WO2019114244A1

WO2019114244A1 - Method and device for converting address character string having short name into ipv6 address

Info

Publication number: WO2019114244A1
Application number: PCT/CN2018/092767
Authority: WO
Inventors: 张千里; 王继龙; 李星
Original assignee: 清华大学
Priority date: 2017-12-13
Filing date: 2018-06-26
Publication date: 2019-06-20
Also published as: CN108093095B; CN108093095A

Abstract

The invention discloses a method and a device for converting an address character string having a short name into an IPv6 address. The method solves the problem of difficulties in memorizing and expressing an IPv6 address by means of mapping an address character string having a short name to the IPv6 address, thereby realizing assignment of a service identifier within a subnetwork and acquisition of public information in a subnetwork from an external network. Mapping between a short name and an IPv6 address is achieved without relying on a third-party server, thus preventing the additional security risks, service latency, and additional maintenance overhead caused by introducing a third-party server, such as a DNS. Unlike a DNS service which requires global uniqueness, the invention only requires a short name to be unique in an IPv6 subnetwork, thereby enabling a partially public service to be feasible.

Description

Method and apparatus for converting an address string having a short name into an IPv6 address

Cross-reference to related applications

The present application claims priority from the Chinese Patent Application No. "201711332327.9" filed on Dec. 13, 2017 by Tsinghua University, entitled "Method and Apparatus for Converting an Address String with a Short Name to an IPv6 Address".

Technical field

The present invention relates to the field of computer networks, and in particular, to a method and apparatus for converting an address string having a short name into an IPv6 address.

Background technique

Every node on the Internet relies on IP addresses to distinguish and connect with each other. IP addresses become the basis for the entire Internet interconnection and identity differentiation. With the continuous expansion of the Internet, IPv4 addresses are gradually being consumed, and IPv6-based next-generation Internet is being used more and more widely. Compared with IPv4 addresses, the IPv6 address space is much larger, which brings about two aspects. First, the IPv6 address space is huge, which makes it difficult to memorize and express these addresses, especially network operation managers. It is necessary to directly face the address itself, so how to name and memorize these huge addresses becomes more difficult; in addition, in the IPv6 address space, generally, the first 64 bits are specified by the operator, and the last 64 bits can be determined by the user system itself. Specified, generated by stateless mode, so how to plan the last 64 bits makes some meaningful extra functions become an important issue.

In terms of the expression of IPv6 address, in RFC5952, several suggestions for textual expression of IPv6 address are proposed. The implementation of these suggestions does not change the problem that IPv6 address is difficult to remember. For example, the IPv6 address generated by the general operating system is The following form: 2402: f000: 6: 1001: 896: cdfe: e07e: 88da, which is very inconvenient to remember.

Therefore, how to solve the problem that IPv6 addresses are difficult to memorize and express has become a technical problem to be solved urgently.

Summary of the invention

The object of the present invention is to solve at least one of the above technical problems to some extent.

Therefore, the first object of the present invention is to provide a method for converting an address string with a short name into an IPv6 address, and to solve the problem that the IPv6 address is difficult to memorize and express through the mapping of an address string with a short name to an IPv6 address. Further, the specified service identifier and the external network to the subnet's public information acquisition within the subnet can be realized; the mapping between the short name and the IPv6 address can be realized without relying on the third party server, and the third party server is avoided due to the like DNS. The additional security risks, service delays, and additional maintenance costs are incurred; the short names need only be unique within an IPv6 subnet, and there is no need to guarantee global uniqueness like the DNS service, which makes local public services possible.

To this end, a second object of the present invention is to provide a device for converting an address string having a short name into an IPv6 address.

In order to achieve the above object, a method for converting an address string with a short name into an IPv6 address according to the first aspect of the present invention includes:

Get an address string with a short name;

Determining whether a preset delimiter exists in the address string having the short name;

If yes, determining a front partial address string and a latter partial address string according to the preset separator, wherein the front partial address string is in front of the preset splitter in the address string having the short name a partial address string, the latter part of the address string being a partial address string of the address string having the short name after the preset separator;

Converting the previous partial address string into the previous partial IPv6 address according to the RFC 5952 specification, and converting the latter partial address string into the latter partial IPv6 address according to a preset encoding rule;

The first partial IPv6 address and the latter partial IPv6 address are connected to form an IPv6 address corresponding to the short-named address string.

In the method as described above, the determining the front partial address string and the latter partial address string according to the preset separator includes:

If the preset delimiter is not the first character and the last character in the address string having the short name, the first partial address string is in the address string having the short name in the preset a partial address string preceding the separator, the latter partial address string being a partial address string following the preset separator in the address string having the short name;

If the preset delimiter is the first character in the address string having the short name, and obtaining the subnet prefix of the host to which the address string having the short name belongs, the former partial address string is the a subnet prefix, the latter part of the address string is a partial address string of the address string having a short name after the preset separator;

If the preset delimiter is the last character in the address string having the short name, the front part address string is the part of the address string having the short name that precedes the preset delimiter The address string, the latter part of the address string is an empty string.

In the method as described above, the first part of the IPv6 address and the latter part of the IPv6 address are connected to form an IPv6 address corresponding to the address string having the short name, including:

Obfuscating the latter part of the IPv6 address by using an obfuscation algorithm;

And connecting the obtained partial IPv6 address to the obtained IPv6 address after the obfuscated processing to form an IPv6 address corresponding to the address string having the short name.

In the method as described above, the preset encoding rule is one of the following encoding rules: encoding a 1-character encoding rule with 6 bits, and encoding a 4-character encoding rule with 21 bits.

The method as described above further includes:

If not, the address string with the short name is converted according to the RFC 5952 specification to obtain the IPv6 address corresponding to the address string with the short name.

In order to achieve the above object, an apparatus for converting a short-named address string into an IPv6 address according to the second aspect of the present invention includes:

An obtaining module for obtaining an address string having a short name;

a determining module, configured to determine whether a preset delimiter exists in the address string with the short name, and if yes, triggering the determining module;

a determining module, configured to determine a front partial address string and a latter partial address string according to the preset separator, wherein the front partial address string is the preset splitter in the address string having the short name The previous part of the address string, the latter part of the address string is the partial address string of the address string having the short name after the preset separator;

a conversion module, configured to convert a front partial address string into a front partial IPv6 address according to the RFC 5952 specification, and convert the latter partial address string into a latter partial IPv6 address according to a preset encoding rule;

And a generating module, configured to connect the foregoing partial IPv6 address and the latter partial IPv6 address to generate an IPv6 address corresponding to the address string with a short name.

The device as described above, the determining module is specifically configured to:

The device as described above, the generating module is specifically configured to:

The preceding partial IPv6 address and the post-partial IPv6 address obtained by the obfuscation are connected to form an IPv6 address corresponding to the address string having the short name.

In the apparatus as described above, the preset encoding rule is one of the following encoding rules: encoding a 1-character encoding rule with 6 bits, and encoding a 4-character encoding rule with 21 bits.

The device as described above, wherein the conversion module is further configured to: when the determining module determines that there is no preset delimiter in the address string having the short name, the address having the short name according to the RFC 5952 specification The string is converted to obtain the IPv6 address corresponding to the address string with the short name.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a schematic flowchart of a method for converting an address string having a short name into an IPv6 address according to an embodiment of the present invention;

2 is an exemplary encoding rule for encoding 1 character with 6 bits;

3 is an exemplary table of mapping relationship between characters and values;

FIG. 4 is a schematic structural diagram of an apparatus for converting an address string having a short name into an IPv6 address according to an embodiment of the present invention.

Detailed ways

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

A method and apparatus for converting an address string having a short name into an IPv6 address according to an embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a schematic flowchart diagram of a method for converting an address string having a short name into an IPv6 address according to an embodiment of the present invention. The executive body of the method is a device that converts an address string having a short name into an IPv6 address, and the device can be implemented by hardware and/or software.

As shown in FIG. 1, the method for converting an address string having a short name into an IPv6 address provided in this embodiment includes the following steps:

S101. Obtain an address string with a short name.

In this embodiment, the name of the short name is as consistent as possible with the DNS domain name. For example, take the a-z (case insensitive), 0-9, - 37 characters that may be used in the DNS domain name to name the short name. In addition, when the name length is not enough, you can use the "stop character" to fill, that is, you can use a-z (case insensitive), 0-9, -, stop characters a total of 38 characters to name the short name. An IPv6 address is generally composed of two parts, a first partial IPv6 address and a latter partial IPv6 address. The first part of the IPv6 address is the first 64 bits of the IPv6 address, which is also called the subnet prefix. It is usually specified by the operator. The latter part of the IPv6 address is the last 64 bits of the IPv6 address, also known as the interface identifier, which can be specified by the user system itself. In this embodiment, the latter partial IPv6 address can be represented by a short name. In this embodiment, an address string having a short name can be understood as an IPv6 address represented by a short name in the latter part of the IPv6 address.

S102. Determine whether a preset separator exists in the address string with the short name, and perform step S103 or step S106.

In this embodiment, the preset delimiter should not use the string allowed by the DNS. In addition, the special string having the escaping property of SHELL, URL, etc. should be avoided, and the preset delimiter can be selected as ~, {,}, | and other characters.

For example, the address string of short name with ‘2402:f000:6:1001～printer’, the short name is ‘printer’, and the default separator is ‘~’. In general, short names are set after the preset separator.

S103. If yes, determine the front partial address string and the latter partial address string according to the preset separator, and step S104 is performed.

In this embodiment, the front part address string is a partial address string in the address string having the short name in front of the preset separator, and the latter part address string is the address character having the short name. A partial address string in the string that follows the preset separator.

In a possible implementation manner, the specific implementation manner of “determining the first partial address string and the latter partial address string according to the preset separator” is:

If the preset delimiter is not the first character and the last character in the address string having the short name, the first partial address string is in the address string having the short name in the preset A partial address string preceding the separator, the latter partial address string being a partial address string following the preset separator in the address string having the short name.

If the preset delimiter is the first character in the address string having the short name, and obtaining the subnet prefix of the host to which the address string having the short name belongs, the former partial address string is the The subnet prefix, the latter part of the address string is a partial address string of the address string having the short name that follows the preset separator.

For example, the address string of short name with ‘2402:f000:6:1001～printer’ is used. The former part of the address string is ‘2402:f000:6:1001’, and the last part of the address string is ‘printer’.

For example, an address string with a short name of ‘~printer’ is used. The former part of the address string is the 'subnet prefix' of the host, and the latter part of the address string is 'printer'. When an address string such as ‘~printer’ appears, it means that the IPv6 address indicated by the address string is in the subnet where the machine is located, that is, the same as the subnet prefix contained in the machine.

For example, the address string of short name with ‘2402:f000:6:1001~’, the former part of the address string is ‘2402:f000:6:1001’, and the last part of the address string is an empty string. In the subsequent conversion, the latter part of the IPv6 address is composed of a stop character.

S104. Convert the previous partial address string into the previous partial IPv6 address according to the RFC 5952 specification, and convert the latter partial address string into the latter partial IPv6 address according to the preset encoding rule, and perform step S105.

S105. Connect the first partial IPv6 address and the latter partial IPv6 address to generate an IPv6 address corresponding to the short-named address string.

Specifically, the RFC (Request For Comments) 5952 specification specifies standards for IPv6 addresses. The standard specifies that a complete 128-bit IPv6 address is divided into 8 segments, each segment of 4 characters, such as 2001:0410:0000:1234:FB00:1400:5000:45FF. For ease of expression, RFC 5952 specifies that multiple consecutive zero fields can be used with a compression format to omit compression.

For example, 2001:0410:0000:1234:FB00:1400:5000:45FF can be abbreviated as 2001:0410::1234:FB00:1400:5000:45FF, and 0000:0000:0000:0000:0000:0000:0000: 0001 can be abbreviated as ::1. RFC 5952 stipulates that such an omission can only occur once, that is, 3ffe:0000:0000:0000:1010:2a2a:0000:0001 can only be abbreviated as 3ffe:0:0:0:1010:2a2a::1 or 3ffe ::1010:2a2a:0:1, but not abbreviated as 3ffe::1010:2a2a::1. In the present invention, the first part of the address string is used to represent the subnet prefix, and 4 segments are required to represent, for example, 2001:0410:0:1234, with the following: the short part of the address string can be expanded to a maximum of 64 bits. For example, 2001:410:: is expanded to 2001:0410:0000:0000.

Taking the address string of short name with '2402:f000:6:1001~printer' as an example, the former part of the address string '2402:f000:6:1001' is converted to the IPv6 address standard according to the RFC 5952 specification. The first partial IPv6 address is '2402:f000:6:1001'.

In this embodiment, the preset encoding rule may be an encoding rule that encodes 1 character by 6 bits or an encoding rule of 4 characters by 21 bits, but is not limited thereto.

Figure 2 is an exemplary encoding rule for encoding 1 character with 6 bits. As shown in FIG. 2, in an encoding rule in which one character is encoded by 6 bits, every 6 bits is mapped to one character or a stop character. In order to avoid conflict with the settings of the IPv6 network, the 6-bit coded character of '000000' should be avoided.

It should be noted that using the short name to represent the interface identifier requires 60 bits to correspond to the longest possible 10 characters, so that 4 bits of the interface identifier are idle. In this embodiment, the first and second digits of the interface identifier are not used. 3, 7 bits: Set the first, second, and third bits of the interface identifier to 0 to distinguish it from other addresses, and set the 7th bit of the interface identifier to 0, indicating that it is not the only global interface identifier.

It should be pointed out that before encoding, the short name can be unified into 10 characters. If the short name is not enough for 10 characters, the tail is filled with a stop character to form a short character of 10 characters.

Take '2402:f000:6:1001~printer', an address string with a short name as an example. After the delimiter is '~', the address string is 'printer', using the encoding shown in Figure 2. The rule is encoded and padded to the portion other than the first, second, third, and seventh bits of the last 64 bits, and the first, second, third, and seventh bits are 0, and the length is less than 64 bits, and the stop sign is 000001. The last 64 bits of the formed IPv6 address are '0cdd:5197:c104:1041', that is, the latter part of the IPv6 address is '0cdd:5197:c104:1041'.

The previous partial IPv6 address '2402:f000:6:1001' and the latter partial IPv6 address '0cdd:5197:c104:1041' are connected to form the final IPv6 address '2402:f000:6:1001:cdd:5197:c104:1041 '.

Specifically, for the following symbol ~printer, a system inside the subnet is indicated, and the subnet prefix can be formed according to the IPv6 prefix selection scheme (as shown in RFC3484) and then connected with the last 64 bits corresponding to the short name.

FIG. 3 is an exemplary table of mapping relationship between characters and values. The encoding rule for encoding 4 characters with 21 bits is: according to the hexadecimal notation, each character (including the stop character) corresponds to a value in the hexadecimal notation, and the number of four digits in 38 hexadecimal can be encoded by using 21 bits. The 21-bit coded 4-character encoding rule results in an IPv6 address of up to 12 characters. As shown in Figure 3, for each character, specify a number from 0 to 37, for every four characters ABCD, encode it as a 21-bit representation of the result of A*383+B*382+C*38+D, one Possible mapping from character to value is shown in Figure 3. To avoid conflicts with IPv6 network settings, set ‘-’ to 0. In this embodiment, the 1st bit of the interface identifier is idle. In this embodiment, the 7th bit of the interface identifier is not used: the 7th bit of the interface identifier is set to 0, indicating that the interface identifier is not globally unique.

Take '2402:f000:6:1001~printer', an address string with a short name as an example. After the separator is '~', the address string is 'printer' and the code is encoded with 21 bits. The character encoding rule 'encodes 'printer' is padded to the portion of the last 64 bits except the 7th bit, and the 7th bit is 0, so that the last 64 bits forming the address are 'b907:b73f:4e60: Dc23', that is, the latter part of the IPv6 address is '0cdd: 5197:c104:1041'.

Further, the specific implementation manner of step S104 is: “Using the obfuscation algorithm to perform obfuscation processing on the latter part of the IPv6 address; and connecting the pre-part IPv6 address and the post-partial IPv6 address obtained by the obfuscated processing to form The IPv6 address corresponding to the address string having the short name. In this embodiment, the obfuscating process on the latter part of the IPv6 address can avoid the last 64 bits set by the system having the same short name in different networks. The same, the confusion algorithm is not limited. For example, the latter part of the IPv6 address and the previous part of the IPv6 address are XORed to obtain the confusing latter part of the IPv6 address.

S106. If it does not exist, convert the address string with a short name according to the RFC 5952 specification to obtain an IPv6 address corresponding to the address string with the short name.

Specifically, if the address string does not have a preset delimiter, it can be understood that the address string does not have a short name. In this case, only the RFC 5952 specification is required to convert it into a standard IPv6 address.

The following describes several scenarios with a short name system. After the IPv6 network has a short name, the use will be greatly improved. Addresses with short names can be used for local services, network-related information acquisition and reporting, and easy-to-remember system address designation.

1. Target local service scenarios.

For a given IPv6 network, a host with a specific service can be used by other users in the network by setting the last 64-bit address of the IPv6 address (the latter 64-bit address, that is, the latter part of the IPv6 address). . The specific steps are as follows:

S1: A host with a specific service sets the last 64-bit address of its own IPv6 address to a short name.

S2: Other users in the network directly access the specific services of the host through their short names.

A typical example is the print service. The host can set its own 64 bits to a short name such as printer. In this way, users in the network can access it through ~printer, thus avoiding the difficulty of local service discovery. In addition, since the same short name can be used in different subnets, unlike the domain name system, the short name has a much larger selection space and does not require domain maintenance.

2. For the acquisition and reporting of network related information.

For a given IPv6 network, you can establish a host system with a specific name so that the external network can know some information about the network. The specific steps are as follows:

S1: A host that provides a specific service to the external network, and sets its own IPv6 post-64-bit address to a short name.

S2: Other users in the external network directly access the specific service of the host through their short names.

A typical example is the attack reporting service. In the current network, when a security incident from a certain network occurs, it is often necessary to notify the network administrator of the network. However, this process is often subject to the aging of whois information, various contact information. It is stored in the designated department of the operator, and other departments are difficult to access. Therefore, if a system with a short name of report is established for each IPv6 subnet and the network administrators of each subnet are independently maintained, it can provide greater assistance for the coordination and solution of the problems between the interconnection networks.

3. Specify the scene for the system address that is easy to remember.

Usually, when a system or network administrator sets up a server or router, it needs to statically set a large number of IPv6 addresses. It is usually desirable that these IPv6 addresses can be easily memorized. Existing operating system setup methods, whether stateless or stateful, make this process easy to make mistakes, and the generated addresses are difficult to remember. Even if the last 64 bits are just some simple numeric numbers such as ::1:::IPv4 addresses, it is difficult to associate with the server or router. It helps system administrators and network administrators to name and manage IPv6 addresses by using IPv6 addresses with short names. The specific configuration method is as follows:

S1: Specify the interface as a static IPv6 address through the configuration file of the operating system.

S2: Specifies that the static IPv6 address is a short name format as described above. If the first 64-bit address (the first 64-bit address, that is, the former partial IPv6 address) is not included, the address prefix of the interface is from the IPv6 neighbor discovery protocol. Obtained in.

S3: The operating system sets the interface to the corresponding parsed IPv6 address according to the IPv6 address with the short name set by S2, and if it does not contain the first 64-bit address information, the first 64 obtained by using the IPv6 neighbor discovery protocol. Bit address.

The present invention relates to a host having a specific service for a specified IPv6 network, and by setting its own 64-bit address after IPv6, it is convenient for use by other users in the network. The specific steps are as follows:

S1: A host with a specific service sets its own IPv6 post-64-bit address to a short name.

The method for converting an address string having a short name into an IPv6 address provided in this embodiment includes: obtaining an address string having a short name, and determining whether a preset separator exists in the address string having the short name; Determining a front partial address string and a latter partial address string according to the preset separator; converting the front partial address string into a front partial IPv6 address according to the RFC 5952 specification, and the latter partial address string according to a preset encoding rule Converting to a later partial IPv6 address; connecting the first partial IPv6 address and the latter partial IPv6 address to form an IPv6 address corresponding to the short-named address string. Therefore, the problem that the IPv6 address is difficult to memorize and express is solved by mapping the address string with the short name to the IPv6 address, thereby realizing the specified service identifier and the external network to the subnet public information acquisition within the subnet; Short-name and IPv6 address mapping can be implemented on a third-party server, avoiding additional security risks, service delays, and additional maintenance costs caused by the introduction of third-party servers like DNS; so that short names only need to be The only one in an IPv6 subnet can be used without having to guarantee global uniqueness like the DNS service, which makes local public service possible.

As shown in FIG. 4, the apparatus for converting an address string having a short name into an IPv6 address in this embodiment includes:

An obtaining module for obtaining an address string having a short name;

Further, the determining module is specifically configured to:

Further, the generating module is specifically configured to:

Further, the preset encoding rule is one of the following encoding rules: encoding a 1-character encoding rule with 6 bits, and encoding a 4-character encoding rule with 21 bits.

Further, the conversion module is further configured to: when the determining module determines that the preset delimiter does not exist in the address string with the short name, perform the address string with the short name according to the RFC 5952 specification. Converting to obtain the IPv6 address corresponding to the address string with the short name

With regard to the apparatus in this embodiment, the specific manner in which the respective modules perform the operations has been described in detail in the embodiment relating to the method, and will not be explained in detail herein.

The device for converting an address string with a short name into an IPv6 address provided by the embodiment includes: obtaining an address string with a short name, and determining whether a preset separator exists in the address string having the short name; Determining a front partial address string and a latter partial address string according to the preset separator; converting the front partial address string into a front partial IPv6 address according to the RFC 5952 specification, and the latter partial address string according to a preset encoding rule Converting to a later partial IPv6 address; connecting the first partial IPv6 address and the latter partial IPv6 address to form an IPv6 address corresponding to the short-named address string. Therefore, the problem that the IPv6 address is difficult to memorize and express is solved by mapping the address string with the short name to the IPv6 address, thereby realizing the specified service identifier and the external network to the subnet public information acquisition within the subnet; Short-name and IPv6 address mapping can be implemented on a third-party server, avoiding additional security risks, service delays, and additional maintenance costs caused by the introduction of third-party servers like DNS; so that short names only need to be The only one in an IPv6 subnet can be used without having to guarantee global uniqueness like the DNS service, which makes local public service possible.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, may be combined and combined.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include at least one of the features, either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

Any process or method description in the flowcharts or otherwise described herein may be understood to represent a module, segment or portion of code comprising one or more executable instructions for implementing the steps of a custom logic function or process. And the scope of the preferred embodiments of the invention includes additional implementations, in which the functions may be performed in a substantially simultaneous manner or in an opposite order depending on the functions involved, in the order shown or discussed. It will be understood by those skilled in the art to which the embodiments of the present invention pertain.

The logic and/or steps represented in the flowchart or otherwise described herein, for example, may be considered as an ordered list of executable instructions for implementing logical functions, and may be embodied in any computer readable medium, Used in conjunction with, or in conjunction with, an instruction execution system, apparatus, or device (eg, a computer-based system, a system including a processor, or other system that can fetch instructions and execute instructions from an instruction execution system, apparatus, or device) Or use with equipment. For the purposes of this specification, a "computer-readable medium" can be any apparatus that can contain, store, communicate, propagate, or transport a program for use in an instruction execution system, apparatus, or device, or in conjunction with the instruction execution system, apparatus, or device. More specific examples (non-exhaustive list) of computer readable media include the following: electrical connections (electronic devices) having one or more wires, portable computer disk cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM). In addition, the computer readable medium may even be a paper or other suitable medium on which the program may be printed, as it may be optically scanned, for example by paper or other medium, followed by editing, interpretation or, if appropriate, in other suitable manners. Processing to obtain the program electronically and then storing it in computer memory.

It should be understood that portions of the invention may be implemented in hardware, software, firmware or a combination thereof. In the above-described embodiments, multiple steps or methods may be implemented in software or firmware stored in a memory and executed by a suitable instruction execution system. For example, if implemented in hardware and in another embodiment, it can be implemented by any one or combination of the following techniques well known in the art: discrete with logic gates for implementing logic functions on data signals Logic circuits, application specific integrated circuits with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), and the like.

A person skilled in the art can understand that all or part of the steps carried by the method of the above embodiment can be completed by a program to instruct related hardware, and the program can be stored in a computer readable storage medium. , including one or a combination of the steps of the method embodiments.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, or each unit may exist physically separately, or two or more units may be integrated into one module. The above integrated modules can be implemented in the form of hardware or in the form of software functional modules. An integrated module can also be stored in a computer readable storage medium if it is implemented as a software functional module and sold or used as a standalone product.

The above mentioned storage medium may be a read only memory, a magnetic disk or an optical disk or the like. Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims

A method for converting an address string having a short name into an IPv6 address, comprising:

Get an address string with a short name;

Determining whether a preset delimiter exists in the address string having the short name;

If yes, determining a front partial address string and a latter partial address string according to the preset separator, wherein the front partial address string is in front of the preset splitter in the address string having the short name a partial address string, the latter part of the address string being a partial address string of the address string having the short name after the preset separator;

Converting the previous partial address string into the previous partial IPv6 address according to the RFC 5952 specification, and converting the latter partial address string into the latter partial IPv6 address according to a preset encoding rule;

The first partial IPv6 address and the latter partial IPv6 address are connected to form an IPv6 address corresponding to the short-named address string.
The method according to claim 1, wherein said determining the front partial address string and the latter partial address string according to said preset separator comprises:

If the preset delimiter is not the first character and the last character in the address string having the short name, the first partial address string is in the address string having the short name in the preset a partial address string preceding the separator, the latter partial address string being a partial address string following the preset separator in the address string having the short name;

If the preset delimiter is the first character in the address string having the short name, and obtaining the subnet prefix of the host to which the address string having the short name belongs, the former partial address string is the a subnet prefix, the latter part of the address string is a partial address string of the address string having a short name after the preset separator;

If the preset delimiter is the last character in the address string having the short name, the front part address string is the part of the address string having the short name that precedes the preset delimiter The address string, the latter part of the address string is an empty string.
The method according to claim 1 or 2, wherein the connecting the first partial IPv6 address and the latter partial IPv6 address to form an IPv6 address corresponding to the short-named address string comprises:

Obfuscating the latter part of the IPv6 address by using an obfuscation algorithm;

And connecting the obtained partial IPv6 address to the obtained IPv6 address after the obfuscated processing to form an IPv6 address corresponding to the address string having the short name.
The method according to any one of claims 1-3, wherein the preset encoding rule is one of the following encoding rules: encoding a 1-character encoding rule with 6 bits, encoding 4 encodings with 21 bits The encoding rules for characters.
The method of any of claims 1-4, further comprising:

If not, the address string with the short name is converted according to the RFC 5952 specification to obtain the IPv6 address corresponding to the address string with the short name.
An apparatus for converting an address string having a short name into an IPv6 address, comprising:

An obtaining module for obtaining an address string having a short name;

a determining module, configured to determine whether a preset delimiter exists in the address string with the short name, and if yes, triggering the determining module;

a determining module, configured to determine a front partial address string and a latter partial address string according to the preset separator, wherein the front partial address string is the preset splitter in the address string having the short name The previous part of the address string, the latter part of the address string is the partial address string of the address string having the short name after the preset separator;

a conversion module, configured to convert a front partial address string into a front partial IPv6 address according to the RFC 5952 specification, and convert the latter partial address string into a latter partial IPv6 address according to a preset encoding rule;

And a generating module, configured to connect the foregoing partial IPv6 address and the latter partial IPv6 address to generate an IPv6 address corresponding to the address string with a short name.
The device according to claim 6, wherein the determining module is specifically configured to:

If the preset delimiter is not the first character and the last character in the address string having the short name, the first partial address string is in the address string having the short name in the preset a partial address string preceding the separator, the latter partial address string being a partial address string following the preset separator in the address string having the short name;

If the preset delimiter is the first character in the address string having the short name, and obtaining the subnet prefix of the host to which the address string having the short name belongs, the former partial address string is the a subnet prefix, the latter part of the address string is a partial address string of the address string having a short name after the preset separator;

If the preset delimiter is the last character in the address string having the short name, the front part address string is the part of the address string having the short name that precedes the preset delimiter The address string, the latter part of the address string is an empty string.
The device according to claim 6 or 7, wherein the generating module is specifically configured to:

Obfuscating the latter part of the IPv6 address by using an obfuscation algorithm;

And connecting the obtained partial IPv6 address to the obtained IPv6 address after the obfuscated processing to form an IPv6 address corresponding to the address string having the short name.
The apparatus according to any one of claims 6-8, wherein the preset encoding rule is one of the following encoding rules: encoding a 1-character encoding rule with 6 bits, and encoding 4 bits with 21 bits The encoding rules for characters.
The apparatus according to any one of claims 6 to 9, wherein the conversion module is further configured to: when the determining module determines that there is no preset delimiter in the address string having the short name, The address string with a short name is converted according to the RFC 5952 specification to obtain an IPv6 address corresponding to the address string having the short name.