CN102137011A - Message forwarding method, device and system for network - Google Patents

Abstract

The embodiment of the invention discloses a message forwarding method, a message forwarding device and a message forwarding system for a network. The network comprises customer premise equipment, access equipment and a plurality of domain name system (DNS) servers, wherein the customer premise equipment is connected with the plurality of DNS servers by the access equipment. The method comprises the following steps of: receiving a DNS request message from the customer premise equipment; extracting matching information from the DNS request message according to a pre-configured DNS forwarding strategy, and acquiring DNS server information corresponding to the matching information according to the DNS forwarding strategy; and transmitting the DNS request message to the DNS server corresponding to the DNS server information. The embodiment also provides the access equipment and the message forwarding system. In the embodiment of the invention, each piece of customer premise equipment (CPE) in the home network can flexibly access a plurality of services provided by a provider.

Description

Message forwarding method, device and system in network

technical field

The embodiments of the present invention relate to communication technologies, and in particular to a message forwarding method, device and system in a network.

Background technique

Home network refers to a home information platform that integrates home control network and multimedia information network. The interconnection and management of equipment such as table equipment, as well as the system of data and multimedia information sharing. The home network system constitutes an intelligent home device, which improves the quality of family life, study, work, and entertainment, and is the development direction of the digital home. In the multi-service convergence scenario of the home network, various customer terminal equipment (Customer Premise Equipment; hereinafter referred to as: CPE) in the home, such as PCs, mobile phones, set-top boxes (hereinafter referred to as: STB), etc., need to be able to access the Provide a variety of services to form an integrated and convenient service experience. And most operators use different virtual private networks (Virtual Private Network; hereinafter referred to as: VPN) to realize different services.

In the prior art, a home gateway (Home Gateway; hereinafter referred to as: HGW) provides different domain name system (Domain Name System; hereinafter referred to as: DNS) servers for different types of CPE, so that different CPEs can access different service networks .

However, in the prior art, one DNS server is fixedly selected for all services in the same CPE, and different DNS servers cannot be selected according to service types, so that users cannot conveniently access multi-service networks, and the flexibility is low, which greatly reduces the Integrate convenient business experience.

Contents of the invention

Embodiments of the present invention provide a message forwarding method, device and system in a network, so that each CPE in a home network can more flexibly access various services provided by operators, and improve user service experience.

In order to achieve the above object, an embodiment of the present invention provides a packet forwarding method in a network, the network includes a client device, an access device, and a DNS server, and the client device communicates with the DNS server through the access device A plurality of DNS servers are connected, and the method includes:

Receive the DNS request message of the client device;

Extract matching information from the DNS request message according to a pre-configured DNS forwarding strategy, and obtain DNS server information corresponding to the matching information according to the DNS forwarding strategy;

Send the DNS request message to the DNS server corresponding to the DNS server information.

An embodiment of the present invention provides an access device, the access device is connected to a client device and multiple DNS servers, and the access device includes:

The user-side interface is used to receive the DNS request message of the client device;

A matching module, configured to extract matching information from the DNS request message according to a pre-configured DNS forwarding strategy, and obtain DNS server information corresponding to the matching information according to the DNS forwarding strategy;

A network side interface, configured to forward the DNS request message to a DNS server corresponding to the DNS server information.

An embodiment of the present invention provides a message forwarding system, the system includes a client device, an access device, and multiple DNS servers, the access device is connected to the client device and the multiple DNS servers, The access device is configured to receive a DNS request message from a client device, extract matching information from the DNS request message according to a pre-configured DNS forwarding policy, and obtain the matching information corresponding to the DNS forwarding policy according to the DNS forwarding policy. DNS server information; sending the DNS request message to the DNS server corresponding to the DNS server information.

The message forwarding method, device, and system in the network provided by the embodiments of the present invention can select different DNS servers according to different types of DNS request messages, without limiting them to fixed DNS servers, and realize the DNS server in the home network. Each CPE can more flexibly access multiple services provided by the operator, such as the same CPE can access different service networks at the same time, which improves the user's service experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is the flowchart of the message forwarding method in the network that one embodiment of the present invention provides;

FIG. 2 is a schematic diagram of a network architecture provided by an embodiment of the present invention;

Fig. 3 is the flowchart of the message forwarding method in the network that one embodiment of the present invention provides;

FIG. 4 is a flowchart of a message forwarding method in a network provided by an embodiment of the present invention;

FIG. 5 is a flowchart of a message forwarding method in a network provided by an embodiment of the present invention;

FIG. 6 is a flowchart of a message forwarding method in a network provided by an embodiment of the present invention;

FIG. 7 is a flowchart of a message forwarding method in a network provided by an embodiment of the present invention;

FIG. 8 is a schematic structural diagram of an access device provided by an embodiment of the present invention;

Fig. 9 is a schematic structural diagram of an access device provided by an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

An embodiment of the present invention provides a method for forwarding packets in a network. FIG. 1 is a flowchart of a method for forwarding packets in a network according to an embodiment of the present invention. FIG. 2 is a schematic diagram of a network architecture provided by an embodiment of the present invention. , as shown in Figure 2, the network may specifically include a client device, an access device, and multiple DNS servers, wherein the access device may be an optical line terminal (Optical Line Terminal, OLT), and the terminal device may be a PC and/or or STB etc.

The method provided in this embodiment may specifically include the following steps:

Step 101: After receiving the DNS request message from the client device, the access device acquires matching information from the DNS request message according to a pre-configured DNS forwarding policy.

The DNS forwarding strategy in this embodiment may include domain name classification forwarding strategy, Session Initiation Protocol (Session Initiation Protocol; hereinafter referred to as: SIP) classification forwarding strategy, Virtual Local Area Network (Virtual Local Area Network; hereinafter referred to as: VLAN) classification forwarding strategy, Ethernet Network (Ethernet; hereinafter referred to as: ETH) port classification forwarding strategy and Media Access Control (Media Access Control; hereinafter referred to as: MAC) address classification forwarding strategy.

The DNS forwarding policy can be pre-configured by the Network Management System (NMS) according to actual needs, and the configured DNS forwarding policy is delivered to the access device in advance and activated.

In this step, according to the DNS forwarding policy, the matching information extracted from the DNS request message may specifically be:

When the pre-configured DNS forwarding policy is the domain name classification forwarding policy, the access device extracts the domain name information from the DNS request message as matching information;

When the pre-configured DNS forwarding policy is the SIP classification forwarding policy, the access device extracts the IP address information from the DNS request message as matching information;

When the pre-configured DNS forwarding policy is the VLAN classification forwarding policy, the access device extracts VLAN identification information from the DNS request message as matching information;

When the pre-configured DNS forwarding policy is the ETH port classification forwarding policy, the access device extracts port information from the DNS request packet as matching information.

Step 105, the access device acquires DNS server information corresponding to the matching information according to the pre-configured DNS forwarding policy.

In this step, after receiving the DNS request message sent by each CPE, the access device extracts matching information from the DNS request message according to the configured DNS forwarding policy, and performs matching processing on the matching information according to the DNS forwarding policy, and then obtains the DNS server information corresponding to the DNS request message.

Step 110, the access device forwards the DNS request message to the DNS server corresponding to the DNS server information.

The DNS server information may specifically be the IP address of the DNS server, and the access device forwards the DNS request message to the corresponding DNS server according to the DNS server information, so as to implement flexible forwarding of the DNS request message.

This embodiment forwards the DNS request message to different DNS servers according to the pre-configured DNS forwarding policy, and does not limit it to a fixed DNS server, so that each CPE in the home network can more flexibly access the DNS server provided by the operator. Multiple services, such as the same CPE can access different service networks at the same time, which improves the user's service experience.

An embodiment of the present invention provides a message forwarding method in a network. FIG. 3 is a flowchart of a message forwarding method in a network provided by an embodiment of the present invention. The method provided in this embodiment may specifically include the following steps:

In step 301, the NMS issues a DNS forwarding policy to the access device, and activates the DNS forwarding policy.

In this embodiment, each flexibly configured DNS forwarding policy is configured on the NMS, and then the NMS delivers the configured DNS forwarding policy to the access device. The DNS forwarding policy in this embodiment is specifically a domain name classification forwarding policy. The NMS delivers the configured domain name classification forwarding policy to the access device, and activates the domain name classification forwarding policy delivered to the access device. In this embodiment, domain name classification and forwarding policies can be added flexibly, search and match can be performed according to the longest match principle, or can specifically match the corresponding DNS server according to the end information of the domain name, such as domain names ending with ".com". Correspondingly point to DNS server 1, domain names ending with ".voip.ctc" point to DNS server 2, and domain names ending with ".iptv.ctc" point to DNS server 3.

Step 302, the access device obtains the IP address of the DNS server from the upstream server.

The DNS server information in this step is the IP address of each DNS server.

Step 303, the access device configures the IP address of the DNS server on each client terminal device as its own IP address.

After the client goes online, the access device in this embodiment interacts with the client through the Dynamic Host Configuration Protocol (Dynamic Host Configuration Protocol; hereinafter referred to as: DHCP), and configures the IP address of the DNS server on the client device as its own IP address.

Step 304, the access device captures the DNS request message sent by the client device, and extracts corresponding domain name information from the received DNS request message.

Through the above configuration of the address of the DNS server in the client device, the DNS request message of the client device can be captured by the access device. The HGW captures the DNS request packet sent by the client device, and extracts the domain name information carried in the DNS request packet as matching information.

Step 305, the access device performs matching processing on the domain name information according to the pre-configured domain name classification and forwarding policy, and acquires DNS server information corresponding to the domain name information.

This step is for the access device to match the obtained domain name information according to the configured domain name classification and forwarding policy, and obtain the DNS server information corresponding to the domain name information through matching. The DNS server information here is specifically the IP address of the DNS server. Matching can obtain the IP address of the DNS server corresponding to each DNS request message.

Step 306, the access device forwards the DNS request message to the corresponding DNS server.

After obtaining the IP address of the corresponding DNS server through the above steps, the access device forwards the captured DNS request message to the DNS server, so as to implement flexible forwarding of the message.

In this embodiment, the DNS request message is matched through the pre-configured domain name classification and forwarding strategy, the IP address of the corresponding DNS server is obtained according to the matching result, and the DNS request message is forwarded to the corresponding DNS server according to the IP address of the DNS server. On the server, to realize the visit to corresponding business network; This embodiment selects different DNS servers according to different types of DNS request messages, and does not limit it to a fixed DNS server, and realizes each CPE in the home network It can more flexibly access multiple services provided by operators, such as the same CPE can access different service networks at the same time, which improves the user's service experience.

An embodiment of the present invention provides a method for forwarding messages in a network. FIG. 4 is a flowchart of a method for forwarding messages in a network provided by an embodiment of the present invention. The method provided in this embodiment may specifically include the following steps:

In step 401, the NMS issues a DNS forwarding policy to the access device, and activates the DNS forwarding policy.

In this embodiment, each flexibly configured DNS forwarding policy is configured on the NMS, and then the NMS delivers the configured DNS forwarding policy to the access device. The DNS forwarding policy in this embodiment is specifically a SIP classification forwarding policy, and the NMS delivers the configured SIP classification forwarding policy to the access device, and activates the SIP classification forwarding policy delivered to the access device. In this embodiment, the SIP classification and forwarding strategy can specifically match the corresponding DNS server according to the IP address segment where the IP address is located. For example, the DNS request message from the IP address segment 192.168. For server 1, the DNS request message from the IP address range 192.168.1.11-192.168.1.20 is correspondingly directed to DNS server 2.

In step 402, the access device acquires the IP address of the DNS server from the upstream server. This step may be similar to the above step 302, and will not be repeated here.

Step 403, the access device configures the IP address of the DNS server on each client terminal device as its own IP address, this step may be similar to the above step 303, and will not be repeated here.

Step 404, the access device captures the DNS request message sent by the client device, and extracts the corresponding IP address information from the received DNS request message.

Through the above configuration of the address of the DNS server in the client device, the DNS request message of the client device can be captured by the access device. The access device captures the DNS request message sent by the client device, and extracts the IP address carried therein from the DNS request message, where the IP address may be the IP address of the client device.

Step 405, the access device performs matching processing on the IP address information according to the pre-configured SIP classification and forwarding policy, and obtains DNS server information corresponding to the IP address information.

This step is for the access device to match the obtained IP address information according to the configured SIP classification and forwarding strategy, and obtain the DNS server information corresponding to the IP address information through matching, where the DNS server information is specifically the IP address of the DNS server , the IP address of the DNS server corresponding to each DNS request message can be obtained through matching.

Step 406, the access device forwards the DNS request message to the corresponding DNS server, this step may be similar to the above step 306, and will not be repeated here.

In this embodiment, after receiving the DNS request message, the DNS request message is matched through the pre-configured SIP classification and forwarding strategy, and the IP address of the corresponding DNS server is obtained according to the matching result, and then the IP address of the DNS server is set to The DNS request message is forwarded to the corresponding DNS server to achieve access to the corresponding service network; this embodiment selects different DNS servers according to different types of DNS request messages, and does not limit it to a fixed DNS server , so that each CPE in the home network can more flexibly access various services provided by the operator, such as the same CPE can access different service networks at the same time, which improves the user's service experience.

An embodiment of the present invention provides a method for forwarding messages in a network. FIG. 5 is a flowchart of a method for forwarding messages in a network provided by an embodiment of the present invention. The provided method may specifically include the following steps:

In step 501, the NMS issues a DNS forwarding policy to the access device, and activates the DNS forwarding policy.

The DNS forwarding policy in this embodiment is specifically a VLAN classification forwarding policy, and the NMS delivers the configured VLAN classification forwarding policy to the access device, and activates the VLAN classification forwarding policy delivered to the access device. In this embodiment, the VLAN classification and forwarding strategy can specifically match the corresponding DNS server according to the VLAN identifier (tag) used by the client device, such as a DNS request message with a VLAN tag of 10 correspondingly pointing to DNS server 1, VLAN A DNS request message with a tag of 20 is correspondingly directed to DNS server 2, and a DNS request message with a VLAN tag of 30 is correspondingly directed to DNS server 3.

In step 502, the access device acquires the IP address of the DNS server from the upstream server. This step may be similar to the above step 302, and will not be repeated here.

Step 503, the access device configures the IP address of the DNS server on each client terminal device as its own IP address, this step may be similar to the above step 303, and will not be repeated here.

Step 504, the access device captures the DNS request message sent by the client device, and extracts the corresponding VLAN tag information from the received DNS request message.

Through the above configuration of the address of the DNS server in the client device, the DNS request message of the client device can be captured by the access device. The access device captures the DNS request message sent by the client device, and extracts the VLAN tag information carried in the DNS request message. Among them, different types of client devices use different VLANs and have different VLAN tag information accordingly. For example, the VLAN tag information carried in the message from the PC is 10, and the VLAN tag information carried in the message from the STB is 30. .

Step 505, the access device performs matching processing on the VLAN tag information according to the pre-configured VLAN classification forwarding policy, and obtains DNS server information corresponding to the VLAN tag information.

This step is for the access device to match the obtained VLANtag information according to the configured VLAN classification and forwarding strategy, and obtain the DNS server information corresponding to the VLAN tag information through matching. The DNS server information here is specifically the IP address of the DNS server. The IP address of the DNS server corresponding to each DNS request message can be obtained through matching.

In step 506, the access device forwards the DNS request message to the corresponding DNS server. This step may be similar to the above step 306 and will not be repeated here.

The message forwarding method in the network provided by this embodiment, after receiving the DNS request message, performs matching processing on the DNS request message through the pre-configured VLAN classification forwarding strategy, and obtains the IP address of the corresponding DNS server according to the matching result , and forward the DNS request message to the corresponding DNS server according to the IP address of the DNS server, so as to realize the access to the corresponding service network; the present embodiment selects different DNS servers according to different types of DNS request messages, It is not limited to a fixed DNS server, so that each CPE in the home network can more flexibly access various services provided by the operator, such as the same CPE can access different service networks at the same time, which improves the user's service experience.

An embodiment of the present invention provides a message forwarding method in a network. FIG. 6 is a flowchart of a message forwarding method in a network provided by an embodiment of the present invention, which may specifically include the following steps:

In step 601, the NMS issues a DNS forwarding policy to the access device, and activates the DNS forwarding policy.

In this embodiment, each flexibly configured DNS forwarding policy is configured on the NMS, and then the NMS delivers the configured DNS forwarding policy to the access device. The DNS forwarding policy in this embodiment is specifically the ETH port classification forwarding policy, and the NMS delivers the configured ETH port classification forwarding policy to the access device, and activates the ETH port classification forwarding policy. In this embodiment, the ETH port classification and forwarding strategy can specifically match the corresponding DNS server according to the ETH port where the client device is located. The request message is correspondingly directed to DNS server 2, and the DNS request message from the ETH3 port is correspondingly directed to DNS server 3.

In step 602, the access device acquires the IP address of the DNS server from the upstream server. This step may be similar to the above step 302, and will not be repeated here.

Step 603, the access device configures the IP address of the DNS server on each client terminal device as its own IP address, this step may be similar to the above step 303, and will not be repeated here.

Step 604, the access device captures the DNS request message sent by the client device, and extracts corresponding port information from the received DNS request message.

Through the above configuration of the address of the DNS server in the client device, the DNS request message of the client device can be captured by the access device. The access device captures the DNS request message sent by the client device, and extracts the port information carried in the DNS request message. Different client device types correspond to different ETH ports. For example, the port information carried in the DNS request message from the PC is the ETH1 port, and the port information carried in the DNS request message from the STB is the ETH2 port.

Step 605, the access device performs matching processing on the port information according to the pre-configured ETH port classification and forwarding policy, and obtains DNS server information corresponding to the port information.

This step is for the access device to match the obtained port information according to the configured ETH port classification and forwarding strategy, and obtain the DNS server information corresponding to the port information through matching. The DNS server information here is specifically the IP address of the DNS server. The IP address of the DNS server corresponding to each DNS request message can be obtained through matching.

In step 606, the access device forwards the DNS request message to the corresponding DNS server. This step may be similar to the above step 306 and will not be repeated here.

The message forwarding method in the network provided by this embodiment, after receiving the DNS request message, performs matching processing on the DNS request message through the pre-configured ETH port classification forwarding strategy, and obtains the IP address of the corresponding DNS server according to the matching result address, and forward the DNS request message to the corresponding DNS server according to the IP address of the DNS server, so as to realize the access to the corresponding service network; the present embodiment selects different DNS servers according to different types of DNS request messages. , instead of limiting it to a fixed DNS server, so that each CPE in the home network can access various services provided by the operator more flexibly, such as the same CPE can access different service networks at the same time, which improves the service experience of users .

An embodiment of the present invention provides a message forwarding method in a network. FIG. 7 is a flowchart of a message forwarding method in a network provided by an embodiment of the present invention, which may specifically include the following steps:

In step 701, the NMS issues a DNS forwarding policy to the access device, and activates the DNS forwarding policy.

In this embodiment, each flexibly configured DNS forwarding policy is configured on the NMS, and then the NMS delivers the configured DNS forwarding policy to the access device. The DNS forwarding policy in this embodiment is specifically a MAC address classification forwarding policy, and the NMS delivers the configured MAC address classification forwarding policy to the access device, and activates the MAC address classification forwarding policy. In this embodiment, the classified forwarding strategy can specifically match the corresponding DNS server according to the MAC address of the client device, such as a DNS request message with a MAC address of 00-E0-4C-XX-XX correspondingly pointing to DNS server 1 , the DNS request message with the MAC address 00-25-9E-XX-XX is correspondingly directed to the DNS server 2.

In step 702, the access device acquires the IP address of the DNS server from the upstream server. This step may be similar to the above step 302, and will not be repeated here.

Step 703, the access device configures the IP address of the DNS server on each client terminal device as its own IP address, this step may be similar to the above step 303, and will not be repeated here.

Step 704, the access device captures the DNS request message sent by the client device, and extracts the corresponding MAC information from the received DNS request message.

Through the above configuration of the address of the DNS server in the client device, the DNS request message of the client device can be captured by the access device. The access device captures the DNS request message sent by the client device, and extracts the MAC address carried in the DNS request message. Wherein, different client devices have different MAC addresses.

Step 705, the access device performs matching processing on the MAC address according to the pre-configured MAC address classification and forwarding policy, and acquires DNS server information corresponding to the MAC address.

This step is for the access device to match the obtained port information according to the configured MAC address classification and forwarding strategy, and obtain the DNS server information corresponding to the MAC address through matching. The DNS server information here is specifically the IP address of the DNS server. The IP address of the DNS server corresponding to each DNS request message can be obtained through matching.

In step 706, the access device forwards the DNS request message to the corresponding DNS server. This step may be similar to the above step 306, and will not be repeated here.

The message forwarding method in the network provided by this embodiment, after receiving the DNS request message, performs matching processing on the DNS request message through the pre-configured MAC address classification forwarding strategy, and obtains the IP address of the corresponding DNS server according to the matching result address, and forward the DNS request message to the corresponding DNS server according to the IP address of the DNS server, so as to realize the access to the corresponding service network; the present embodiment selects different DNS servers according to different types of DNS request messages. , instead of limiting it to a fixed DNS server, so that each CPE in the home network can access various services provided by the operator more flexibly, such as the same CPE can access different service networks at the same time, which improves the service experience of users .

Those of ordinary skill in the art can understand that all or part of the steps for realizing the above-mentioned method embodiments can be completed by hardware related to program instructions, and the aforementioned program can be stored in a computer-readable storage medium. When the program is executed, the It includes the steps of the above method embodiments; and the aforementioned storage medium includes: ROM, RAM, magnetic disk or optical disk and other various media that can store program codes.

An embodiment of the present invention provides an access device. FIG. 8 is a schematic structural diagram of the access device provided by an embodiment of the present invention. The access device provided in this embodiment can specifically perform the steps in the first embodiment of the above method. I won't repeat them here.

The access device provided in this embodiment can be connected to a client device and multiple domain name DNS servers, and can specifically include a user-side interface 800 , a matching module 801 , and a network-side interface 802 .

Wherein, the user-side interface 800 is configured to receive a request message from a client device.

The matching module 801 is configured to extract matching information from the DNS request message according to a pre-configured DNS forwarding strategy, and obtain DNS server information corresponding to the matching information according to the DNS forwarding strategy.

The network side interface 802 is configured to forward the DNS request message to the DNS server corresponding to the DNS server information.

FIG. 9 is a schematic structural diagram of an access device provided by an embodiment of the present invention. The matching module 801 in this embodiment may specifically include an extraction unit 811 and an acquisition unit 812 .

Wherein, the extracting unit 811 is configured to extract corresponding domain name information from the received DNS request message. The obtaining unit 812 is configured to obtain DNS server information corresponding to the domain name information according to a pre-configured domain name classification and forwarding policy.

Alternatively, the extracting unit 811 is configured to extract corresponding IP address information from the received DNS request message. The obtaining unit 812 is configured to obtain DNS server information corresponding to the IP address information according to a pre-configured SIP classification and forwarding policy.

Alternatively, the extracting unit 811 is configured to extract corresponding virtual local area network (VLAN) identification information from the received DNS request message. The obtaining unit 812 is configured to obtain DNS server information corresponding to the VLAN identification information according to a pre-configured VLAN classification and forwarding policy.

Alternatively, the extracting unit 811 is configured to extract corresponding port information from the received DNS request message. The obtaining unit 812 is configured to obtain DNS server information corresponding to the port information according to a pre-configured ETH port classification and forwarding policy.

Alternatively, the extracting unit 811 is configured to extract corresponding MAC address information from the received DNS request message. The obtaining unit 812 is configured to obtain the DNS server corresponding to the MAC address information according to the pre-configured MAC address classification and forwarding policy.

The access device provided in this embodiment can select different DNS servers according to different types of DNS request messages, without limiting it to a fixed DNS server, so that each CPE in the home network can access the operating system more flexibly. Multiple services provided by the provider, such as the same CPE can access different service networks at the same time, which improves the user's service experience.

This embodiment also provides a message forwarding system. The system may specifically include a client device, an access device, and multiple domain name system DNS servers. The access device is connected to the client device and multiple DNS servers, wherein the access device An ingress device, configured to receive a DNS request message from a client device, extract matching information from the DNS request message according to a pre-configured DNS forwarding policy, and obtain a DNS server corresponding to the matching information according to the DNS forwarding policy information; sending the DNS request message to the DNS server corresponding to the DNS server information.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it can still be Modifications are made to the technical solutions described in the foregoing embodiments, or equivalent replacements are made to some of the technical features; these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims (9)

1. A message forwarding method in a network is characterized in that the network comprises a client device, an access device and a plurality of Domain Name System (DNS) servers, the client device is connected with the DNS servers through the access device, and the method comprises the following steps:

receiving a DNS request message of client equipment;

extracting matching information from the DNS request message according to a pre-configured DNS forwarding strategy, and acquiring DNS server information corresponding to the matching information according to the DNS forwarding strategy;

and sending the DNS request message to a DNS server corresponding to the DNS server information.

2. The method according to claim 1, wherein the extracting matching information from the DNS request packet according to a preconfigured DNS forwarding policy, and the obtaining DNS server information corresponding to the matching information according to the DNS forwarding policy specifically includes:

extracting domain name information from the DNS request message;

and acquiring DNS server information corresponding to the domain name information according to a pre-configured domain name classification forwarding strategy.

3. The method according to claim 1, wherein the extracting matching information from the DNS request packet according to a preconfigured DNS forwarding policy, and the obtaining DNS server information corresponding to the matching information according to the DNS forwarding policy specifically includes:

extracting IP address information from the DNS request message;

and acquiring DNS server information corresponding to the IP address information according to a pre-configured SIP classification forwarding strategy.

4. The method according to claim 1, wherein the extracting matching information from the DNS request packet according to a preconfigured DNS forwarding policy, and the obtaining DNS server information corresponding to the matching information according to the DNS forwarding policy specifically includes:

extracting VLAN identification information of a virtual local area network from the DNS request message;

and obtaining DNS server information corresponding to the VLAN identification information according to a preset VLAN classification forwarding strategy.

5. The method according to claim 1, wherein the extracting matching information from the DNS request packet according to a preconfigured DNS forwarding policy, and the obtaining DNS server information corresponding to the matching information according to the DNS forwarding policy specifically includes:

extracting port information from the DNS request message;

and acquiring DNS server information corresponding to the port information according to a pre-configured Ethernet ETH port classification forwarding strategy.

6. The method according to claim 1, wherein the extracting matching information from the DNS request packet according to a preconfigured DNS forwarding policy, and the obtaining DNS server information corresponding to the matching information according to the DNS forwarding policy specifically includes:

extracting Medium Access Control (MAC) address information from the DNS request message;

and acquiring the DNS server corresponding to the MAC address information according to a pre-configured MAC address classification forwarding strategy.

7. An access device, wherein the access device connects a client device and a plurality of Domain Name System (DNS) servers, the access device comprising:

the user side interface is used for receiving a DNS request message of the client equipment;

the matching module is used for extracting matching information from the DNS request message according to a pre-configured DNS forwarding strategy and acquiring DNS server information corresponding to the matching information according to the DNS forwarding strategy;

and the network side interface is used for forwarding the DNS request message to a DNS server corresponding to the DNS server information.

8. The apparatus of claim 7, wherein the matching module comprises:

an extracting unit, configured to extract domain name information from the DNS request packet;

the acquisition unit is used for acquiring DNS server information corresponding to the domain name information according to a pre-configured domain name classification forwarding strategy; or,

an extracting unit, configured to extract IP address information from the DNS request packet;

an obtaining unit, configured to obtain, according to a pre-configured session initiation protocol SIP classification forwarding policy, DNS server information corresponding to the IP address information; or,

an extracting unit, configured to extract corresponding VLAN identification information from the DNS request message;

the obtaining unit is used for obtaining DNS server information corresponding to the VLAN identification information according to a preset VLAN classification forwarding strategy; or,

an extracting unit, configured to extract port information from the DNS request packet;

the device comprises an acquisition unit, a forwarding unit and a forwarding unit, wherein the acquisition unit is used for acquiring DNS server information corresponding to port information according to a pre-configured Ethernet ETH port classification forwarding strategy; or,

an extracting unit, configured to extract medium access control MAC address information from the DNS request message;

and the obtaining unit is used for obtaining the DNS server corresponding to the MAC address information according to a pre-configured MAC address classification forwarding strategy.

9. A message forwarding system is characterized in that the system comprises client equipment, access equipment and a plurality of Domain Name System (DNS) servers, wherein the access equipment is connected with the client equipment and the DNS servers, and is used for receiving a DNS request message of the client equipment, extracting matching information from the DNS request message according to a pre-configured DNS forwarding strategy and acquiring DNS server information corresponding to the matching information according to the DNS forwarding strategy; and sending the DNS request message to a DNS server corresponding to the DNS server information.

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