CN114006858A - IPv6 information discovery method, device, network node and storage medium - Google Patents

Abstract

The present application discloses an IPv6 information discovery method, device, network node and storage medium. The method includes: the first network node sends a router advertisement (RA) message and reports its own IPv6 information to the second network node; wherein the RA message carries the IPv6 address information of the second network node; the second network node Network nodes are used to manage IPv6 information in the network.

Description

Method, device, network node and storage medium for discovering IPv6 information

technical field

The present application relates to the field of Internet Protocol (IP) networks, and in particular, to a method, device, network node and storage medium for discovering IPv6 information.

Background technique

With the rapid development of fifth-generation mobile communication technology (5G) networks and IoT applications, the deployment and application of massive terminal devices and system platforms also pose challenges for asset management in the IPv6 cyberspace. In the IPv6 network space, the address length is extended to 128 bits, and the traditional asset management method for IPv4 cannot meet the needs of IPv6 asset management.

SUMMARY OF THE INVENTION

In order to solve related technical problems, the embodiments of the present application provide a method, device, network node and storage medium for discovering IPv6 information.

The technical solutions of the embodiments of the present application are implemented as follows:

An embodiment of the present application provides an IPv6 information discovery method, which is applied to a first network node, including:

Send a Router Advertisement (RA, Router Solicitation) message and report its own IPv6 information to the second network node; wherein,

The RA message carries the IPv6 address information of the second network node; the second network node is used to manage the IPv6 information in the network.

In the above scheme, the method also includes:

receiving an RA message; the received RA message carries the IPv6 address information of the second network node;

Based on the IPv6 address information of the second network node, report its own IPv6 information to the second network node.

In the above solution, after receiving the RA message, after waiting for a first period of time, based on the IPv6 address information of the second network node, report its own IPv6 information to the second network node.

In the above solution, the IPv6 address information of the second network node is carried in an option part of the RA message.

In the above solution, the option part of the RA message also carries the valid duration of the IPv6 address information of the second network node.

The embodiment of the present application also provides an IPv6 information discovery method, which is applied to a third network node, including:

receiving an RA message; the RA message carries the IPv6 address information of the second network node; the second network node is used to manage IPv6 information in the network;

Report its own IPv6 information to the second network node.

In the above solution, after receiving the RA message and waiting for the second time period, based on the IPv6 address information of the second network node, the IPv6 information of the self is reported to the second network node.

In the above solution, the IPv6 address information of the second network node is carried in the option part of the RA message.

In the above solution, the option part of the RA message also carries the valid duration of the IPv6 address information of the second network node.

The embodiment of the present application also provides an IPv6 information discovery method, which is applied to the second network node, including:

receiving its own IPv6 information reported by other network nodes in the network based on the acquired IPv6 address information of the second network node; the second network node is used to manage the IPv6 information in the network; the IPv6 address of the second network node The information is carried in the RA message;

Save the IPv6 information of the other network nodes.

In the above scheme, the method also includes:

Obtain the moment of receiving the IPv6 information sent by the other network nodes;

Save the time of receiving the IPv6 information sent by the other network nodes.

In the above solution, the IPv6 address information of the second network node is carried in the option part of the RA message.

In the above solution, the option part of the RA message also carries the valid duration of the IPv6 address information of the second network node.

The embodiment of the present application also provides a device for discovering IPv6 information, including:

The sending unit is used to send the RA message;

a first reporting unit, configured to report the IPv6 information of the first network node to the second network node; wherein,

The RA message carries the IPv6 address information of the second network node; the second network node is used to manage the IPv6 information in the network.

The embodiment of the present application also provides a device for discovering IPv6 information, including:

a second receiving unit, configured to receive an RA message; the RA message carries the IPv6 address information of the second network node; the second network node is used to manage IPv6 information in the network;

The second reporting unit is configured to report its own IPv6 information to the second network node.

The embodiment of the present application also provides a device for discovering IPv6 information, including:

a third receiving unit, configured to receive its own IPv6 information reported by other network nodes in the network based on the acquired IPv6 address information of the second network node; the second network node is used to manage the IPv6 information in the network; the second network node The IPv6 address information of the network node is carried in the RA message;

A processing unit, configured to save the IPv6 information of the other network nodes.

Embodiments of the present application further provide a first network node, including: a first processor and a first communication interface; wherein,

The first communication interface is used to send the RA message and report the IPv6 information of the first network node to the second network node; wherein,

The RA message carries the IPv6 address information of the second network node; the second network node is used to manage the IPv6 information in the network.

The embodiment of the present application further provides a third network node, including: a second processor and a second communication interface; wherein,

The second communication interface is used for:

receiving an RA message; the RA message carries the IPv6 address information of the second network node; the second network node is used to manage IPv6 information in the network;

reporting the IPv6 information of the third network node to the second network node.

The embodiment of the present application also provides a second network node, including:

The third communication interface is used to receive its own IPv6 information reported by other network nodes in the network based on the obtained IPv6 address information of the second network node; the second network node is used to manage the IPv6 information in the network; the The IPv6 address information of the second network node is carried in the RA message;

The third processor is configured to save the IPv6 information of the other network nodes.

Embodiments of the present application further provide a first network node, including: a first processor and a first memory for storing a computer program that can be run on the processor,

Wherein, the first processor is configured to execute the steps of any method on the first network node side when running the computer program.

Embodiments of the present application further provide a third network node, including: a second processor and a second memory for storing a computer program that can be executed on the processor,

Wherein, the second processor is configured to execute the steps of any method on the third network node side when running the computer program.

Embodiments of the present application further provide a second network node, including: a third processor and a third memory for storing a computer program that can be executed on the processor,

Wherein, the third processor is configured to execute the steps of any method on the second network node side when running the computer program.

Embodiments of the present application further provide a storage medium, on which a computer program is stored, and when the computer program is executed by a processor, implements the steps of any method on the first network node side, or implements any method on the third network node side. The steps of a method, or the steps of implementing any method on the second network node side.

In the method, device, network node, and storage medium for discovering IPv6 information provided by the embodiments of the present application, a first network node sends an RA message and reports its own IPv6 information to a second network node; the RA message carries the second network node The second network node is used to manage the IPv6 information in the network; and the third network node receives the RA message; the second network node is used to manage the IPv6 information in the network; The second network node reports its own IPv6 information; the second network node receives its own IPv6 information reported by other network nodes in the network based on the obtained IPv6 address information of the second network node; and saves the IPv6 information of the other network nodes, The IPv6 address of the second network node used to manage IPv6 information in the network is advertised step by step through the routing device, which avoids a large number of configuration processes, optimizes asset management, and avoids tedious operation and maintenance work. IPv6 scenarios.

Description of drawings

1 is a schematic flowchart of a method for discovering IPv6 information according to an embodiment of the present application;

2 is a schematic flowchart of a host device acquiring routing information of a network where it is located according to an embodiment of the present application;

FIG. 3 is a schematic diagram of an RA message format according to an embodiment of the present application;

Figure 4 is a schematic diagram of the format of an option part;

FIG. 5 is a schematic diagram of the format of an option part extended in an embodiment of the present application;

6 is a schematic flowchart of another method for discovering IPv6 information according to an embodiment of the present application;

7 is a schematic flowchart of a third method for discovering IPv6 information according to an embodiment of the present application;

8 is a schematic flowchart of a network structure and an IPv6 asset automatic discovery method according to an application embodiment of the present application;

9 is a schematic structural diagram of an apparatus for discovering IPv6 information according to an embodiment of the present application;

10 is a schematic structural diagram of another IPv6 information discovery apparatus according to an embodiment of the present application;

11 is a schematic structural diagram of a third IPv6 information discovery apparatus according to an embodiment of the present application;

FIG. 12 is a schematic structural diagram of a first network node according to an embodiment of the present application;

FIG. 13 is a schematic structural diagram of a third network node according to an embodiment of the present application;

FIG. 14 is a schematic structural diagram of a second network node according to an embodiment of the present application.

Detailed ways

The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

The core difficulty of IPv6 asset management lies in how to use limited resources, accurately grasp the changes of asset status within an acceptable time frame, and effectively monitor IPv6 assets.

Since the length of an IPv6 address is 128 bits, if the scanning method of traversing the address space in the IPv4 scenario is used, it will take hundreds of years to complete a round of scanning. Therefore, some techniques are usually used to reduce the IPv6 address space to be detected to speed up the address 's discovery.

Technically, it is difficult to use a single method to effectively manage IPv6 addresses. In the related art, a variety of IPv6 address discovery/scanning technologies have been proposed, and typical implementation methods include: Domain Name System (DNS) reverse resolution method, addressing rule method, and traffic analysis method. The introduction of these three implementation methods is shown in Table 1.

Table 1

As can be seen from Table 1, the DNS reverse resolution method and the addressing rule method are only suitable for specific scenarios, while the traffic analysis method requires additional deployment of network traffic capture and analysis nodes, which will generate a large number of network traffic while managing IPv6 assets. Deployment and operation and maintenance workload, that is to say, the above three implementation methods can assist in the management of IPv6 assets in some specific scenarios. Although the time consumption of the above three implementation methods has been greatly improved compared to the brute force scanning method, among the above three implementation methods, asset management for IPv6 does not have universal applicability, that is, none of the related technologies The method is suitable for general scenarios.

Based on this, in various embodiments of this application, an IPv6 asset data management node is set up in the network, and through the Neighbor Discovery Protocol (NDP), the network node is actively reported to the asset data management node of its own IPv6 assets (or called IPv6 information).

The terms used in the embodiments of the present application are defined below:

Node (also known as network node): a network device with an IP address;

Host equipment: terminal equipment without routing and forwarding function;

Routing device (also known as router): a network device with routing and forwarding functions;

Asset data management node: a network device capable of collecting and managing IPv6 information and accessible to the node network

A node is a collection of host devices and routing devices, and can of course also contain asset data management nodes.

The nodes, host devices, routing devices, and asset data management nodes defined above all have IPv6 addresses.

An embodiment of the present application provides an IPv6 information discovery method, which is applied to a first network node. As shown in FIG. 1 , the method includes:

Step 101: Send an RA message;

Step 102: report its own IPv6 information to the second network node; wherein,

The RA message carries the IPv6 address information of the second network node; the second network node is used to manage the IPv6 information in the network.

Here, in practical application, the first network node may be a routing device in the network.

When implementing the solutions of the embodiments of the present application, on a large-scale network, the Pv6 address information of the second network node may be pre-configured on the backbone network or the routing device of the metropolitan area network in the network, and the routing device can use the RA report. The document advertises the IPv6 address information of the second network node to the network nodes in the network from top to bottom, so that all other IPv6 nodes in the network can be informed and report their own IPv6 information to the designated address.

In practical application, the second network node may also be referred to as an IPv6 asset data management node.

In a LAN that supports IPv6, when a new host device is connected to the network, as shown in Figure 2, in order to obtain the routing information of the network, the host sends the router to FF02::2 (all routing devices on the local link) Request (RS, Router Solicitation) multicast packet, that is, RS message. After the router receives the RS packet, it replies to the RA unicast packet, that is, the RA message; wherein, the RA message includes the routing address, routing prefix, and maximum transmission unit. (MTU), Reversible DNS (RDNS) and other information. In the implementation of this application, the RA message also carries the IPv6 address information of the second network node.

Among them, when the host device is not configured with a unicast address, it will send an RS message. RS packets help host devices to automatically configure quickly without waiting for RA packets sent periodically by routing devices.

The routing device can periodically announce its existence and configured link and network parameters through RA packets, and can also respond to RS packets through RA packets.

In practical application, in step 101, sending the RA message may be to periodically send the RA message carrying the IPv6 address information of the second network node, or it may be to send the RA message carrying the second network node after receiving the RS message from the host device. RA message for the node's IPv6 address information.

The fact that the first network node reports its own IPv6 information to the second network node can also be understood as the first network node reporting its own IPv6 information to the second network node.

In practical application, steps 101 and 102 are performed in no particular order, that is, step 101 may be performed first, and then step 102 may be performed; or step 102 may be performed first, and then step 101 may be performed.

The IPv6 information may include a globally unique unicast IPv6 address, a link-local IPv6 address, etc., that is, the IPv6 information may be understood as an information set.

In practical application, in step 102, the first network node sends a packet (which may be a control packet or a data packet) that carries the IPv6 information of the first network node; wherein, the packet carrying the packet may be selected according to a specific scenario. Protocol, that is, packets can be sent based on various types of protocols, such as Internet Control Message Protocol (ICMP), Hypertext Transfer Protocol (HTTP), etc., which are not limited in this embodiment of the present application.

In practical application, the first network node may be a backbone network or a routing device of a metropolitan area network in the network. In this case, since the IPv6 address information of the second network node is configured on these routing devices, Therefore, the first network node only needs to send the RA message to the next-level routing device and report its own IPv6 information to the second network node.

The first network node may also be other routing devices except the routing device of the backbone network or the metropolitan area network. In this case, the first network node needs to obtain the RA message from other routing devices in order to obtain the second network node. IPv6 address information of the network node, so as to generate an RA message by using the obtained IPv6 address information of the second network node, and report its own IPv6 information to the second network node.

Based on this, in one embodiment, the method may further include:

receiving an RA message; the received RA message carries the IPv6 address information of the second network node;

Based on the IPv6 address information of the second network node, report its own IPv6 information to the second network node.

Wherein, in practical application, in order to avoid a large number of network nodes reporting IPv6 information to the second network node at a centralized time, causing the second network node to be unable to process, thereby forming a distributed denial of service attack, a duration can be set, After receiving the RA message, the first network node waits for a period of time before reporting its own IPv6 information.

Based on this, in an embodiment, the first network node receives the RA message, waits for a first period of time, and reports its own RA message to the second network node based on the IPv6 address information of the second network node. IPv6 information.

The first duration may be determined according to needs, for example, a random algorithm may be used to determine the first duration, or, for example, a duration may be preset in the first network node as the first duration, etc. This is not limited.

Figure 3 shows the format of the RA message. Wherein, Type=134. As shown in Figure 3, the RA message can carry multiple option parts, and the format of each option part is shown in Figure 4. In the embodiment of the present application, the RA message of the NDP can be extended, specifically, the option part of the RA message is extended, that is, an option carrying the IPv6 address information of the second network node is added, as shown in the figure 5 shown.

Wherein, Type can be defined as required, used to identify the second network node, and the length can be 8 bits.

The length (length) indicates the length of the packet, and its value can be set to 3, indicating that the length of the extended RA message is three 8-byte lengths.

The valid time (Valid Lifetime) represents the valid time for the IPv6 address of the second network node to survive, and correspondingly, the waiting time should be in the range of 0 to the valid time.

Add_mng_IP represents the IPv6 address of the second network node.

It can be seen from the above description that the option part of the RA message may also carry the valid duration of the IPv6 address information of the second network node, that is, Valid Lifetime.

For the host device on the network, after receiving the RA message, it only needs to report its own IPv6 information.

Correspondingly, an embodiment of the present application also provides a method for discovering IPv6 information, which is applied to a third network node. As shown in FIG. 6 , the method includes:

Step 601: Receive an RA message; the RA message carries IPv6 address information of a second network node; the second network node is used to manage IPv6 information in the network;

Step 602: Report its own IPv6 information to the second network node.

Here, in practical application, the third network node may be a host device in the network.

The third network node reporting its own IPv6 information to the second network node can also be understood as the third network node reporting its own IPv6 information to the second network node.

The IPv6 information may include a globally unique unicast IPv6 address, a link-local IPv6 address, etc., that is, the IPv6 information may be understood as an information set.

In practical application, in step 602, the second network node sends a packet (which may be a control packet or a data packet) that carries the IPv6 information of the second network node; wherein, the packet carrying the packet may be selected according to a specific scenario. protocol, that is, packets can be sent based on various types of protocols, such as ICMP, HTTP, etc., which is not limited in this embodiment of the present application.

Wherein, in practical application, in order to avoid a large number of network nodes reporting IPv6 information to the second network node at a centralized time, causing the second network node to be unable to process, thereby forming a distributed denial of service attack, a duration can be set, After receiving the RA message, the second network node waits for a period of time before reporting its own IPv6 information.

Based on this, in an embodiment, the third network node receives the RA message, and after waiting for a second time period, reports its own RA message to the second network node based on the IPv6 address information of the second network node. IPv6 information.

The second duration may be determined according to needs, for example, a random algorithm may be used to determine the second duration, and for example, a duration may be preset in the third network node as the second duration, etc. This is not limited.

Among them, the format of the RA message can be understood with reference to the previous description,

Correspondingly, an embodiment of the present application also provides a method for discovering IPv6 information, which is applied to a second network node. As shown in FIG. 7 , the method includes:

Step 701: Receive its own IPv6 information reported by other network nodes in the network based on the acquired IPv6 address information of the second network node; the second network node is used to manage the IPv6 information in the network; the second network node The IPv6 address information is carried in the RA message;

Step 702: Save the IPv6 information of the other network nodes.

Wherein, in practical application, the other network nodes may include a routing device and a host device.

In practical application, in order to judge (also referred to as screening) the existence or failure of the stored IPv6 addresses, and to screen valid IPv6 addresses from them, the moment when IPv6 information is received may be recorded.

Based on this, in one embodiment, the method may further include:

Obtain (also can be understood as recording) the moment of receiving the IPv6 information sent by the other network node;

Save the time of receiving the IPv6 information sent by the other network nodes.

In this way, the second network node judges the survival or failure of the corresponding IPv6 address according to the corresponding reception time, and selects valid IPv6 addresses from it, that is, the reception time of the IPv6 information can be used for the survival or failure of the IPv6 address. The invalidation is judged, and valid IPv6 addresses are screened from them.

In the IPv6 information discovery method provided by the embodiment of the present application, the first network node sends an RA message and reports its own IPv6 information to the second network node; the RA message carries the IPv6 address information of the second network node; the second network node The network node is used to manage the IPv6 information in the network; and the third network node receives the RA message; the second network node is used to manage the IPv6 information in the network; and report its own IPv6 information to the second network node; The second network node receives its own IPv6 information reported by other network nodes in the network based on the obtained IPv6 address information of the second network node; and saves the IPv6 information of the other network nodes, and advertises it through the routing device for management The IPv6 address of the second network node of the IPv6 information in the network avoids a large number of configuration processes, optimizes asset management, and avoids tedious operation and maintenance work, and can be applied to general IPv6 scenarios.

The present application will be described in further detail below in conjunction with application examples.

In this application embodiment, as shown in FIG. 8 , the network architecture includes a two-level routing device, a host device, and an IPv6 asset data management node.

Here, it should be noted that, in practical applications, the network architecture may include more levels of routing devices.

In the following description, the IPv6 asset data management node is called add_mng_host, the IPv6 address of the IPv6 asset data management node is called add_mng_IP, and the IPv6 information of the network node is called host_info.

8, the method for automatically discovering IPv6 assets in this application embodiment includes the following steps:

Step 1: The routing device advertises the add_mng_IP of add_mng_host through an RA message;

here,

Step 2: The network node H receives the RA message containing the add_mng_IP, and extracts the add_mng_IP;

Step 3: The network node H waits for a random duration t, sends a data packet to add_mng_host, and actively reports its own host_info;

Step 4: If the network node H in Step 3 is a routing device, in addition to performing the operations according to Step 3, it is also necessary to forward RA packets to all downlink interfaces to announce the add_mng_IP of add_mng_host, thus ensuring that the RA packets carrying add_mng_IP after expansion are ensured It can be passed from top to bottom along the routing device.

Step 5: add_mng_host receives a data packet containing host_info, extracts host_info from the data packet, records and stores host_info and the receiving time T (host_info) of the data packet.

Among them, when using the RA message to announce the add_mng_IP of add_mng_host, the RA message extension of NDP is used. Specifically, the option part of the RA message is expanded, and an option carrying the add_mng_IP of add_mng_host is added. The format of the newly added option is as follows shown in Figure 5.

The host_info carries the own information of the network node, which is an information set, including the local link IPv6 address, the global unique unicast IPv6 address, and so on.

Through the above operations, the IPv6 information of all network nodes in the network can be collected, and the management of the IPv6 addresses of the entire network is formed at add_mng_host. At the same time, the receiving time T (host_info) of the data packet is recorded in this step, which can be used to judge, screen and filter the surviving and invalid IPv6 addresses.

With the solution of this application embodiment, when the add_mng_IP of add_mng_host changes, it only needs to reconfigure the information on the upper-level router (that is, the router at the top in the flowchart). The add_mng_IP can be progressively spread to the entire network that needs to be managed.

Among them, for the above network architecture, in practical application, in a local area network that supports IPv6, when a new host device is connected, based on the NDP protocol process, address detection is performed to ensure that the newly connected host device obtains a reasonable IPv6 address. The process of the newly connected host device from accessing the IPv6 local area network to obtaining the IPv6 address includes the following steps:

Step 1: the newly accessed host device obtains the link-local IPv6 address by means of duplicate address detection (DAD);

Step 2: The newly connected host device obtains routing information;

Step 3: The newly connected host device obtains neighbor information;

Step 4: The newly accessed host device obtains the global unicast IPv6 address by using the DAD method;

Step 5: The newly connected host device advertises its own IPv6 address.

Here, the specific process of the newly accessed host device from accessing the IPv6 local area network to acquiring the IPv6 address can be understood with reference to the related art, and details are not repeated here.

It can be seen from the above description that the solution of the embodiment of the present application is a protocol-based automatic management method for IPv6 assets. In the solution of the embodiment of the present application, an IPv6 asset data management node is set for collecting IPv6 assets and actively reporting information to realize the management of IPv6 assets.

Specifically, by extending NDP, the IPv6 address of the IPv6 asset data management node is advertised from the routing device to the network nodes (including the routing device and the host device) step by step (the option part of the extended RA message is added, and a new one carrying the IPv6 asset data management node is added). The option part of the node address information); after learning the IPv6 address of the IPv6 asset data management node, the network node reports its own IPv6 information to the address.

Compared with the IPv6 address scanning method in the related art, the solution provided by the embodiment of the present application is shorter in time and more targeted; The solution is suitable for general IPv6 scenarios. In addition, the information of IPv6 asset data management nodes is advertised step by step through the router, which avoids a large number of configuration processes, and avoids tedious operation and maintenance work while optimizing asset management.

In order to implement the method of the embodiment of the present application, the embodiment of the present application further provides an IPv6 information discovery device, which is set on the first network node. As shown in FIG. 9 , the device includes:

a sending unit 901, configured to send an RA message;

a first reporting unit 902, configured to report the IPv6 information of the first network node to the second network node; wherein,

The RA message carries the IPv6 address information of the second network node; the second network node is used to manage the IPv6 information in the network.

Wherein, in one embodiment, the device may further include:

a first receiving unit, configured to receive an RA message; the received RA message carries the IPv6 address information of the second network node;

The first reporting unit 902 is configured to report its own IPv6 information to the second network node based on the IPv6 address information of the second network node.

Wherein, in an embodiment, the first reporting unit 902 is further configured to acquire the IPv6 address information of the second network node from the RA message.

In an embodiment, the first reporting unit 902 is specifically configured to:

After receiving the RA message, after waiting for a first period of time, based on the IPv6 address information of the second network node, report its own IPv6 information to the second network node.

In practical application, the sending unit 901 and the first receiving unit can be implemented by a communication interface in the IPv6 information discovery device; the first reporting unit 902 can be implemented by a processor in the IPv6 information discovery device combined with the communication interface.

In order to implement the method on the third network node side in the embodiment of the present application, the embodiment of the present application further provides an IPv6 information discovery device, which is set on the third network node. As shown in FIG. 10 , the device includes:

The second receiving unit 1001 is configured to receive an RA message; the RA message carries IPv6 address information of a second network node; the second network node is used to manage IPv6 information in the network;

The second reporting unit 1002 is configured to report its own IPv6 information to the second network node.

Wherein, in an embodiment, the second reporting unit 1002 is further configured to acquire the IPv6 address information of the second network node from the RA message.

In one embodiment, the second reporting unit 1002 is specifically configured to:

After receiving the RA message, after waiting for the second time period, based on the IPv6 address information of the second network node, report the IPv6 information of the self to the second network node.

In practical application, the second receiving unit 1001 may be implemented by a communication interface in the IPv6 information discovery apparatus; the second reporting unit 1002 may be implemented by a processor in the IPv6 information discovery apparatus in conjunction with the communication interface.

In order to implement the method on the second network node side in the embodiment of the present application, the embodiment of the present application further provides an IPv6 information discovery device, which is set on the second network node. As shown in FIG. 11 , the device includes:

The third receiving unit 1101 is configured to receive its own IPv6 information reported by other network nodes in the network based on the acquired IPv6 address information of the second network node; the second network node is used to manage the IPv6 information in the network; 2. The IPv6 address information of the network node is carried in the RA message;

The processing unit 1102 is configured to save the IPv6 information of the other network nodes.

Wherein, in one embodiment, the device may further include:

an obtaining unit, used for obtaining the moment of receiving the IPv6 information sent by the other network nodes;

The processing unit 1102 is configured to save the time of receiving the IPv6 information sent by the other network nodes.

In practical application, the third receiving unit 1101 may be implemented by a communication interface in the IPv6 information discovery device; the processing unit 1102 and the obtaining unit may be implemented by a processor in the IPv6 information discovery device combined with the communication interface.

It should be noted that: when the IPv6 information discovery device provided by the above embodiment performs IPv6 information discovery, only the division of the above program modules is used for illustration. Completion means dividing the internal structure of the device into different program modules to complete all or part of the processing described above. In addition, the IPv6 information discovery device and the IPv6 information discovery method embodiments provided by the above embodiments belong to the same concept, and the specific implementation process thereof is detailed in the method embodiments, which will not be repeated here.

Based on the hardware implementation of the above program modules, and in order to implement the method for sending the first network node side in the embodiment of the present application, the embodiment of the present application further provides a first network node. As shown in FIG. 12 , the first network node 1200 includes :

a first communication interface 1201, capable of information interaction with other network nodes;

The first processor 1202 is connected to the first communication interface 1201 to implement information interaction with other network nodes, and is used to execute the methods provided by one or more technical solutions on the first network node side when running a computer program. And the computer program is stored on the first memory 1203 .

Specifically, the first communication interface 1201 is used to send an RA message and report the IPv6 information of the first network node to the second network node; wherein,

The RA message carries the IPv6 address information of the second network node; the second network node is used to manage the IPv6 information in the network.

Wherein, in an embodiment, the first communication interface 1201 is further configured to receive an RA message; the received RA message carries the IPv6 address information of the second network node;

The first communication interface 1201 is configured to report the IPv6 information of the first communication node to the second network node based on the IPv6 address information of the second network node.

Wherein, in an embodiment, the first processor 1202 is further configured to acquire the IPv6 address information of the second network node from the RA message.

Wherein, in an embodiment, the first communication interface 1201 is specifically used for:

After receiving the RA message, after waiting for a first period of time, based on the IPv6 address information of the second network node, report the IPv6 information of the first communication node to the second network node through the first communication interface 1201 .

It should be noted that: the specific processing process of the first processor 1202 and the first communication interface 1201 can be understood with reference to the above method.

Of course, in practical application, various components in the first network node 1200 are coupled together through the bus system 1204 . It will be appreciated that the bus system 1204 is used to implement connection communication between these components. In addition to the data bus, the bus system 1204 also includes a power bus, a control bus, and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 1204 in FIG. 12 .

The first memory 1203 in this embodiment of the present application is used to store various types of data to support the operation of the first network node 1200 . Examples of these data include: any computer program for operating on the first network node 1200 .

The methods disclosed in the above embodiments of the present application may be applied to the first processor 1202 or implemented by the first processor 1202 . The first processor 1202 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method may be completed by an integrated logic circuit of hardware in the first processor 1202 or an instruction in the form of software. The above-mentioned first processor 1202 may be a general-purpose processor, a digital signal processor (DSP, Digital Signal Processor), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The first processor 1202 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of this application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the first memory 1203, and the first processor 1202 reads the information in the first memory 1203, and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the first network node 1200 may be implemented by one or more Application Specific Integrated Circuits (ASIC, Application Specific Integrated Circuits), DSPs, Programmable Logic Devices (PLDs, Programmable Logic Devices), complex programmable logic devices (CPLD, Complex Programmable LogicDevice), Field-Programmable Gate Array (FPGA, Field-Programmable Gate Array), general-purpose processor, controller, microcontroller (MCU, Micro Controller Unit), microprocessor (Microprocessor), or other Electronic components are implemented for carrying out the aforementioned method.

Based on the hardware implementation of the above program modules, and in order to implement the method on the third network node side in the embodiment of the present application, the embodiment of the present application further provides a third network node. As shown in FIG. 13 , the third network node 1300 includes :

The second communication interface 1301 is capable of information interaction with other network nodes;

The second processor 1302 is connected to the second communication interface 1301 to implement information exchange with other network nodes, and is used to execute the methods provided by one or more technical solutions on the third network node side when running a computer program. And the computer program is stored on the second memory 1303 .

Specifically, the second communication interface 1301 is used for:

receiving an RA message; the RA message carries the IPv6 address information of the second network node; the second network node is used to manage IPv6 information in the network;

reporting the IPv6 information of the third network node to the second network node.

Wherein, in an embodiment, the second processor 1302 is configured to acquire the IPv6 address information of the second network node from the RA message.

In one embodiment, the second communication interface 1301 is used for:

After receiving the RA message, after waiting for the second period of time, based on the IPv6 address information of the second network node, report the IPv6 information of the third network node to the second network node through the second communication interface 1301 .

It should be noted that: the specific processing process of the second processor 1302 and the second communication interface 1301 can be understood with reference to the above method.

Of course, in practical application, various components in the third network node 1300 are coupled together through the bus system 1304 . It will be appreciated that the bus system 1304 is used to implement connection communication between these components. In addition to the data bus, the bus system 1304 also includes a power bus, a control bus, and a status signal bus. However, for clarity of illustration, the various buses are labeled as bus system 1304 in FIG. 13 .

The second memory 1303 in this embodiment of the present application is used to store various types of data to support the operation of the third network node 1300 . Examples of such data include: any computer program for operating on the third network node 1300.

The methods disclosed in the above embodiments of the present application may be applied to the second processor 1302 or implemented by the second processor 1302 . The second processor 1302 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method may be completed by an integrated logic circuit of hardware in the second processor 1302 or an instruction in the form of software. The above-mentioned second processor 1302 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The second processor 1302 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of this application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the second memory 1303, and the second processor 1302 reads the information in the second memory 1303, and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the third network node 1300 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general purpose processors, controllers, MCUs, Microprocessors, or other electronic components for performing the aforementioned methods .

Based on the hardware implementation of the above program modules, and in order to implement the method on the second network node side in the embodiment of the present application, the embodiment of the present application further provides a second network node. As shown in FIG. 14 , the second network node 1400 includes :

The third communication interface 1401 is capable of information interaction with other network nodes;

The third processor 1402 is connected to the third communication interface 1401 to implement information exchange with other network nodes, and is used to execute the methods provided by one or more technical solutions on the second network node side when running a computer program. And the computer program is stored on the third memory 1403 .

Specifically, the third communication interface 1401 is used to receive its own IPv6 information reported by other network nodes in the network based on the obtained IPv6 address information of the second network node; the second network node is used to manage the network IPv6 information; the IPv6 address information of the second network node is carried in the RA message;

The third processor 1402 is configured to save the IPv6 information of the other network nodes.

Wherein, in an embodiment, the third processor 1402 is further configured to:

Obtain the moment of receiving the IPv6 information sent by the other network nodes;

Save the time of receiving the IPv6 information sent by the other network nodes.

Of course, in practical application, various components in the second network node 1400 are coupled together through the bus system 1404 . It will be appreciated that the bus system 1404 is used to implement the connection communication between these components. In addition to the data bus, the bus system 1404 also includes a power bus, a control bus, and a status signal bus. For clarity, however, the various buses are labeled as bus system 1404 in FIG. 14 .

The third memory 1403 in this embodiment of the present application is used to store various types of data to support the operation of the second network node 1400 . Examples of such data include: any computer program for operating on the second network node 1400 .

The methods disclosed in the above embodiments of the present application may be applied to the third processor 1402 or implemented by the third processor 1402 . The third processor 1402 may be an integrated circuit chip with signal processing capability. In the implementation process, each step of the above-mentioned method may be completed by an integrated logic circuit of hardware in the third processor 1402 or an instruction in the form of software. The above-mentioned third processor 1402 may be a general-purpose processor, a DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, and the like. The third processor 1402 may implement or execute the methods, steps, and logical block diagrams disclosed in the embodiments of this application. A general purpose processor may be a microprocessor or any conventional processor or the like. The steps of the method disclosed in the embodiments of the present application can be directly embodied as being executed by a hardware decoding processor, or executed by a combination of hardware and software modules in the decoding processor. The software module may be located in a storage medium, and the storage medium is located in the third memory 1403, the third processor 1402 reads the information in the third memory 1403, and completes the steps of the foregoing method in combination with its hardware.

In an exemplary embodiment, the second network node 1400 may be implemented by one or more ASICs, DSPs, PLDs, CPLDs, FPGAs, general purpose processors, controllers, MCUs, Microprocessors, or other electronic components for performing the aforementioned methods .

It can be understood that the memories (the first memory 1203, the second memory 1303, and the third memory 1403) in this embodiment of the present application may be volatile memories or non-volatile memories, and may also include volatile and non-volatile memories both. Among them, the non-volatile memory may be a read-only memory (ROM, Read Only Memory), a programmable read-only memory (PROM, Programmable Read-Only Memory), an erasable programmable read-only memory (EPROM, Erasable Programmable Read-Only Memory) Memory), Electrically Erasable Programmable Read-Only Memory (EEPROM, Electrically Erasable Programmable Read-Only Memory), Magnetic Random Access Memory (FRAM, ferromagneticrandom access memory), Flash Memory, Magnetic Surface Memory, Optical Disc, Or compact disc read-only memory (CD-ROM, Compact Disc Read-Only Memory); magnetic surface memory can be magnetic disk memory or tape memory. The volatile memory may be random access memory (RAM, Random Access Memory), which is used as an external cache memory. By way of example and not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM, Dynamic Random Access Memory), Synchronous Dynamic Random Access Memory (SDRAM, Synchronous Dynamic Random Access Memory), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM, Double Data Rate Synchronous Dynamic Random Access Memory), Enhanced Synchronous Dynamic Random Access Memory Access memory (ESDRAM, Enhanced Synchronous Dynamic Random Access Memory), synchronous link dynamic random access memory (SLDRAM, SyncLink Dynamic Random Access Memory), Direct memory bus random access memory (DRRAM, Direct Rambus Random Access Memory). The memories described in the embodiments of the present application are intended to include, but not be limited to, these and any other suitable types of memories.

In an exemplary embodiment, an embodiment of the present application further provides a storage medium, that is, a computer storage medium, specifically a computer-readable storage medium, for example, including a first memory 1203 that stores a computer program, and the above-mentioned computer program can be obtained by a first network The first processor 1202 of the node 1200 executes the steps described in the foregoing first network node-side method. Another example includes the second memory 1303 storing a computer program, and the computer program can be executed by the second processor 1302 of the third network node 1300 to complete the steps of the aforementioned third network node-side method. For another example, it includes a third memory 1403 storing a computer program, and the computer program can be executed by the third processor 1402 of the second network node 1400 to complete the steps of the aforementioned second network node-side method. The computer-readable storage medium may be memory such as FRAM, ROM, PROM, EPROM, EEPROM, Flash Memory, magnetic surface memory, optical disk, or CD-ROM.

It should be noted that "first", "second", etc. are used to distinguish similar objects, and are not necessarily used to describe a specific sequence or sequence.

In addition, the technical solutions described in the embodiments of the present application may be combined arbitrarily unless there is a conflict.

The above descriptions are only preferred embodiments of the present application, and are not intended to limit the protection scope of the present application.

Claims (23)

1. An IPv6 information discovery method applied to a first network node, comprising:

sending a router advertisement RA message and reporting own IPv6 information to a second network node; wherein,

the RA message carries IPv6 address information of a second network node; the second network node is for managing IPv6 information in the network.

2. The method of claim 1, further comprising:

receiving an RA message; the received RA message carries IPv6 address information of the second network node;

and reporting the own IPv6 information to the second network node based on the IPv6 address information of the second network node.

3. The method of claim 2, wherein after receiving the RA packet and waiting for the first duration, reporting IPv6 information of the RA packet to the second network node based on IPv6 address information of the second network node.

4. The method according to any of claims 1 to 3, wherein the IPv6 address information of the second network node is carried in an optional option part of an RA packet.

5. The method of claim 4, wherein an option portion of an RA packet further carries a valid duration of IPv6 address information of the second network node.

6. An IPv6 information discovery method applied to a third network node, comprising:

receiving an RA message; the RA message carries IPv6 address information of a second network node; the second network node is used for managing IPv6 information in the network;

and reporting the IPv6 information of the second network node to the second network node.

7. The method of claim 6, wherein after receiving the RA packet and waiting for the second duration, reporting IPv6 information of the RA packet to the second network node based on the IPv6 address information of the second network node.

8. The method according to claim 6 or 7, wherein the IPv6 address information of the second network node is carried in an option part of an RA message.

9. The method of claim 8, wherein an option portion of an RA packet further carries a valid duration of IPv6 address information of the second network node.

10. An IPv6 information discovery method applied to a second network node, comprising:

receiving own IPv6 information reported by other network nodes in the network based on the acquired IPv6 address information of the second network node; the second network node is used for managing IPv6 information in the network; the IPv6 address information of the second network node is carried in the RA message;

and storing the IPv6 information of the other network nodes.

11. The method of claim 10, further comprising:

acquiring the moment of receiving the IPv6 information sent by the other network nodes;

and saving the time for receiving the IPv6 information sent by the other network nodes.

12. The method according to claim 10 or 11, wherein the IPv6 address information of the second network node is carried in an option portion of an RA packet.

13. The method of claim 12, wherein an option portion of an RA packet further carries a valid duration of IPv6 address information of the second network node.

14. An IPv6 information discovery apparatus, comprising:

a sending unit, configured to send an RA packet;

the first reporting unit is used for reporting the IPv6 information of the first network node to the second network node; wherein,

the RA message carries IPv6 address information of a second network node; the second network node is for managing IPv6 information in the network.

15. An IPv6 information discovery apparatus, comprising:

a second receiving unit, configured to receive an RA packet; the RA message carries IPv6 address information of a second network node; the second network node is used for managing IPv6 information in the network;

and the second reporting unit is configured to report the IPv6 information of the second network node to the second network node.

16. An IPv6 information discovery apparatus, comprising:

the third receiving unit is used for receiving own IPv6 information reported by other network nodes in the network based on the acquired IPv6 address information of the second network node; the second network node is used for managing IPv6 information in the network; the IPv6 address information of the second network node is carried in the RA message;

and the processing unit is used for storing the IPv6 information of the other network nodes.

17. A first network node, comprising: a first processor and a first communication interface; wherein,

the first communication interface is used for sending an RA message and reporting IPv6 information of the first network node to a second network node; wherein,

the RA message carries IPv6 address information of a second network node; the second network node is for managing IPv6 information in the network.

18. A third network node, comprising: a second processor and a second communication interface; wherein,

the second communication interface is configured to:

receiving an RA message; the RA message carries IPv6 address information of a second network node; the second network node is used for managing IPv6 information in the network;

and reporting the IPv6 information of the third network node to the second network node.

19. A second network node, comprising:

the third communication interface is used for receiving self IPv6 information reported by other network nodes in the network based on the acquired IPv6 address information of the second network node; the second network node is used for managing IPv6 information in the network; the IPv6 address information of the second network node is carried in the RA message;

and the third processor is used for storing the IPv6 information of the other network nodes.

20. A first network node, comprising: a first processor and a first memory for storing a computer program capable of running on the processor,

wherein the first processor is adapted to perform the steps of the method of any one of claims 1 to 5 when running the computer program.

21. A third network node, comprising: a second processor and a second memory for storing a computer program capable of running on the processor,

wherein the second processor is adapted to perform the steps of the method of any of claims 6 to 9 when running the computer program.

22. A second network node, comprising: a third processor and a third memory for storing a computer program capable of running on the processor,

wherein the third processor is adapted to perform the steps of the method of any of claims 10 to 13 when running the computer program.

23. A storage medium having stored thereon a computer program for performing the steps of the method of any one of claims 1 to 5, or for performing the steps of the method of any one of claims 6 to 9, or for performing the steps of the method of any one of claims 10 to 13, when the computer program is executed by a processor.

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