CN103561122A - IPv6 address collocation method, IPv6 client and server - Google Patents

Abstract

The invention discloses an IPv6 address collocation method, an IPv6 client and a server. The method comprises the steps that the IPv6 client receives an RA message from a router, the RA message comprises server information of the DHCPv6 server, and the server information comprises a server address of the DHCPv6 server; the IPv6 client sends a DHCP request to the DHCPv6 server according to the server address; the IPv6 client conducts address collocation according to a DHCP response fed back from the DHCPv6 server. According to the IPv6 address collocation method, the RA message comprises the server address of the DHCPv6 server, the IPv6 client sends the DHCP request according to the server address, when a multi-routing phenomenon exists in the same link, the IPv6 client routes the correct DHCPv6 server, the DHCP response is obtained from the correct DHCPv6 server, and correct routing information can be rapidly obtained.

Description

IPv6 address configuration method, IPv6 client and server

technical field

The invention relates to the technical field of communication, in particular to an IPv6 address configuration method, an IPv6 client and a server.

Background technique

With the exhaustion of Internet Protocol (Internet Protocol, referred to as IP) version 4 (IPv4) addresses and the increasing difficulty of maintaining the backbone routing table, more and more operators are beginning to try to deploy the sixth version of IP (IPv6). Compared with the dynamic address acquisition method of IPv4, the dynamic address acquisition method of IPv6 has undergone great changes. IPv4 can obtain addresses dynamically only by the dynamic host configuration protocol (Dynamic Host Configuration Protocol, referred to as DHCP) interaction process. IPv6 takes into account In the case of wireless and managing a large number of devices, the stateless automatic address configuration (StateLess AddressAuto Configuration, referred to as SLAAC) method is introduced for address configuration, so the process of address, domain name system (Domain Name System, referred to as DNS), and route acquisition is adopted. Route Advertisement (RA for short) + IPv6 Dynamic Host Configuration Protocol version 6 (DHCPv6 for short).

During the process of IPv6 client (IPv6client) obtaining address and network information (routing, DNS, etc.), RA message plays the role of determining the mode of obtaining the address, and the managed address configuration flag (Managed address configuration flag) in RA message , referred to as M bit) and other configuration flags (Other configuration flag, referred to as O bit) values determine what information the device under the IPv6 client needs to obtain through the DHCPv6 process. A complete assignment of addresses and network information can be completed only through the interaction and cooperation of DHCPv6 messages and DHCPv6 messages. In the process of obtaining the address by using RA message + DHCPv6 message, the Route Solicit (RS for short) sent by the IPv6 client is multicast and sent to all routers, and all routers receive the RS message Afterwards, the RA message is sent to all nodes in the LAN, and the IPv6 client selects an RA message according to the arrival order and priority of the RA message, and decides to initiate the DHCPv6 process according to the setting of the M/O bit in the RA message What information is requested, and finally the network configuration is completed through the information obtained in the RA message and the DHCPv6 process.

In some networking, there may be multiple IPv6 servers (IPv6servers) that can communicate directly with IPv6 clients, that is, during the IPv6 address configuration process, there may be multiple routers that can send RA packets to IPv6 Multiple DHCPv6 servers and IPv6 clients perform the DHCPv6 process and generate DHCPv6 packets. At this time, IPv6 clients may use RA packets and DHCPv6 packets in confusion. For example, in network A, IPv6 server 1 and IPv6 server 2 exist, and both IPv6 server 1 and IPv6 server 2 function as routers and DHCPv6 servers, that is, both can send RA packets and DHCPv6 packets. The IPv6 client may use the RA packet sent by IPv6 server 1 and the DHCPv6 packet sent by IPv6 server 2 during IPv6 address configuration. At this time, the IPv6 client may use IPv6 server 1 as the default Obtain the address and DNS information on server 2, which will cause routing failure or detours.

To sum up, when there are multiple DHCPv6 servers and multiple routers on a link, IPv6 clients may use RA packets and DHCPv6 packets confusingly, resulting in routing failure or detours.

Contents of the invention

technical problem

In view of this, the technical problem to be solved by the present invention is that in a network with multiple DHCPv6 servers and multiple routers, the IPv6 client uses RA messages and DHCPv6 messages chaotically to cause routing failure or detours .

solution

In order to solve the above-mentioned technical problems, in a first aspect, the present invention proposes a method for configuring an IPv6 address, including:

The IPv6 client receives the routing broadcast RA message from the router at the IPv6 server end, the RA message includes the server information of the DHCPv6 server at the IPv6 server end, and the server information includes the server address of the DHCPv6 server;

The IPv6 client sends a DHCP request to the DHCPv6 server according to the server address, and the DHCP request includes the information type requested by the IPv6 client to configure;

The IPv6 client performs address configuration according to the DHCP response returned by the DHCPv6 server, and the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client.

With reference to the first aspect, in a first possible implementation manner, the server information further includes a first server identifier, and the DHCP response further includes a second server identifier, and the first server identifier is stored in the router. The server identifier of the DHCPv6 server, the second server identifier is the server identifier of the DHCPv6 server that returns the DHCP response, and the IPv6 client performs address configuration according to the DHCP response returned by the DHCPv6 server, specifically including:

When the first server identifier is the same as the second server identifier, the IPv6 client performs address configuration according to the DHCP response returned by the DHCPv6 server.

In combination with the first aspect or the first possible implementation of the first aspect, in the second possible implementation, before the IPv6 client receives the routing broadcast RA message from the router at the IPv6 server end, it includes:

The IPv6 client sends a routing request RS message to the router, the RS message includes first device domain information, and the RA message also includes second device domain information;

The IPv6 client sends a DHCP request to the DHCPv6 server according to the server address, specifically including:

When the first device domain information is the same as the second device domain information, the IPv6 client sends the DHCP request to the DHCPv6 server according to the server address.

In the second aspect, the present invention proposes a kind of IPv6 address configuration method, comprising:

The router at the IPv6 server end sends a routing broadcast RA message to the IPv6 client, the RA message includes the server information of the DHCPv6 server at the IPv6 server end, and the server information includes the server address of the DHCPv6 server;

The DHCPv6 server receives the DHCP request sent by the IPv6 client according to the server address, and the DHCP request includes the information type requested by the IPv6 client to configure;

The DHCPv6 server sends a DHCP response to the IPv6 client, where the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client.

With reference to the second aspect, in a first possible implementation manner, the server information further includes a first server identifier, the DHCP response further includes a second server identifier, and the first server identifier is stored in the router. The server identifier of the DHCPv6 server, the second server identifier is the server identifier of the DHCPv6 server that returns the DHCP response.

With reference to the first possible implementation of the second aspect, in the second possible implementation, before the router on the IPv6 server side sends the routing advertisement RA message to the IPv6 client, it includes:

The router receives a routing request RS message from the IPv6 client, and the RS message includes first device domain information;

The router at the IPv6 server end sends a routing broadcast RA message to the IPv6 client, specifically including:

When the device domain information stored by the router itself is the same as the first device domain information, the router at the IPv6 server end sends the RA message to the IPv6 client.

In a third aspect, the present invention proposes an IPv6 client, comprising:

A receiving unit, configured to receive a routing broadcast RA message from a router at the IPv6 server end, wherein the RA message includes server information of a DHCPv6 server at the IPv6 server end, and the server information includes a server address of the DHCPv6 server;

A first sending unit, connected to the receiving unit, configured to send a DHCP request to the DHCPv6 server according to the server address, where the DHCP request includes the information type requested by the IPv6 client to configure;

A configuration unit, connected to the first sending unit, configured to perform address configuration according to a DHCP response returned by the DHCPv6 server, where the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client.

With reference to the third aspect, in a first possible implementation manner, the server information further includes a first server identifier, the DHCP response further includes a second server identifier, and the first server identifier is stored in the router. The server identifier of the DHCPv6 server, the second server identifier is the server identifier of the DHCPv6 server that returns the DHCP response, and the configuration unit is also used for:

When the first server identifier is the same as the second server identifier, address configuration is performed according to a DHCP response returned by the DHCPv6 server.

With reference to the third aspect or the first possible implementation of the third aspect, in a second possible implementation, the IPv6 client further includes:

A second sending unit, connected to the receiving unit, configured to send a route request RS message to the router, the RS message includes first device domain information, and the RA message further includes a second device domain information;

The first sending unit is further configured to send the DHCP request to the DHCPv6 server according to the server address when the first device domain information is the same as the second device domain information.

In a fourth aspect, the present invention proposes an IPv6 server, comprising:

A router, configured to send a routing broadcast RA message to the IPv6 client, wherein the RA message includes server information of a DHCPv6 server at the IPv6 server end, and the server information includes a server address of the DHCPv6 server;

A DHCPv6 server, configured to send a DHCP response to the IPv6 client according to the information type requested by the IPv6 client included in the DHCP request, where the DHCP response includes the IPv6 client assigned by the DHCPv6 server configuration information.

With reference to the fourth aspect, in a first possible implementation manner, the server information further includes a first server identifier, where the first server identifier is the server identifier of the DHCPv6 server stored in the router.

With reference to the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the router includes:

A first receiving unit, configured to receive a route request RS message from the IPv6 client, where the RS message includes first device domain information;

A first sending unit, connected to the first receiving unit, configured to send the RA message to the IPv6 client when the device domain information stored by the router itself is the same as the first device domain information.

With reference to the fourth aspect, in a third possible implementation manner, the DHCPv6 server includes:

The second receiving unit is configured to receive a DHCP request sent by the IPv6 client according to the server address, where the DHCP request includes the information type requested by the IPv6 client to configure;

A second sending unit, connected to the second receiving unit, configured to send a DHCP response to the IPv6 client, where the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client.

With reference to the third possible implementation manner of the fourth aspect, in a fourth possible implementation manner, the DHCP response further includes a second server identifier, where the second server identifier is the server identifier of the DHCPv6 server.

The IPv6 address configuration method of the present embodiment includes the DHCPv6 server address in the RA message, and the IPv6 client sends a DHCP request according to the DHCPv6 server address unicast, so that in the case of multiple routes in the same link, the IPv6 client can pass The server address can be routed to the correct DHCPv6 server, and the corresponding DHCP response can be obtained from the correct DHCPv6 server, so the correct routing information can be quickly obtained.

Other features and aspects of the present invention will become apparent from the following detailed description of exemplary embodiments with reference to the accompanying drawings.

Description of drawings

The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the invention and together with the description, serve to explain the principles of the invention.

Fig. 1a shows the flowchart of the IPv6 address configuration method according to Embodiment 1 of the present invention;

FIG. 1b shows a schematic diagram of multi-routing network division according to Embodiment 1 of the present invention;

Fig. 2 shows the flowchart of the IPv6 address configuration method according to Embodiment 2 of the present invention;

Fig. 3 shows the flowchart of the IPv6 address configuration method according to the third embodiment of the present invention;

FIG. 4 shows a flowchart of an IPv6 address configuration method according to Embodiment 4 of the present invention;

FIG. 5 shows a flowchart of an IPv6 address configuration method according to Embodiment 5 of the present invention;

FIG. 6 shows a structural block diagram of an IPv6 client according to Embodiment 6 of the present invention;

FIG. 7 shows a structural block diagram of an IPv6 client according to Embodiment 7 of the present invention;

FIG. 8 shows a structural block diagram of an IPv6 server according to Embodiment 8 of the present invention;

FIG. 9 shows a structural block diagram of an IPv6 server according to Embodiment 9 of the present invention;

FIG. 10 shows a structural block diagram of an IPv6 client according to Embodiment 10 of the present invention;

FIG. 11 shows a structural block diagram of an IPv6 server according to Embodiment 11 of the present invention.

Detailed ways

Various exemplary embodiments, features, and aspects of the invention will be described in detail below with reference to the accompanying drawings. The same reference numbers in the figures indicate functionally identical or similar elements. While various aspects of the embodiments are shown in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration." Any embodiment described herein as "exemplary" is not necessarily to be construed as superior or better than other embodiments.

In addition, in order to better illustrate the present invention, numerous specific details are given in the specific embodiments below. It will be understood by those skilled in the art that the present invention may be practiced without certain of the specific details. In other instances, well-known methods, means, components and circuits are not described in detail so as to highlight the gist of the present invention.

Example 1

Fig. 1a shows a flowchart of a method for configuring an IPv6 address according to Embodiment 1 of the present invention. As shown in Figure 1a, the IPv6 address configuration method mainly includes:

Step 100, the IPv6 client receives a route broadcast RA message from the router at the IPv6 server end, the RA message includes server information of the DHCPv6 server at the IPv6 server end, and the server information includes the server address of the DHCPv6 server.

Specifically, if there are multiple DHCPv6 servers and multiple routers in one link, the DHCPv6 servers and routers can be set on different devices, or they can be set on the same device. The IPv6 server end in the embodiment of the present invention may include a DHCPv6 server and a router. The IPv6 route discovery protocol is composed of two Internet Control Message Protocols (Internet Control Message Protocol, ICMP6) for route request RS and route broadcast RA. The device can communicate with the external network; on the other hand, set the IPv6 address for the IPv6 device just connected to the network according to the gateway or routing information.

In the process of obtaining address and network information (such as routing, DNS, etc.) by the IPv6 client, after the IPv6 client sends a routing request (RS) message to the router on the IPv6 server, the IPv6 client can receive route broadcasts from the router on the IPv6 server (RA) message, and the RA message can play a role in determining the address acquisition mode. The value of the M/O bit in the RA message can determine what information the IPv6 client obtains through the subsequent DHCPv6 process. For example, when the M and O bits are both "1", the DHCPv6 message generated by the DHCPv6 process can be used to assign addresses and other information, such as domain name resolution server addresses and domain search lists; the M bit is "0", and the O bit is When "1", the DHCPv6 message may not be used for allocating addresses, but for allocating other information as above.

During IPv6 address configuration, RA packets and DHCPv6 packets interact to complete the configuration of an address and network information. In the RA message, the server information of the DHCPv6 server may be carried through an extended server option (optionserver), and the server information may include the server address of the DHCPv6 server. In addition, both RS packets and RA packets can be sent by multicast, that is, RS packets can be sent to each router in the network, and an IPv6 client can also receive multiple RA packets. Select an RA message to use based on information such as the order of arrival and priority of the message.

Step 120, the IPv6 client sends a DHCP request to the DHCPv6 server according to the server address, and the DHCP request includes the information type requested by the IPv6 client to configure.

It should be noted that, because the IPv6 client sends a DHCP request to the DHCPv6 server according to the server address, that is, the IPv6 client sends a unicast DHCP request to the DHCPv6 server, which can reduce the multicast flow of DHCPv6 messages on the same link, saving network resources and reduce the network burden.

Step 140, the IPv6 client performs address configuration according to the DHCP response returned by the DHCPv6 server, and the DHCP response includes configuration information assigned by the DHCPv6 server to the IPv6 client.

Specifically, the IPv6 client can obtain the server address of the DHCPv6 server according to the parsing of the RA message, and unicast a DHCP request to the server address of the DHCPv6 server. The DHCP request can include the type of information that the IPv6 client requests to configure, such as: address and network information (routing, DNS), etc. The DHCPv6 server may reply according to the DHCP request, and send a DHCP response to the IPv6 client, where the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client. After receiving the DHCP response, the IPv6 client can complete IPv6 address configuration according to the configuration information therein.

For example, Figure 1b shows a schematic diagram of multi-routing network division. As shown in Figure 1b, when an operator wants to separate its own private network from the Internet (Internet), it can divide the network according to Figure 1b , the server side has Internet and private network entrances respectively. In the same link, IPv6 client_1 can receive the RA message replied by router_1 on the server side according to the RS message, and parse the RA message to obtain the server address of DHCPv6 server_1 corresponding to router_1. The IPv6 client_1 can send a DHCP request to the DHCPv6 server_1, and perform address configuration according to the DHCP response returned by the DHCPv6 server_1. In this way, the Wide Area Network (WAN for short) of the Internet network and the WAN of the WAN management protocol (Tr069 for short) can obtain different default gateways respectively, completely separating the Internet network and the Tr069 network. Among them, Tr069 provides a general framework and protocol for the management and configuration of home network devices in the next generation network, and is used for remote centralized management of gateways, routers, set-top boxes and other devices in the home network from the network side.

In the IPv6 address configuration method of this embodiment, the IPv6 client can obtain the server address of the DHCPv6 server by analyzing the RA message, and send a DHCP request to the DHCPv6 server in unicast according to the server address, so that there are multiple routes in the same link In this case, the IPv6 client can be routed to the correct DHCPv6 server through the server address, and obtain the corresponding DHCP response from the correct DHCPv6 server, so the correct routing information can be quickly obtained.

Example 2

FIG. 2 shows a flowchart of a method for configuring an IPv6 address according to Embodiment 2 of the present invention. Steps in FIG. 2 with the same numbers as those in FIG. 1a have the same functions, and for the sake of brevity, detailed descriptions of these steps are omitted.

As shown in FIG. 2, the IPv6 address configuration method shown in FIG. 2 will be described in detail below only for the parts that are different from those in FIG. 1. For the parts that are the same as those in FIG.

Optionally, the server information may also include a first server ID, and the DHCP response may also include a second server ID, where the first server ID is the server ID of the DHCPv6 server stored in the router, and the second server ID is the DHCPv6 server that returns the DHCP response. The server ID of the server. Step 140 may specifically include:

Step 240, when the first server identifier is the same as the second server identifier, the IPv6 client performs address configuration according to the DHCP response returned by the DHCPv6 server.

Specifically, the network administrator can pre-save a server ID (server id) of a DHCPv6 server in the router, that is, the first server ID, indicating that the DHCPv6 server has a corresponding relationship with the router, and the network administrator can also pre-set the DHCPv6 server A server ID is the second server ID. In this way, after receiving the DHCP response, the IPv6 client can verify the first server identifier and the second server identifier, thereby further ensuring network security. When the first server ID and the second server ID are the same, it indicates that the RA message and the DHCPv6 message are configured in pairs, and the RA message and the DHCPv6 message are not used in confusion, and the address configuration of the IPv6 client can be completed correctly; If it is different from the second server ID, it indicates that the DHCPv6 server that returns the DHCP response does not have a corresponding relationship with the router that sent the RA message. It may be caused by a device that maliciously forges the server address of the DHCPv6 server, and cannot complete the IPv6 client correctly. address configuration.

Optionally, before step 100, it may also include:

Step 200, the IPv6 client sends a routing request RS message to the router, the RS message includes the first device domain information, and the RA message further includes the second device domain information.

Step 120 may specifically include:

Step 220, when the first device domain information is the same as the second device domain information, the IPv6 client sends the DHCP request to the DHCPv6 server according to the server address.

Specifically, when configuring the IPv6 address, the IPv6 client may first multicast the RS message to the router at the IPv6 server end, that is, send it to each router. The RS message may include the first device domain information, that is, the device domain information where the IPv6 client is located. Among them, the device domain can be set by the network administrator in advance according to the information such as the function type of the IPv6 client and the area where the IPv6 client is located. By introducing the information of the device domain, it is convenient for the network administrator to manage the network (such as the company's internal LAN). The router at the IPv6 server end can compare the first device domain information with the device domain information of the router itself, and if the two kinds of device domain information are the same, the router can send an RA message for the IPv6 client.

In a multi-router network, after the router on the IPv6 server side verifies that the device domain information saved by itself is the same as the first device domain information included in the RS packet, the router can send an RA packet to the IPv6 client. At this time, the There are multiple routers sending RA packets to IPv6 clients. The IPv6 client may respectively check whether the second device domain information included in these RA messages is the same as the first device domain information. If they are the same, the IPv6 client can parse the RA message to obtain the server address and the first server identifier of the DHCPv6 server, and send a DHCP request to the DHCPv6 server according to the server address of the DHCPv6 server; if not, the IPv6 client can send a request to the IPv6 server again The router at the end sends the RS message, and continues to re-execute the address configuration process of the IPv6 client from step 100.

It should be noted that by checking the first device domain information and the second device domain information, one RA message can be determined among multiple returned RA messages, and it is no longer necessary to check the order or priority of the RA messages. and other information to select RA packets, reducing the burden on routers and networks.

For example, referring to the related description shown in FIG. 1b and Embodiment 1, in the same link, if the first device domain information included in the RS received by the router_1 on the server side from the IPv6 client_1 is the same as that of the router The device domain information saved by _1 itself is the same, and router_1 can reply RA to IPv6 client _1. The RA also includes the first server identifier stored in the router_1 and the server address of the DHCPv6 server_1, and the IPv6 client_1 can unicast send a DHCP request to the DHCPv6 server_1. If the first server ID saved in the router_1 is the same as the second server ID of the DHCPv6 server_1, the IPv6 client_1 can perform address configuration according to the DHCP response returned by the DHCPv6 server_1. Pre-dividing different device domain information allows the wide area network (WAN) of the Internet and the WAN of Tr069 to obtain different default gateways respectively, completely separating the Internet and the Tr069 network.

In the IPv6 address configuration method of this embodiment, by introducing the first device domain information and the second device domain information, one RA message can be selected from multiple RA messages replied by multiple routers, and no longer needs to be based on the RA message. Information such as arrival order or priority selects the RA message, which reduces the burden on the router and the network; through the verification of the first server ID and the second server ID, the security of the network can be ensured.

Example 3

FIG. 3 shows a flowchart of a method for configuring an IPv6 address according to Embodiment 3 of the present invention. As shown in Figure 3, the IPv6 address configuration method mainly includes:

Step 300, the router at the IPv6 server end sends a routing broadcast RA message to the IPv6 client, the RA message includes server information of the DHCPv6 server at the IPv6 server end, and the server information includes the server address of the DHCPv6 server.

Specifically, during the process of the IPv6 client acquiring address and network information (such as routing, DNS, etc.), the router at the IPv6 server end can send a route broadcast RA message to the IPv6 client end, and the RA message includes the IP address of the DHCPv6 server at the IPv6 server end. Server information, the server information may include the server address of the DHCPv6 server, which is used to send a DHCP request to the DHCPv6 server in a unicast manner to realize the paired configuration of the RA message and the DHCPv6 message, and correctly configure the IPv6 address.

Step 320, the DHCPv6 server at the IPv6 server side receives the DHCP request sent by the IPv6 client according to the server address, and the DHCP request includes the information type requested by the IPv6 client to configure.

Step 340, the DHCPv6 server sends a DHCP response to the IPv6 client, where the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client.

Specifically, referring to the relevant description of the IPv6 address configuration method in Embodiment 1, the DHCPv6 server on the IPv6 server side can receive the DHCP request sent by the IPv6 client according to the server address of the DHCPv6 server, and the DHCPv6 server can further configure the IPv6 address according to the IPv6 address included in the DHCP request. The type of information requested by the client is to assign configuration information to the IPv6 client, and to send a DHCP response to the IPv6 client. The DHCP response includes the configuration information assigned by the DHCPv6 server to the IPv6 client, which is used by the subsequent IPv6 client according to the above configuration information. Complete the IPv6 address configuration.

For example, referring to the related description shown in Figure 1b and Embodiment 1, in the same link, the router_1 at the server end can send an RA message to the IPv6 client_1, and the DHCPv6 server_1 at the server end can receive the IPv6 client Client_1 sends a DHCP request, and assigns configuration information to IPv6 client_1 according to the type of information configured in the IPv6 client_1 request included in the DHCP request, and returns a DHCP response to IPv6 client_1 for the IPv6 client _1 for address configuration. In this way, the wide area network (WAN) of the Internet and the WAN of Tr069 can obtain different default gateways respectively, completely separating the Internet and the Tr069 network.

In the IPv6 address configuration method of the present embodiment, the router at the IPv6 server end sends an RA message including the server address of the DHCPv6 server to the IPv6 client, the DHCPv6 server receives the DHCP request, and the DHCPv6 server distributes required configuration information for the IPv6 client according to the DHCP request , so that in the case of multiple routes on the same link, the IPv6 client can be routed to the correct DHCPv6 server through the server address, and the correct DHCPv6 server receives the DHCP request and distributes configuration information, so the correct routing information can be obtained quickly.

Example 4

FIG. 4 shows a flowchart of a method for configuring an IPv6 address according to Embodiment 4 of the present invention. Steps in FIG. 4 with the same numbers as those in FIG. 3 have the same functions, and for the sake of brevity, detailed descriptions of these steps are omitted.

As shown in FIG. 4, the IPv6 address configuration method shown in FIG. 4 will be described in detail below only for the parts that are different from those in FIG. 3. For the parts that are the same as those in FIG.

Optionally, the server information may also include a first server ID, and the DHCP response may also include a second server ID, where the first server ID is the server ID of the DHCPv6 server stored in the router, and the second server ID is the DHCPv6 server that returns the DHCP response. The server ID of the server. The first server identifier and the second server identifier can be used to verify the DHCPv6 server, avoid harm caused by a certain device maliciously forging the server address of the DHCPv6 server, and ensure network security.

Before step 300, it may also include:

Step 400, the router receives a routing request RS packet from the IPv6 client, and the RS packet includes first device domain information.

Step 300 may specifically include:

Step 420, when the device domain information saved by the router itself is the same as the first device domain information, the router at the IPv6 server end sends the RA message to the IPv6 client.

Specifically, before the router at the IPv6 server end sends the RA message to the IPv6 client, it can receive the RS message from the IPv6 client, and the RS message includes the first device domain information, that is, the device domain information where the IPv6 client is located, wherein , the device domain can be pre-set by the network administrator based on information such as the function type of the IPv6 client and the area where the IPv6 client is located. After receiving the RS message, the router does not directly reply the RA message, but may check the device domain information to determine whether the first device domain information is the same as the device domain information stored by the router itself. If same, execute step 420, send RA message to IPv6 client, can include the server address of DHCPv6 server and the first server identification in RA message; If different, can not continue to carry out the address configuration process of IPv6 client, need wait for IPv6 client The end resends the RS message to the router. By verifying the first device domain information and the device domain information saved by the router itself, the number of routers replying RA messages in the networking can be reduced, the number of RA messages in the network can be reduced, and the burden on the routers and the network can be reduced.

For example, referring to the related description shown in FIG. 1b and Embodiment 1, in the same link, the router_1 at the server end can receive the RS message sent by the IPv6 client_1, and the router_1 includes in the RS message When the first device domain information of router_1 is the same as the device domain information saved by router_1, it sends an RA message to IPv6 client_1, and the DHCPv6 server_1 on the server side can receive IPv6 client_1 according to the information in the RA message. The DHCP request sent by the server address of DHCPv6 server_1, and assign configuration information to IPv6 client_1 according to the information type of IPv6 client_1 request configuration included in the DHCP request, and return a DHCP response to IPv6 client_1, For address configuration of IPv6 client_1. In this way, the wide area network (WAN) of the Internet and the WAN of Tr069 can obtain different default gateways respectively, completely separating the Internet and the Tr069 network.

In the IPv6 address configuration method of this embodiment, by checking the first device domain information and the device domain information saved by the router itself, only some routers at the IPv6 server end can reply RA messages to the IPv6 client, which can reduce the RA in the network. packets, reducing the burden on routers and networks.

Example 5

FIG. 5 shows a flowchart of a method for configuring an IPv6 address according to Embodiment 5 of the present invention. As shown in Figure 5, the IPv6 address configuration method mainly includes:

Step 501, the IPv6 client sends an RS packet to the router at the IPv6 server end, and the RS packet includes first device domain information.

Specifically, when an IPv6 client sends an RS message to a router, it belongs to multicast sending, and is sent to all routers on the same link in the networking.

Step 502, the router receives the RS packet from the IPv6 client.

Specifically, all routers on the same link in the networking can receive the RS message from the IPv6 client, and the RS message includes the first device domain information, that is, the device domain information where the IPv6 client is located, wherein the device domain can be It is pre-set by the network administrator according to the function type of the IPv6 client and the area where the IPv6 client is located.

Step 503, the router checks whether the device domain information stored by the router itself is the same as the first device domain information;

Step 504, when the device domain information saved by the router itself is the same as the first device domain information, the router sends an RA message to the IPv6 client, the RA message includes the server information of the DHCPv6 server at the IPv6 server end, the The server information includes the server address and the first server identifier of the DHCPv6 server.

Specifically, after receiving the RS message, all routers do not directly reply the RA message, but may respectively check the device domain information to determine whether the first device domain information is the same as the device domain information saved by the router itself. If the device domain information saved by the router itself is the same as the first device domain, the router can send an RA message to the IPv6 client, and the RA message includes the server information of the DHCPv6 server; The device domain information is different from the first device domain information, does not send the RA message to the IPv6 client, and waits for the IPv6 client to resend the RS message.

It should be noted that by introducing device domain information and performing verification, only some routers in a multi-router network can send RA packets to IPv6 clients, reducing the number of RA packets in the network. The first server identifier is the server identifier of the DHCPv6 server stored in the router.

Step 505, the IPv6 client receives the RA message from the router, and the RA message also carries the second device domain information, and checks whether the first device domain information is the same as the second device domain information;

Step 506, when the first device domain information is the same as the second device domain information, the IPv6 client parses the RA message to obtain the server address and the first server identifier of the DHCPv6 server;

Specifically, the second device domain information is the device domain information carried in the returned RA message, which may be preset by the network administrator. By checking whether the first device domain information is the same as the second device domain information, one RA message can be determined from multiple RA messages, and it is no longer necessary to select an RA message based on information such as the arrival order or priority of the RA message. text, reducing the burden on routers and networks.

Step 507: Send a DHCP request to the DHCPv6 server according to the server address, and the DHCP request includes the information type requested by the IPv6 client to configure.

Specifically, the IPv6 client can parse the server information in the RA message to obtain the server address of the DHCPv6 server. According to the server address, it can determine which DHCPv6 server to send the DHCP request to on the same link in the multi-routing network, and the multicast The flow becomes a unicast flow, which can reduce the multicast flow of DHCPv6 packets on the same link, saving network resources and lightening the network load.

Step 508, the DHCPv6 server receives the DHCP request, and distributes the required configuration information according to the information type requested for configuration in the DHCP request;

Step 509, the DHCPv6 server sends a DHCP response to the IPv6 client, and the DHCP response includes configuration information and a second server identifier allocated by the DHCPv6 server to the IPv6 client.

Specifically, the DHCPv6 server may allocate configuration information to the IPv6 client according to the type of information that the IPv6 client needs to configure indicated in the DHCP request, and notify the IPv6 client in the form of a DHCP response. Wherein, the second server identifier is the server identifier of the DHCPv6 server that returns the DHCP response.

Step 510, when the first server ID is the same as the second server ID, the IPv6 client configures the IPv6 address according to the configuration information.

Specifically, by configuring and verifying the first server ID and the second server ID, the harm caused by a certain device maliciously forging the server address of the DHCPv6 server can be avoided, and the security of the network can be ensured.

In the IPv6 address configuration method of this embodiment, the IPv6 client can obtain the server address of the DHCPv6 server by analyzing the RA message sent by the router, and send a DHCP request to the DHCPv6 server in unicast according to the server address, so that in the same link In the case of multiple routes, the IPv6 client can be routed to the correct DHCPv6 server through the server address, and obtain the corresponding DHCP response from the correct DHCPv6 server, so that the correct routing information can be quickly obtained; by identifying the first server ID and the second The verification of the server ID can ensure the security of the network; through the verification of the device domain information, the number of RA messages in the network can be reduced, and it is no longer necessary to select RA messages based on the arrival order or priority of RA messages , reducing the burden on routers and networks.

Embodiment six

FIG. 6 shows a structural block diagram of an IPv6 client according to Embodiment 6 of the present invention. As shown in Figure 6, the IPv6 client 500 includes:

The receiving unit 520 is configured to receive a routing broadcast RA message from a router at the IPv6 server end, the RA message includes server information of a DHCPv6 server at the IPv6 server end, and the server information includes a server address of the DHCPv6 server.

Specifically, during the process of the IPv6 client 500 acquiring address and network information (such as routing, DNS, etc.), after the IPv6 client 500 sends a routing request (RS) message to the router at the IPv6 server end, the receiving unit 520 can receive the information from the IPv6 server The router at the end receives the Router Advertisement (RA) message, and the RA message can play a role in determining the address acquisition mode. The value of the M/O bit of the RA message may determine what information the IPv6 client 500 obtains through the subsequent DHCPv6 process. For example, when the M and O bits are both "1", the DHCPv6 message generated by the DHCPv6 process can be used to configure addresses and other information, such as domain name resolution server addresses and domain search lists; the M bit is "0", and the O bit is When "1", the DHCPv6 packet can not be used to assign addresses, but to assign other information for configuration.

During IPv6 address configuration, RA packets and DHCPv6 packets interact to complete the configuration of an address and network information. Wherein, in the RA message received by the receiving unit 520, the server information of the DHCPv6 server may be carried through an extended server option (option server), and the server information may include the server address of the DHCPv6 server. In addition, both the RS message and the RA message can be sent by multicast, that is, the RS message can be sent to each router in the network, and the IPv6 client 500 can also receive multiple RA messages, and the IPv6 client 500 can Information such as the arrival order and priority of the packets selects an RA packet to use.

The first sending unit 540 is connected to the receiving unit 520, and is configured to send a DHCP request to the DHCPv6 server according to the server address, and the DHCP request includes the information type requested by the IPv6 client to configure.

It should be noted that, since the first sending unit 540 sends a DHCP request to the DHCPv6 server according to the server address, that is, the IPv6 client sends a unicast DHCP request to the DHCPv6 server through the first sending unit 540, which can reduce the number of DHCPv6 packets on the same link. Text multicast stream, saving network resources and reducing network burden.

The configuration unit 560 is connected to the first sending unit 540 and configured to perform address configuration according to the DHCP response returned by the DHCPv6 server, where the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client.

Specifically, according to the server address of the DHCPv6 server that the IPv6 client 500 can obtain by parsing the RA message, the first sending unit 540 can send a DHCP request to the DHCPv6 server in a unicast manner according to the server address, and the DHCP request can include the IPv6 client 500 The type of information requested for configuration, for example: address and network information (routing, DNS), etc. The DHCPv6 server at the IPv6 server side can determine which information needs to be allocated for the IPv6 client 500 according to the DHCP request, and the configuration unit 560 of the IPv6 client 500 can perform IPv6 address configuration according to the configuration information in the returned DHCP response.

For example, Figure 1b shows a schematic diagram of multi-routing network division. As shown in Figure 1b, when an operator wants to separate its own private network from the Internet (Internet), it can divide the network according to Figure 1b , the server side has Internet and private network entrances respectively. In the same link, IPv6 client_1 can receive the RA message replied by router_1 on the server side according to the RS message, and parse the RA message to obtain the server address of DHCPv6 server_1 corresponding to router_1. The IPv6 client_1 can send a DHCP request to the DHCPv6 server_1, and perform address configuration according to the DHCP response returned by the DHCPv6 server_1. In this way, the Wide Area Network (WAN for short) of the Internet network and the WAN of the WAN management protocol (Tr069 for short) can obtain different default gateways respectively, completely separating the Internet network and the Tr069 network. Among them, Tr069 provides a general framework and protocol for the management and configuration of home network devices in the next generation network, and is used for remote centralized management of gateways, routers, set-top boxes and other devices in the home network from the network side.

In the IPv6 address configuration method of the present embodiment, the IPv6 client can obtain the server address of the DHCPv6 server by analyzing the RA message received by the receiving unit, and the first sending unit sends a DHCP request in unicast to the DHCPv6 server according to the server address, so that In the case of multiple routes on the same link, the IPv6 client can be routed to the correct DHCPv6 server through the server address, and obtain the corresponding DHCP response from the correct DHCPv6 server, so the correct routing information can be obtained quickly.

Embodiment seven

FIG. 7 shows a structural block diagram of an IPv6 client according to Embodiment 7 of the present invention. Components with the same numbers in FIG. 7 as those in FIG. 6 have the same functions, and for the sake of brevity, detailed descriptions of these components are omitted.

As shown in FIG. 7 , the IPv6 client shown in FIG. 7 will be described in detail below only for the parts different from those in FIG. 6 . For the same parts as in FIG.

Optionally, the server information may also include a first server ID, and the DHCP response may also include a second server ID, where the first server ID is the server ID of the DHCPv6 server stored in the router, and the second server ID is the DHCPv6 server that returns the DHCP response. The server ID of the server.

The configuration unit 560 is further configured to perform address configuration according to the DHCP response returned by the DHCPv6 server when the first server identifier is the same as the second server identifier.

Specifically, the network administrator can pre-save a server ID (server id) of a DHCPv6 server in the router, that is, the first server ID, indicating that the DHCPv6 server has a corresponding relationship with the router, and the network administrator can pre-set a DHCPv6 server. The server identifier is the second server identifier. In this way, after receiving the DHCP response, the IPv6 client can verify the first server identifier and the second server identifier, thereby further ensuring network security. When the first server ID and the second server ID are the same, it indicates that the RA message and the DHCPv6 message are configured in pairs, and the RA message and the DHCPv6 message are not used in confusion, and the address configuration of the IPv6 client can be completed correctly; If it is different from the second server ID, it indicates that the DHCPv6 server that returns the DHCP response does not correspond to the router that sends the RA packet, which may be caused by a device maliciously forging the server address of the DHCPv6 server.

Specifically, the IPv6 client 600 may also include:

The second sending unit 620 is connected to the receiving unit 520, and is configured to send a route request RS message to the router, the RS message includes the first device domain information, and the RA message also includes the second device domain information;

The first sending unit 540 is further configured to send the DHCP request to the DHCPv6 server according to the server address when the first device domain information is the same as the second device domain information.

Specifically, when the IPv6 client 600 configures the IPv6 address, the second sending unit 620 may first multicast the RS message to routers at the IPv6 server end, that is, send it to each router. The RS packet includes the first device domain information, that is, the device domain information where the IPv6 client 600 is located. Among them, the device domain can be pre-set by the network administrator according to the information such as the function type of the IPv6 client 600 and the area where the IPv6 client 600 is located. By introducing the device domain information, it is convenient for the network administrator to manage the network such as the company's internal LAN. The router at the IPv6 server end can compare the first device domain information with the device domain information of the router itself, and if the above two kinds of device domain information are the same, the router can send an RA message for the IPv6 client 600 .

In a multi-routing network, after the router at the IPv6 server side checks that the device domain information stored by itself is the same as the first device domain information included in the RS message, the router can send an RA message to the IPv6 client 600. At this time, There may be multiple routers sending RA packets to IPv6 clients. The IPv6 client may respectively check whether the second device domain information included in the RA messages is the same as the first device domain information, where the second device domain information is the device domain information of the router sending the RA message. If the same, the IPv6 client 600 can parse the RA message to obtain the server address and the first server identification of the DHCPv6 server, and the first sending unit 540 can send a DHCP request to the DHCPv6 server according to the server address of the DHCPv6 server; if not the same, the second The sending unit 620 may resend the RS message to the router at the IPv6 server end.

It should be noted that by checking the first device domain information and the second device domain information, one RA message can be determined among multiple returned RA messages, and it is no longer necessary to check the arrival order or priority of the RA messages. and other information to select RA packets, reducing the burden on routers and networks.

The IPv6 client of this embodiment, by introducing the first device domain information and the second device domain information, can select an RA message from multiple RA messages replied by multiple routers to use, and no longer needs to use the RA message according to the arrival of the RA message. The information such as sequence or priority selects the RA message, which reduces the burden on the router and the network; by verifying the first server ID and the second server ID, the security of the network can be ensured.

Example 8

FIG. 8 shows a structural block diagram of an IPv6 server according to Embodiment 8 of the present invention. As shown in Figure 8, the IPv6 server 700 may specifically include:

The router 720 is configured to send a routing broadcast RA message to the IPv6 client, where the RA message includes server information of the DHCPv6 server at the IPv6 server end, and the server information includes the server address of the DHCPv6 server.

Specifically, during the process of the IPv6 client acquiring address and network information (such as routing, DNS, etc.), the router 720 of the IPv6 server 700 can send a routing broadcast RA message to the IPv6 client, and the RA message includes the address and network information of the IPv6 server 700. The server information of the DHCPv6 server 740, which can include the server address of the DHCPv6 server 740 in the server information, is used to send a DHCP request to the DHCPv6 server 740 in unicast, realizes the paired configuration of the RA message and the DHCPv6 message, and correctly performs IPv6 address configuration.

The DHCPv6 server 740 is configured to send a DHCP response to the IPv6 client according to the information type requested by the IPv6 client included in the DHCP request, and the DHCP response includes the DHCPv6 server assigning the IPv6 client to the IPv6 client. configuration information.

Specifically, referring to the relevant description of the IPv6 address configuration method in Embodiment 1, the DHCPv6 server 740 of the IPv6 server 700 can receive the DHCP request sent by the IPv6 client according to the server address of the DHCPv6 server 740, and the DHCPv6 server 740 can further configure the address according to the DHCP The information type of the IPv6 client request configuration included in the request is to allocate the required configuration information for the IPv6 client, and send a DHCP response to the IPv6 client, which includes the configuration information assigned by the DHCPv6 server 740 for the IPv6 client, for Subsequent IPv6 clients complete IPv6 address configuration according to the above configuration information.

For specific examples, reference may be made to FIG. 1 b , and related descriptions in Embodiment 3 and Embodiment 4.

In the IPv6 server of this embodiment, the router at the IPv6 server end sends the RA message comprising the server address of the DHCPv6 server to the IPv6 client, and the DHCPv6 server receives the DHCP request, and the DHCPv6 server distributes required configuration information for the IPv6 client according to the DHCP request, so that In the case of multiple routes on the same link, the IPv6 client can be routed to the correct DHCPv6 server through the server address, and obtain the corresponding DHCP response from the correct DHCPv6 server, so the correct routing information can be obtained quickly.

Example 9

FIG. 9 shows a structural block diagram of an IPv6 server according to Embodiment 9 of the present invention. Components with the same numbers in FIG. 9 as those in FIG. 8 have the same functions, and for the sake of brevity, detailed descriptions of these components are omitted.

As shown in FIG. 9, the IPv6 server shown in FIG. 9 will only be described in detail below for the parts different from those in FIG. 8. For the same parts as in FIG.

Optionally, the server information may also include a first server ID, and the DHCP response may also include a second server ID, where the first server ID is the server ID of the DHCPv6 server stored in the router, and the second server ID is the DHCPv6 server that returns the DHCP response. The server ID of the server. The first server identifier and the second server identifier can be used by the IPv6 client to verify the DHCPv6 server, avoid harm caused by a certain device maliciously forging the server address of the DHCPv6 server, etc., and ensure network security.

The router 720 may specifically include:

The first receiving unit 820 is configured to receive a route request RS packet from the IPv6 client, where the RS packet includes first device domain information.

Specifically, before the router 720 of the IPv6 server 800 sends the RA message to the IPv6 client, the first receiving unit 820 can receive the RS message from the IPv6 client, and the RS message includes the first device domain information, that is, the IPv6 client Information about the device domain where the device domain is located. The device domain can be set in advance by the network administrator according to the function type of the IPv6 client and the area where the IPv6 client is located. manage.

A first sending unit 840, connected to the first receiving unit 820, configured to send the RA to the IPv6 client when the device domain information stored by the router itself is the same as the first device domain information message.

Specifically, the RS message received by the first receiving unit 820 from the IPv6 client includes the first device domain information, and the router 720 does not directly reply to the RA message after receiving the RS message, but may perform the device domain information Checking, judging whether the first device domain information is the same as the device domain information saved by the router 720 itself. If they are the same, the first sending unit 840 can send an RA message to the IPv6 client, and the RA message includes the server address of the DHCPv6 server 740 and the first server identification; if different, the first receiving unit 820 receives the RS from the IPv6 client again. message.

For specific examples, reference may be made to FIG. 1 b , and related descriptions in Embodiment 3 and Embodiment 4.

Further, the DHCPv6 server 740 may specifically include:

The second receiving unit 860 is configured to receive a DHCP request sent by the IPv6 client according to the server address, where the DHCP request includes the information type requested by the IPv6 client to configure;

The second sending unit 880 is connected to the second receiving unit 860, and is configured to send a DHCP response to the IPv6 client, where the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client.

Specifically, referring to the relevant description of the IPv6 address configuration method in Embodiment 3, the second receiving unit 860 can receive the DHCP request sent by the IPv6 client according to the server address of the DHCPv6 server 740, and the DHCPv6 server 740 can further include The information type of the IPv6 client request configuration is that the IPv6 client assigns configuration information, and the second sending unit 880 sends a DHCP response to the IPv6 client, which includes the configuration information and the second server's configuration information assigned by the DHCPv6 server 740 for the IPv6 client in the DHCP response. logo. The second server identifier can be used for verification by the IPv6 client in the eighth embodiment, so that the IPv6 address configuration process is more secure.

In the IPv6 server of this embodiment, by checking the first device domain information and the device domain information saved by the router itself, only some routers at the IPv6 server end can reply the RA message to the IPv6 client through the first sending unit, which can reduce network traffic. The RA message in the packet reduces the burden on the router and the network.

Example 10

FIG. 10 shows a structural block diagram of an IPv6 client according to Embodiment 10 of the present invention. The IPv6 client 900 may be a host server with computing capabilities, a personal computer PC, or a portable portable computer or terminal. The specific embodiments of the present invention do not limit the specific implementation of the computing nodes.

The IPv6 client 900 includes a processor (processor) 910, a communication interface (Communications Interface) 920, a memory (memory array) 930 and a bus 940. Wherein, the processor 910 , the communication interface 920 , and the memory 930 communicate with each other through the bus 940 .

The communication interface 920 is used for communicating with network elements, where the network elements include, for example, a virtual machine management center, shared storage, and the like.

The processor 910 is used to execute programs. The processor 910 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention.

The memory 930 is used to store files. The memory 930 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one disk memory. Memory 930 may also be a memory array. The memory 930 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules.

In a possible implementation manner, the above program may be a program code including computer operation instructions.

The IPv6 client can receive the routing broadcast RA message from the router at the IPv6 server end through the communication interface 920, and store it in the memory 930. The RA message includes the server information of the DHCPv6 server at the IPv6 server end, and the server information includes including the server address of the DHCPv6 server;

The processor 910 of the IPv6 client can parse the RA message to obtain the server address, and send a DHCP request to the DHCPv6 server through the communication interface 920 according to the server address, and the DHCP request includes the configuration requested by the IPv6 client. type of information;

The IPv6 client can receive the DHCP response returned by the DHCPv6 server through the communication interface 920, and the processor 910 can perform address configuration according to the DHCP response, and the DHCP response includes the address assigned by the DHCPv6 server to the IPv6 client. configuration information.

In a possible implementation manner, the server information stored in the memory 930 further includes a first server identifier, and the DHCP response further includes a second server identifier, and the first server identifier is stored in the router 930. The server identifier of the DHCPv6 server, the second server identifier is the server identifier of the DHCPv6 server that returns the DHCP response, and the processor 910 of the IPv6 client performs address configuration according to the DHCP response returned by the DHCPv6 server, specifically including :

When the first server identifier is the same as the second server identifier, the processor 910 of the IPv6 client performs address configuration according to the DHCP response returned by the DHCPv6 server.

In a possible implementation manner, before the IPv6 client receives the routing broadcast RA message from the router at the IPv6 server end through the communication interface 920, it includes:

The IPv6 client sends a routing request RS message to the router through the communication interface 920, the RS message includes the first device domain information, and the RA message also includes the second device domain information;

The processor 910 of the IPv6 client sends a DHCP request to the DHCPv6 server according to the server address, specifically including:

When the first device domain information is the same as the second device domain information, the processor 910 of the IPv6 client resolves to obtain the server address of the DHCPv6 server, and communicates to the DHCPv6 server through the communication interface 920 according to the server address. The DHCPv6 server sends the DHCP request.

Example 11

FIG. 11 shows a structural block diagram of an IPv6 server according to Embodiment 11 of the present invention. The IPv6 server 1000 may be a host server with computing capabilities, a personal computer PC, or a portable portable computer or terminal. The specific embodiments of the present invention do not limit the specific implementation of the computing nodes.

The IPv6 server end may include a router and a DHCPv6 server, and both the router and the DHCPv6 server may include a processor (processor) 1010, a communication interface (CommunicationsInterface) 1020, a memory (memory array) 1030 and a bus 1040. Wherein, the processor 1010 , the communication interface 1020 , and the memory 1030 communicate with each other through the bus 1040 .

The communication interface 1020 is used for communicating with network elements, where the network elements include, for example, a virtual machine management center, shared storage, and the like.

The processor 1010 is used to execute programs. The processor 1010 may be a central processing unit CPU, or an Application Specific Integrated Circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention.

The storage 1030 is used to store files. The memory 1030 may include a high-speed RAM memory, and may also include a non-volatile memory (non-volatile memory), such as at least one magnetic disk memory. Memory 1030 may also be a memory array. The storage 1030 may also be divided into blocks, and the blocks may be combined into virtual volumes according to certain rules.

In a possible implementation manner, the above program may be a program code including computer operation instructions.

The router at the IPv6 server end sends a routing broadcast RA message to the IPv6 client through the communication interface 1020, and stores it in the memory 1030. The RA message includes the server information of the DHCPv6 server at the IPv6 server end, and the server information includes the The server address of the DHCPv6 server;

The DHCPv6 server at the IPv6 server end receives the DHCP request sent by the IPv6 client according to the server address through the communication interface 1020, and the DHCP request includes the information type requested by the IPv6 client to configure;

The DHCPv6 server sends a DHCP response to the IPv6 client through the communication interface 1020, and the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client.

In a possible implementation manner, the server information stored in the memory 1030 further includes a first server identifier, and the DHCP response further includes a second server identifier, and the first server identifier is stored in the router memory 1030. The server identifier of the DHCPv6 server, the second server identifier is the server identifier of the DHCPv6 server that returns the DHCP response.

In a possible implementation manner, before the router at the IPv6 server end sends the routing broadcast RA message to the IPv6 client, it includes:

The router receives a routing request RS message from the IPv6 client through the communication interface 1020, and the RS message includes first device domain information;

The router at the IPv6 server end sends a routing broadcast RA message to the IPv6 client through the communication interface 1020, specifically including:

When the device domain information stored by the router itself is the same as the first device domain information, the router at the IPv6 server end sends the RA message to the IPv6 client through the communication interface 1020 .

Those of ordinary skill in the art can appreciate that each exemplary unit and algorithm steps in the embodiments described herein can be implemented by electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in the form of hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art may choose different methods to implement the described functions for specific applications, but such implementations should not be considered as exceeding the scope of the present invention.

If the functions are implemented in the form of computer software and sold or used as an independent product, it can be considered that all or part of the technical solution of the present invention (such as the part that contributes to the prior art) is In the form of computer software products. The computer software product is usually stored in a computer-readable storage medium, and includes several instructions to enable a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the embodiments of the present invention. The aforementioned storage media include various media that can store program codes such as U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), magnetic disk or optical disk.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Anyone skilled in the art can easily think of changes or substitutions within the technical scope disclosed in the present invention. Should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (14)

1. A kind of IPv6 address configuration method, it is characterized in that, comprising: The IPv6 client receives the routing broadcast RA message from the router at the IPv6 server end, the RA message includes the server information of the DHCPv6 server at the IPv6 server end, and the server information includes the server address of the DHCPv6 server; The IPv6 client sends a DHCP request to the DHCPv6 server according to the server address, and the DHCP request includes the information type requested by the IPv6 client to configure; The IPv6 client performs address configuration according to the DHCP response returned by the DHCPv6 server, and the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client. 2. The IPv6 address configuration method according to claim 1, wherein the server information also includes a first server identification, and the DHCP response also includes a second server identification, and the first server identification is the The server identifier of the DHCPv6 server stored in the router, the second server identifier is the server identifier of the DHCPv6 server that returns the DHCP response, The IPv6 client performs address configuration according to the DHCP response returned by the DHCPv6 server, specifically including: When the first server identifier is the same as the second server identifier, the IPv6 client performs address configuration according to the DHCP response returned by the DHCPv6 server. 3. according to claim 1 and 2 described IPv6 address configuration methods, it is characterized in that, before described IPv6 client receives the route broadcast RA message from the router of IPv6 server end, comprises: The IPv6 client sends a routing request RS message to the router, the RS message includes first device domain information, and the RA message also includes second device domain information; The IPv6 client sends a DHCP request to the DHCPv6 server according to the server address, specifically including: When the first device domain information is the same as the second device domain information, the IPv6 client sends the DHCP request to the DHCPv6 server according to the server address. 4. A method for configuring an IPv6 address, comprising: The router at the IPv6 server end sends a routing broadcast RA message to the IPv6 client, the RA message includes the server information of the DHCPv6 server at the IPv6 server end, and the server information includes the server address of the DHCPv6 server; The DHCPv6 server receives the DHCP request sent by the IPv6 client according to the server address, and the DHCP request includes the information type requested by the IPv6 client to configure; The DHCPv6 server sends a DHCP response to the IPv6 client, where the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client. 5. The IPv6 address configuration method according to claim 4, wherein the server information also includes a first server identification, and the DHCP response also includes a second server identification, and the first server identification is the The server identifier of the DHCPv6 server stored in the router, and the second server identifier is the server identifier of the DHCPv6 server that returns the DHCP response. 6. according to claim 4 or the described IPv6 address configuration method of 5, it is characterized in that, before the router of described IPv6 server end sends routing broadcast RA message to IPv6 client, comprises: The router receives a routing request RS message from the IPv6 client, and the RS message includes first device domain information; The router at the IPv6 server end sends a routing broadcast RA message to the IPv6 client, specifically including: When the device domain information stored by the router itself is the same as the first device domain information, the router at the IPv6 server end sends the RA message to the IPv6 client. 7. An IPv6 client, characterized in that, comprising: A receiving unit, configured to receive a routing broadcast RA message from a router at the IPv6 server end, wherein the RA message includes server information of a DHCPv6 server at the IPv6 server end, and the server information includes a server address of the DHCPv6 server; A first sending unit, connected to the receiving unit, configured to send a DHCP request to the DHCPv6 server according to the server address, where the DHCP request includes the information type requested by the IPv6 client to configure; A configuration unit, connected to the first sending unit, configured to perform address configuration according to a DHCP response returned by the DHCPv6 server, where the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client. 8. The IPv6 client according to claim 7, wherein the server information also includes a first server ID, and the DHCP response also includes a second server ID, and the first server ID is the router ID The server identification of the DHCPv6 server saved in the , the second server identification is the server identification of the DHCPv6 server that returns the DHCP response, and the configuration unit is also used for: When the first server identifier is the same as the second server identifier, address configuration is performed according to the DHCP response returned by the DHCPv6 server. 9. The IPv6 client according to claim 7 or 8, further comprising: A second sending unit, connected to the receiving unit, configured to send a route request RS message to the router, the RS message includes first device domain information, and the RA message further includes a second device domain information; The first sending unit is further configured to send the DHCP request to the DHCPv6 server according to the server address when the first device domain information is the same as the second device domain information. 10. An IPv6 server, characterized in that, comprising: A router, configured to send a routing broadcast RA message to the IPv6 client, wherein the RA message includes server information of a DHCPv6 server at the IPv6 server end, and the server information includes a server address of the DHCPv6 server; A DHCPv6 server, configured to send a DHCP response to the IPv6 client according to the information type requested by the IPv6 client included in the DHCP request, where the DHCP response includes the IPv6 client assigned by the DHCPv6 server configuration information. 11. The IPv6 server according to claim 10, wherein the server information further includes a first server identifier, and the first server identifier is the server identifier of the DHCPv6 server stored in the router. 12. The IPv6 server according to claim 10 or 11, wherein the router comprises: A first receiving unit, configured to receive a routing request RS message from the IPv6 client, where the RS message includes first device domain information; A first sending unit, connected to the first receiving unit, configured to send the RA message to the IPv6 client when the device domain information stored by the router itself is the same as the first device domain information. 13. The IPv6 server according to claim 10, wherein the DHCPv6 server comprises: The second receiving unit is configured to receive a DHCP request sent by the IPv6 client according to the server address, where the DHCP request includes the information type requested by the IPv6 client to configure; A second sending unit, connected to the second receiving unit, configured to send a DHCP response to the IPv6 client, where the DHCP response includes configuration information allocated by the DHCPv6 server to the IPv6 client. 14. The IPv6 server according to claim 13, wherein the DHCP response further includes a second server identifier, and the second server identifier is the server identifier of the DHCPv6 server.

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