scheme, 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 manually specified interface identifiers use the last 16 bits as the IPv4 address This reserved address space does not conflict with anycast addresses within the subnet. Therefore, as verified by the inventor of the present application in the specific implementation process, the interface identifier of the link-local address in the embodiment of the present application can be well distinguished from the existing various interface identifiers, and then based on the link-local address Obtaining local services can be implemented 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 encoding information corresponding to the service identifier, when the service identifier is a string identifier, the string encoding can be used. The service identifier is encoded by the method; when the service identifier is a digital identifier, the service identifier can also be encoded by the digital encoding method. Certainly, 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 of all, how to encode the service identifier through the string encoding method is introduced with a specific example.

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

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

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

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 encoding information (that is, 3-byte encoding information) corresponding to the service identifier of , is 0x000001. It should be noted that the above numbers are only used for examples, and are not specifically limited in the embodiments of the present application.

In practical applications, in order to obtain the 24-bit encoded information corresponding to the communication protocol of the local service, the communication protocol can be encoded by the string encoding method, or the communication protocol can be encoded by the digital encoding method. Of course, you can also The communication protocol is encoded for other encoding manners, which is 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 webpage, the communication protocol of the fire alarm service can be defined as "TCP_WWW_XML". In practical applications , because the character string contained in the communication protocol is often relatively long, in order to facilitate the encoding, the communication protocol can be encoded by using a digital encoding method. Exemplarily, the communication protocol can be encoded in an integral manner, for example, "TCP_WWW_XML" can be directly encoded as 1, then the 24-bit encoded information (3-byte encoded information) corresponding to the encoded communication protocol can be 0x000001, or The communication protocol is encoded in a separate encoding method, that is, the three parts of the protocol, the port, and the parsing format can be encoded separately. The 24-bit encoded information (3-byte encoded information) corresponding to the latter 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, based on the above table 1. The coding table shown in the code table encodes the service ID of the fire alarm service by string coding, and the 24-bit coding information (that is, 3-byte coding information) corresponding to the service ID of the fire alarm service can be obtained as 0x454740; By coding the communication protocol of the fire alarm service, the 24-bit encoded information (that is, the 3-byte encoded information) corresponding to the communication protocol of the fire alarm service can be obtained as 0x000001, then the chain corresponding to the local fire alarm service of the fire alarm through WWW The local address of the road can be the address of fe80::4547:4000:1:0. Then, when the user needs to perform a fire alarm, he can access the 80 port of the local address of the link through the user equipment, and use the WWW form to directly alarm.

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

In practical applications, the target local service can be a local DNS service, a local NTP (Network Time Protocol) service, a local network authentication service, a local network fault report service, a local geographic information service, a local emergency communication service, and a local business service. , one or more of local network charging services. Of course, other types of services, such as local life information services, etc., may also be used, 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 network authentication server address; 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, latitude and altitude information of the current geographic location of the user equipment; the local emergency communication service can be used to provide emergency numbers such as fire alarm numbers, alarm numbers, and emergency rescue numbers. Communication number; 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. 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 to obtain the corresponding local service represented 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, domain name resolution within a local area network, etc., before network authentication is performed.

So far, the process of acquiring 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 embodiments of the present application, after the user equipment accesses the IPv6 network, the user equipment can determine whether to receive a router advertisement 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 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, the embodiments of the present application provide a method for acquiring a local service. It can be applied to the following scenarios: a URI for indicating the local service entry is added to 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. In this way, the user equipment can obtain the required local service by accessing the URI.

FIG. 4 is a second schematic flowchart of a method for acquiring a local service in an embodiment of the present application. Referring to FIG. 4 , the method for acquiring a local service may include:

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

The router advertisement message carries a Uniform Resource Identifier URI for indicating a local service entry; here, the URI is a local service entry URI, which includes various local configuration, usage, information and other related content.

In practical applications, when deploying an IPv6 network, a URI for indicating the local service entry can be added to the router advertisement in advance. Since the router will periodically send router advertisement packets at preset time intervals, 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 router advertisement 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 in units of 8 bytes, and the insufficient part is padded with 0.

It should be noted that, in this embodiment of the present application, an 8-byte option is used in the router advertisement message to provide a URI for indicating a local service entry, and then the local service home page corresponding to the URI provides each local service. service, rather than using a 1-byte option directly in the router advertisement message to provide a local service, so that the URI used to indicate the local service entry does not need to be changed frequently. Setting, it is very convenient to add, delete, and modify the supported local services, and further, when more local services need to be supported, the scalability is high.

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

S401: Parse the router advertisement message to obtain a URI;

As an example, in a non-emergency situation, 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 retrieve the router advertisement message from the router advertisement message. Parse out the URI.

S402: Based on the URI, access the home page 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 homepage 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. Certainly, the local service homepage may also provide other local services, which are not specifically limited in the embodiments of the present application.

As an example, the local service homepage can be displayed as a browser homepage, and after the user equipment accesses the URI, the user equipment can display the local service homepage to the user, wherein the local service homepage can display multiple local services, and the user can The operation is performed on the local service homepage, and 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 content that the method for obtaining a local service provided by the embodiment of the present application, by encoding the service identifier and the communication protocol into the link local address, can facilitate the user equipment to be able to use the DNS, DHCP, etc. In the case of infrastructures such as router advertisements and router advertisements, local services that can be realized without accessing the Internet, such as emergency communication services, alarm services, etc.; The URI used to indicate the local service entry to get more detailed local services.

Based on the same inventive concept, the embodiments of the present application provide 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 characterize a local service. The communication protocol refers to the communication, entry port, and resolution protocol that needs to be followed to access local services.

S502: Embed the 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 foregoing 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 the link-local address.

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

It should be noted that the link-local addresses in the embodiments of this application are consistent with those in one or more of the above embodiments. For technical details not disclosed in the embodiments of this application, please refer to the above-mentioned one or more embodiments It should be understood from the description of the link-local address in the middle of the present application, which is not repeated in this embodiment of the present application.

It can be seen from the above that, in the method for generating a link local address provided by the embodiments of the present application, after the user equipment accesses the IPv6 network, the IPv6 address corresponding to the user equipment and the service description information corresponding to the target local service are obtained, wherein the service description information Including: service identification and communication protocol, and then embedding the service description information into the last 64 bits of the IPv6 address to generate a link-local address. In this way, by encoding the descriptive information corresponding to the target local service into the link local address, it is possible to realize that it does not depend on other servers such as DNS server and DHCP server, and only needs to access the IPv6 network to obtain the link local address based on the 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 acquiring a local service. In practical applications, the apparatus for obtaining local services can be applied to user equipment. FIG. 6 is a schematic structural diagram of an apparatus for obtaining a local service according to an embodiment of the present application. Referring to FIG. 6 , the apparatus 60 may include: a determining unit 601 for, after the user equipment accesses the Internet Protocol Version 6 IPv6 network, Determining 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, if the determining unit determines that the router advertisement message has not been received, The link-local address corresponding to the target local service is obtained, wherein the link-local address is embedded with service description information corresponding to the target local service; 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 in the In the last 64 bits of the IPv6 address, a link-local address is generated.

In the embodiment of the present application, the first obtaining 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 Link-local address.

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

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

In other embodiments of the present application, the above-mentioned apparatus for obtaining a local service may further include: a parsing unit, configured to parse the router advertisement packet if the determination unit does receive the router advertisement packet, and obtain the URI; the access unit, which uses based on the URI, to access the local service home page for providing local services; the third obtaining unit is used to obtain the target local service from the local service home page.

In the embodiment of the present application, the above-mentioned local service homepage 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 One or more of commercial services and local network charging services.

Based on the same inventive concept, as an implementation of the above method, an embodiment of the present application provides an apparatus for generating a link-local address. In practical applications, the apparatus for generating a link-local address can be applied to 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 the Internet Protocol Version 6 IPv6 network at the user equipment After obtaining the IPv6 address corresponding to the user equipment and the service description information corresponding to the target local service, the service description information includes: a service identifier and a communication protocol; a generating unit 702 is used to embed the service description information into the last 64 bits of the IPv6 address , the link-local address in one or more of the above embodiments is generated.

In the embodiment of the present application, a 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 the link local address.

In the embodiment of the present application, the generating unit is used to encode the service identifier to obtain 24-bit encoded information corresponding to the service identifier; to encode the communication protocol to obtain the 24-bit encoded information corresponding to the communication protocol; The corresponding 24-bit encoded information, the 24-bit encoded information corresponding to the communication protocol, and the preset 16-bit encoded 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 configured to call program instructions in the memory 82 to execute the steps of the method for obtaining a local service in one or more of the foregoing 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 foregoing embodiments are executed when the program is running.

The above-mentioned processor can be a central processing unit (Central Processing Unit, CPU), a microprocessor (MicroProcessor Unit, MPU), a digital signal processor (Digital Signal Processor, DSP), or a field programmable gate array (Field Programmable Gate Array, FPGA) ) and so on. The memory may include non-persistent memory in computer readable media, random access memory (RAM) and/or non-volatile memory, such as read only memory (ROM) or flash memory (Flash RAM). ), the memory includes at least one memory chip.

It should be noted that, in the embodiments of the present 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 such understanding, the technical solutions of the embodiments of the present application can be embodied in the form of software products in essence or in the parts that make contributions to the prior art. The computer software products are stored in a storage medium and include several instructions for A user equipment (which may be a personal computer, a server, or a network device, etc.) is caused to execute all or part of the methods of 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, where the computer-readable storage medium includes a stored program, wherein, when the program runs, the user equipment where the storage medium is located is controlled to execute one or more of the above-mentioned storage medium. The steps of the method for obtaining a local service in one embodiment.

It should be pointed out here that the descriptions of the above embodiments of the apparatus, user equipment or computer-readable storage medium are similar to the descriptions of the above method embodiments, and have similar beneficial effects to the method embodiments. 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.

This application describes a number of embodiments, but the description is exemplary rather than restrictive, and it will be apparent to those of ordinary skill in the art that within the scope of the embodiments described in this application can be There are many more examples 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. Unless expressly limited, any feature or element of any embodiment may be used in combination with, or may be substituted for, any other feature or element of any other embodiment.

This application includes and contemplates combinations with features and elements known to those of ordinary skill in the art. The embodiments, features and elements that have been disclosed in this application can also be combined with any conventional features or elements to form unique inventive solutions as defined by the claims. Any features or elements of any embodiment may also be combined with features or elements from other inventive arrangements to form another unique inventive arrangement defined by the claims. Accordingly, it should be understood that any of the features shown and/or discussed in this application may 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 methods and/or processes as a particular sequence of steps. However, to the extent that the method or process does not depend 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 possible, as will be understood by those of ordinary skill in the art. Therefore, the specific order of steps set forth in the specification should not be construed as limitations on the claims. Furthermore, the claims directed to the method and/or process should not be limited to performing their steps in the order written, as those skilled in the art will readily appreciate that these orders may be varied 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, functional modules/units in the systems, and devices can be implemented as software, firmware, hardware, and appropriate combinations 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 execute cooperatively. 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 is known to those of ordinary skill in the art, the term computer storage media includes both volatile and nonvolatile implemented in any method or technology for storage of information such as computer readable instructions, data structures, program modules or other data flexible, removable and non-removable media. Computer storage media include, but are 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, magnetic tape, magnetic disk storage or other magnetic storage devices, or may Any other medium used to store desired information and which can be accessed by a computer. In addition, 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 can include any information delivery media, as is well known to those of ordinary skill in the art .

Claims (13)

1. A method for acquiring local services, applied to a user equipment, the method comprising:

after the user equipment accesses an IPv6 network of version 6 of the Internet protocol, determining whether a router advertisement message is received, wherein the router advertisement message carries a Uniform Resource Identifier (URI) for indicating a local service entrance;

if the router advertisement message is not received, acquiring a link local address corresponding to a target local service, wherein service description information corresponding to the target local service is embedded in the link local address; acquiring the target local service based on the link local address;

wherein the service description information includes: a service identifier for representing a local service and a communication protocol for indicating how to access the local service; the obtaining of the link local address corresponding to the target local service includes: obtaining the service description information and an IPv6 address corresponding to the user equipment; and embedding the service description information into the last 64 bits of the IPv6 address in a stateless manner to generate the link local address.

2. The method of claim 1, wherein the embedding the service description information into the last 64 bits of the IPv6 address to generate the link-local address comprises:

encoding the service description information to obtain an interface identifier of the link local address;

and splicing the subnet prefix in the IPv6 address with the interface identifier of the link local address to generate the link local address.

3. The method of claim 2, wherein said encoding the service description information to obtain the interface identifier of the link local address comprises:

coding the service identification to obtain 24 bits of coding information corresponding to the service identification;

coding the communication protocol to obtain 24 bits of coding information corresponding to the communication protocol;

and splicing the 24-bit coding information corresponding to the service identifier, the 24-bit coding information corresponding to the communication protocol and the preset 16-bit coding information to obtain the interface identifier of the link local address.

4. The method of claim 1, wherein obtaining the target local service based on the link local address comprises:

and accessing the link local address through the communication protocol to acquire the target local service corresponding to the service identifier.

5. The method of claim 1, wherein after said determining whether a router advertisement message is received, the method further comprises:

if the router advertisement message is received, analyzing the router advertisement message to obtain the URI;

accessing a home service homepage for providing a home service based on the URI;

and acquiring the target local service from the local service homepage.

6. The method of claim 5, wherein the local service home page comprises: one or more of a local Domain Name System (DNS) service, a local Network Time Protocol (NTP) service, a local network authentication service, a local network troubleshooting service, a local geographic information service, a local emergency communication service, a local business service, a local network charging service.

7. A method for generating a link local address, applied to a user equipment, the method comprising:

after the user equipment accesses an internet protocol version 6 IPv6 network, obtaining an IPv6 address corresponding to the user equipment and service description information corresponding to a target local service, wherein the service description information includes: a service identifier for representing a local service and a communication protocol for indicating how to access the local service;

and embedding the service description information into the last 64 bits of the IPv6 address in a stateless manner, and generating a link local address corresponding to the target local service.

8. The method of claim 7, wherein the embedding the service description information into the last 64 bits of the IPv6 address, and generating a link local address corresponding to the target local service, includes:

encoding the service description information to obtain an interface identifier of the link local address;

and splicing the subnet prefix in the IPv6 address with the interface identifier of the link local address to generate the link local address.

9. The method of claim 8, wherein said encoding the service description information to obtain the interface identifier of the link local address comprises:

coding the service identification to obtain 24 bits of coding information corresponding to the service identification;

coding the communication protocol to obtain 24 bits of coding information corresponding to the communication protocol;

and splicing the 24-bit coding information corresponding to the service identifier, the 24-bit coding information corresponding to the communication protocol and the preset 16-bit coding information to obtain the interface identifier of the link local address.

10. An apparatus for acquiring local services, applied to a user equipment, the apparatus comprising:

a determining unit, configured to determine whether a router advertisement message is received after the user equipment accesses an internet protocol version 6 IPv6 network, where the router advertisement message carries a uniform resource identifier URI used for indicating a local service entry;

a first obtaining unit, configured to obtain a link local address corresponding to a target local service if the determining unit determines that the router advertisement packet is not received, where service description information corresponding to the target local service is embedded in the link local address; the service description information includes: a service identifier for representing a local service and a communication protocol for indicating how to access the local service; the obtaining of the link local address corresponding to the target local service includes: obtaining the service description information and an IPv6 address corresponding to the user equipment; embedding the service description information into the last 64 bits of the IPv6 address in a stateless manner to generate the link local address;

a second obtaining unit, configured to obtain the target local service based on the link local address.

11. An apparatus for generating a link local address, applied to a user equipment, the apparatus comprising:

an obtaining unit, configured to obtain, after the ue accesses an IPv6 network of version 6 of an internet protocol, an IPv6 address corresponding to the ue and service description information corresponding to a target local service, where the service description information includes: a service identifier for representing a local service and a communication protocol for indicating how to access the local service;

a generating unit, configured to embed, in a stateless manner, the service description information into the last 64 bits of the IPv6 address, and generate a link local address corresponding to the target local service.

12. A computer-readable storage medium, characterized in that the storage medium comprises a stored program, wherein the program, when executed, controls a user equipment on which the storage medium is located to execute the steps of the method for acquiring local service according to any one of claims 1 to 6 or the method for generating link local address according to any one of claims 7 to 9.

13. A user equipment, the user equipment comprising:

at least one processor;

and at least one memory, bus connected with the processor;

the processor and the memory complete mutual communication through the bus; the processor is configured to invoke program instructions in the memory to perform the steps of the method of acquiring local services according to any one of claims 1 to 6 or the method of generating link local addresses according to any one of claims 7 to 9.

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