WO2017206575A1 - Communication protocol access method, apparatus and system - Google Patents

Abstract

Disclosed are a communication protocol access method, apparatus and system. The method comprises: encapsulating (IPv6) a prefix request message through a port control protocol (PCP); sending the encapsulated (IPv6) prefix request message to a broadband access server; and receiving a response message returned by the broadband access server. The embodiments of the present invention realize the distribution of a IPv6 prefix where an address allocation protocol is a neighbour discovery protocol, and expands the effect of accessing IPv6 of a domestic gateway.

Description

Method, device and system for accessing communication protocol Technical field

This document relates to, but is not limited to, the field of communications, and in particular, to a method, device and system for accessing a communication protocol.

Background technique

With the exhaustion of Internet Protocol version 4 (IPv4) address resources, Internet Protocol Version 6, IPv6, will gradually replace IPv4. IPv6 has a plug-and-play feature. Without any manual intervention, a node can join the network to obtain network parameters such as an IPv6 address and a Domain Name System (DNS) address.

The Broadband Remote Access Server (BRAS) is an access gateway for broadband network applications. It is a bridge between the broadband access network and the backbone network, providing basic access means and broadband access network. Management function. It is located at the edge of the network, provides broadband access services, and achieves convergence and forwarding of multiple services. It can meet the requirements of different users for transmission capacity and bandwidth utilization. Therefore, it is the core device for broadband users to access. The BRAS first authenticates the accessed user. The authentication allows the user to access the broadband network, and the authentication fails to deny the user access to the broadband network.

With the deployment of IPv6 networks and services, IPv6 broadband access services are becoming more and more popular. As a common access type, Home Gateway (HG) broadband access provides users with high-speed Internet access, wireless connectivity, Internet Protocol Television (IPTV), voice telephony and other services. The BRAS device acts as an access server for the HG and provides an address allocation function for the HG.

For IPv6 HG broadband access, the BRAS allocates an HG IPv6 address for the HG, and the BRAS allocates an IPv6 prefix for the HG. The HG allocates the IPv6 prefix as an IPv6 address pool to the home terminal, and the home terminal includes a Voice over IP (VoIP) terminal, a personal computer, and an IPTV set-top box. The function of assigning an IPv6 prefix to a BRAS is called Prefix Delegation (PD). IPv6 Dynamic Host Configuration Protocol (Dynamic The Host Configuration Protocol for IPv6 (DHCPv6) protocol provides the PD function to allocate an IPv6 prefix to the HG. When the HG is configured with the DHCPv6 address, the H6 can be assigned an IPv6 prefix. However, the Neighbor Discovery (ND) protocol does not support the PD function. If the HG performs stateless autoconfiguration through the ND protocol, it cannot be assigned an IPv6 address prefix.

Summary of invention

The following is an overview of the topics detailed in this document. This Summary is not intended to limit the scope of the claims.

The embodiment of the invention provides a method, a device and a system for accessing a communication protocol. When the address allocation protocol is the neighbor discovery protocol ND, the IPv6 prefix can be allocated.

According to an embodiment of the present invention, a method for accessing a communication protocol is provided, including: encapsulating an IPv6 prefix request message by using a port control protocol; transmitting the encapsulated IPv6 prefix request message to a broadband access server; receiving broadband access The response message returned by the server.

Optionally, the IPv6 prefix request message includes: an IPv6 prefix request request message or an IPv6 prefix release request message.

Optionally, the IPv6 prefix request message is encapsulated by the port control protocol (PCP), including: receiving an IPv6 prefix request request message of the IPv6 address pool, and encapsulating the IPv6 prefix request request message, where the IPv6 prefix request message includes the IPv6 prefix request request message, A PCP PD request request message is obtained.

Optionally, sending the encapsulated IPv6 prefix request message to the broadband access server includes: sending a PCP PD request request message to the broadband access server.

Optionally, receiving the response message returned by the broadband access server includes: receiving a PCP PD request response message returned by the broadband access server; parsing the PCP PD request response message to obtain an IPv6 prefix; and returning the IPv6 prefix to the IPv6 address pool.

Optionally, the IPv6 prefix includes: an IPv6 prefix address and an IPv6 prefix length.

Optionally, the IPv6 prefix request message is encapsulated by the PCP, including: receiving the IPv6 prefix release request message of the IPv6 address pool and the IPv6 prefix to be released in the case that the IPv6 prefix request message includes the IPv6 prefix release request message; and encapsulating the IPv6 prefix release Request message and pending release The IPv6 prefix is obtained as a PCP PD release request message.

Optionally, sending the encapsulated IPv6 prefix request message to the broadband access server includes: sending a PCP PD release request message to the broadband access server.

Optionally, receiving the response message returned by the broadband access server includes: receiving a PCP PD release response message returned by the broadband access server; parsing the PCP PD release response message, and obtaining a release result, where the release result includes: the release succeeds or the release fails; The result of the release is returned to the IPv6 address pool.

According to an embodiment of the present invention, a method for accessing another communication protocol is provided, including: receiving, by a port control protocol, a PCP, an encapsulated IPv6 prefix request message; obtaining a response result corresponding to an IPv6 prefix request message; and packaging a response result. , get a response message; return a response message to the gateway.

Optionally, the IPv6 prefix request message includes: an IPv6 prefix request request message or an IPv6 prefix release request message.

Optionally, the receiving, by the PCP, the encapsulated IPv6 prefix request message includes: receiving, by using the PCP, a PCP PD request request message sent by the gateway, where the IPv6 prefix request message includes the IPv6 prefix request request message.

Optionally, the response result corresponding to the obtaining the IPv6 prefix request message includes: requesting the IPv6 prefix from the prefix pool according to the PCP PD request request message; and receiving the IPv6 prefix returned by the prefix pool.

Optionally, the response result is encapsulated, and the response message is obtained by: encapsulating the IPv6 prefix, and obtaining a PCP PD request response message.

Optionally, returning the response message to the gateway includes: returning a PCP PD request response message to the gateway.

Optionally, the receiving, by the PCP, the encapsulated IPv6 prefix request message includes: receiving, in the case of the IPv6 prefix request message, the PCP PD release request message sent by the gateway by using the PCP.

Optionally, the response result of the obtaining the IPv6 prefix request message includes: parsing the PCP PD release request message, and obtaining the IPv6 prefix to be released; requesting to release the IPv6 prefix to be released from the prefix pool according to the PCP PD release request message; The release result, the release result includes: release success or release failure.

Optionally, the response result is encapsulated, and the response message is obtained: the package release result is obtained, and the PCP is obtained. The PD releases the response message.

Optionally, returning the response message to the gateway includes: returning a PCP PD release response message to the gateway.

According to another embodiment of the present invention, an apparatus for accessing a communication protocol is provided, including: a packaging module, configured to encapsulate an IPv6 prefix request message by using a port control protocol (PCP), and a sending module, configured to: encapsulate the encapsulated IPv6 prefix request The message is sent to the broadband access server, and the receiving module is configured to receive a response message returned by the broadband access server.

Optionally, the IPv6 prefix request message includes: an IPv6 prefix request request message or an IPv6 prefix release request message.

Optionally, the encapsulating module includes: a first receiving unit, configured to receive an IPv6 prefix request request message of the IPv6 address pool, where the IPv6 prefix request message includes an IPv6 prefix request request message; the first encapsulating module is configured to encapsulate the IPv6 The prefix request request message is obtained by the PCP PD request request message.

Optionally, the sending module includes: a first sending unit configured to send a PCP PD request request message to the broadband access server.

Optionally, the receiving module includes: a second receiving unit configured to receive a PCP PD request response message returned by the broadband access server; a first parsing unit configured to parse the PCP PD request response message to obtain an IPv6 prefix; and the second sending unit , configured to return the IPv6 prefix to the IPv6 address pool.

Optionally, the IPv6 prefix includes: an IPv6 prefix address and an IPv6 prefix length.

Optionally, the encapsulating module includes: a third receiving unit, configured to receive an IPv6 prefix release request message of the IPv6 address pool and an IPv6 prefix to be released, where the IPv6 prefix request message includes an IPv6 prefix release request message; The unit is configured to encapsulate an IPv6 prefix release request message and an IPv6 prefix to be released, to obtain a PCP PD release request message.

Optionally, the sending module includes: a third sending unit configured to send a PCP PD release request message to the broadband access server.

Optionally, the receiving module includes: a fourth receiving unit configured to receive a PCP PD release response message returned by the broadband access server; and a second parsing unit configured to parse the PCP PD release response message to obtain a release result, where the release result includes: The release succeeds or the release fails; the fourth sending unit is configured to return the release result to the IPv6 address pool.

According to another embodiment of the present invention, an apparatus for accessing another communication protocol is provided, including: a receiving module configured to receive a gateway encapsulated IPv6 prefix request message through a port control protocol PCP; and an obtaining module configured to acquire IPv6 The response result corresponding to the prefix request message; the encapsulating module is configured to encapsulate the response result, and obtain a response message; and the sending module is configured to return a response message to the gateway.

Optionally, the IPv6 prefix request message includes: an IPv6 prefix request request message or an IPv6 prefix release request message.

Optionally, the receiving module includes: a first receiving unit, configured to receive, by using the PCP, a PCP PD request request message sent by the gateway, if the IPv6 prefix request message includes an IPv6 prefix request request message.

Optionally, the obtaining module includes: a first sending unit configured to request an IPv6 prefix from the prefix pool according to the PCP PD request request message; and a second receiving unit configured to receive the IPv6 prefix returned by the prefix pool.

Optionally, the encapsulating module includes: a first encapsulating unit configured to encapsulate an IPv6 prefix, and obtain a PCP PD request response message.

Optionally, the sending module includes: a second sending unit configured to return a PCP PD request response message to the gateway.

Optionally, the receiving module includes: a third receiving unit, configured to receive, by using the PCP, a PCP PD release request message sent by the gateway, if the IPv6 prefix request message includes an IPv6 prefix release request message.

Optionally, the obtaining module includes: a parsing unit, configured to parse the PCP PD release request message, and obtain an IPv6 prefix to be released; and the third sending unit is configured to request, according to the PCP PD release request message, the IPv6 prefix to be released from the prefix pool. The fourth receiving unit is configured to receive the release result returned by the prefix pool, and the release result includes: the release succeeds or the release fails.

Optionally, the encapsulating module includes: a second encapsulating unit configured to encapsulate a release result, and obtain a PCP PD release response message.

Optionally, the sending module includes: a fourth sending unit, configured to return a PCP PD release response message to the gateway.

According to still another embodiment of the present invention, a system for accessing a communication protocol is provided, including: a gateway device and a broadband access server, a gateway device and a broadband access server, wherein the gateway device is a communication protocol Access device; the broadband access server is a device for accessing another communication protocol.

Compared with the related art, the technical solution provided by the embodiment of the present invention includes: using a Port Control Protocol (PCP) encapsulation (IPv6) prefix request message; sending the encapsulated IPv6 prefix request message to the broadband access server; receiving the broadband connection The response message is returned to the server. The embodiment of the present invention implements the allocation of the IPv6 prefix in the case that the address allocation protocol is the neighbor discovery protocol ND, and extends the effect of the IPv6 access of the home gateway.

Other aspects will be apparent upon reading and understanding the drawings and detailed description.

BRIEF abstract

1 is a block diagram showing the hardware structure of a gateway device of a method for accessing a communication protocol according to an embodiment of the present invention;

2 is a flowchart of a method for accessing a communication protocol according to Embodiment 1 of the present invention;

3 is a flowchart of a method for accessing a communication protocol according to Embodiment 2 of the present invention;

4 is a schematic structural diagram of unit components of an HG entity and a BRAS entity in an embodiment of the present invention;

5 is a schematic diagram of an application flow of an IPv6 prefix of an HG entity in an embodiment of the present invention;

6 is a schematic diagram of a release procedure of an IPv6 prefix of an HG entity in an embodiment of the present invention;

7 is a schematic structural diagram of a home gateway access deployment network in the embodiment of the present invention;

8 is a schematic flowchart of an IPv6 address and IPv6 prefix allocation process in an embodiment of the present invention;

9 is a structural block diagram of an apparatus for accessing a communication protocol according to Embodiment 3 of the present invention;

FIG. 10 is a structural block diagram of an apparatus for accessing a communication protocol according to Embodiment 3 of the present invention; FIG.

11 is a structural block diagram of another apparatus for accessing a communication protocol according to Embodiment 3 of the present invention;

FIG. 12 is a structural block diagram of an apparatus for accessing a communication protocol according to Embodiment 4 of the present invention; FIG.

FIG. 13 is a structural block diagram of an apparatus for accessing a communication protocol according to Embodiment 4 of the present invention; FIG.

14 is a structural block diagram of another apparatus for accessing a communication protocol according to Embodiment 4 of the present invention;

15 is a structural block diagram of a system for accessing a communication protocol according to Embodiment 5 of the present invention.

Detailed

Embodiments of the present application will be described in detail below with reference to the accompanying drawings. It should be noted that, in the case of no conflict, the features in the embodiments and the embodiments in the present application may be arbitrarily combined with each other.

It is to be understood that the terms "first", "second" and the like in the specification and claims of the present invention are used to distinguish similar objects, and are not necessarily used to describe a particular order or order.

Technical terms related to embodiments of the present invention:

Port Control Protocol (PCP) is a protocol for resolving the reception of NAT internal network data streams. When a node of the internal network of the Net Address Translation (NAT) receives the traffic of the external network, if the internal node does not connect to the source of the traffic, the traffic is discarded on the NAT device. Before the traffic passes through the NAT network, PCP technology is used to establish a mapping on the NAT network. When the traffic arrives, it can pass through the NAT network to reach its internal receiving node. The PCP is divided into a PCP client and a PCP server. The PCP client requests or releases the mapping to the PCP server through the PCP request message. At the same time, the PCP protocol can also be applied to the IPv6 network to implement hole punching of the IPv6 firewall, so that external traffic traverses the IPv6 firewall.

PCP has good scalability. New features can be extended by extending the Opcode field of the PCP message and adding new PCP options.

Neighbor Discovery Protocol: Neighbor Discovery, referred to as ND;

Prefix assignment: Prefix Delegation, referred to as PD;

Home Gateway: Home Gateway, referred to as HG;

Broadband Access Server: Broadband Remote Access Server, or BRAS for short.

Example 1

The method embodiment provided by Embodiment 1 of the present application can be executed in a mobile terminal, a computer terminal, a gateway device, or the like. Take the example of running on a gateway device, Figure 1 is the hair A hardware block diagram of a gateway device of a method for accessing a communication protocol according to an embodiment of the present invention. As shown in FIG. 1, the mobile terminal 10 may include one or more (only one shown) processor 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA). A memory 104 configured to store data and a transmission device 106 configured as a communication function. It will be understood by those skilled in the art that the structure shown in FIG. 1 is merely illustrative and does not limit the structure of the above electronic device. For example, gateway device 10 may also include more or fewer components than shown in FIG. 1, or have a different configuration than that shown in FIG.

The memory 104 can be configured as a software program and a module for storing application software, such as program instructions/modules corresponding to the method of accessing the communication protocol in the embodiment of the present invention, and the processor 102 runs the software program and module stored in the memory 104. Thereby performing various functional applications and data processing, that is, implementing the above method. Memory 104 may include high speed random access memory, and may also include non-volatile memory such as one or more magnetic storage devices, flash memory, or other non-volatile solid state memory. In some examples, memory 104 may further include memory remotely located relative to processor 102, which may be connected to gateway device 10 over a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

Transmission device 106 is configured to receive or transmit data via a network. The above-described network specific example may include a wireless network provided by a communication provider of the gateway device 10. In one example, the transmission device 106 includes a Network Interface Controller (NIC) that can be connected to other network devices through a base station to communicate with the Internet. In one example, the transmission device 106 can be a Radio Frequency (RF) module configured to communicate with the Internet wirelessly.

In this embodiment, a method for operating the gateway device is provided. FIG. 2 is a flowchart of a method for accessing a communication protocol according to an embodiment of the present invention. As shown in FIG. 2, on the network device side, the method includes:

Step (S) 202, encapsulating an Internet Protocol version 6 (IPv6) prefix request message by using a port control protocol;

S204. Send the encapsulated IPv6 prefix request message to the broadband access server.

S206. Receive a response message returned by the broadband access server.

The method for accessing the communication protocol provided by the embodiment of the present application can be applied in combination with S202 to S204. Under the ND protocol, the PC function is supported by the PCP protocol under the ND protocol. On the gateway device side, the gateway device mentioned in this embodiment may be an HG. In the embodiment of the present application, the HG may include: a PCP client unit and an IPv6 Pool (IPv6 address pool) unit.

The PCP client unit receives the IPv6 prefix request message sent by the IPv6 Pool, and encapsulates the IPv6 prefix request message, and then sends the encapsulated IPv6 prefix request message to the broadband access server (BRAS); and receives the response message returned by the BRAS. .

In the embodiment of the present application, the IPv6 prefix request message may include two types: type one, an IPv6 prefix request request (that is, an IPv6 prefix request request message in the embodiment of the present application); type two, an IPv6 prefix request request (ie, the present Apply the IPv6 prefix release request message in the embodiment.

In the method for accessing the communication protocol provided by the embodiment of the present application, the IPv6 prefix request message is encapsulated by the port control protocol; the encapsulated IPv6 prefix request message is sent to the broadband access server; and the response message returned by the broadband access server is received. The allocation of the IPv6 prefix in the case where the address allocation protocol is the neighbor discovery protocol ND extends the effect of the IPv6 access of the home gateway.

In combination with the foregoing S202 to S206, in the embodiment of the present application, according to the type of the IPv6 prefix request message, the following two implementation manners are respectively included:

Manner 1: The initiation process of the IPv6 prefix request request on the HG side.

Optionally, the S202 encapsulates an IPv6 prefix request message by using a Port Control Protocol (PCP), including:

Step 1: Receive an IPv6 prefix request request message of an IPv6 address pool if the IPv6 prefix request message includes an IPv6 prefix request request message;

Step 2: Encapsulating an IPv6 prefix request request message, and obtaining a PCP PD request request message.

In combination with the steps Step1 and Step2, in the embodiment of the present application, the PCP client unit receives the IPv6 prefix request request of the IPv6 Pool (IPv6 address pool) unit (ie, the IPv6 address pool in the embodiment of the present application) according to the internal structure of the HG. The message, the PCP client unit encapsulates the IPv6 prefix request request message (ie, the IPv6 prefix request request) according to the PCP protocol, and obtains a PCP PD request request message, that is, a PCP PD request request message.

Optionally, the encapsulated IPv6 prefix request message is sent to the broadband access server in S204, including:

Step1: Send a PCP PD request request message to the broadband access server.

Optionally, based on the encapsulated PCP PD request request message obtained by Step 1 and Step 2 in S202, the PCP client unit sends the PCP PD request request message to the BRAS.

Optionally, the receiving the response message returned by the broadband access server in S206, including:

Step1: Receive a PCP PD request response message returned by the broadband access server.

Step 2, parsing the PCP PD request response message, and obtaining an IPv6 prefix;

Step 3: Return the IPv6 prefix to the IPv6 address pool.

Optionally, in combination with Step 1 to Step 3 in S206, the PCP client unit receives the control protocol prefix returned by the BRAS to assign a PCP PD request response message, and obtains an IPv6 prefix by parsing the PCP PD request response message, thereby returning the IPv6 prefix. An IPv6 address pool, that is, an IPv6 pool (IPv6 address pool) unit in this embodiment of the present application.

Optionally, the IPv6 prefix includes: an IPv6 prefix address and an IPv6 prefix length.

Manner 2: The process of initiating an IPv6 prefix release request on the HG side.

Optionally, the STP encapsulates the IPv6 prefix request message by using the PCP, including:

Step 1: In the case that the IPv6 prefix request message includes an IPv6 prefix release request message, receive an IPv6 prefix release request message of the IPv6 address pool and an IPv6 prefix to be released;

Step 2: Encapsulating an IPv6 prefix release request message and an IPv6 prefix to be released, and obtaining a PCP PD release request message.

Optionally, Step 1 and Step 2 in the second mode S202 are different from S202 in the first mode. In the second mode, the PCP client unit of the HG receives the IPv6 prefix release request of the IPv6 Pool unit and the IPv6 prefix to be released, and further The IPv6 prefix release request and the IPv6 prefix to be released are encapsulated to obtain a PCP PD release request message.

Optionally, the encapsulated IPv6 prefix request message is sent to the broadband access server in S204, including:

Step1: Send a PCP PD release request message to the broadband access server.

Optionally, based on Step 1 and Step 2 in S202 of the second mode, the PCP client unit sends a PCP PD release request message to the BRAS.

Optionally, the receiving the response message returned by the broadband access server in S206, including:

Step 1: Receive a PCP PD release response message returned by the broadband access server.

Step 2, parsing the PCP PD release response message, and obtaining a release result, where the release result includes: release success or release failure;

Step 3, the release result is returned to the IPv6 address pool.

Optionally, in combination with Step 1 to Step 3 in S206, the PCP client unit receives the PCP PD release response message returned by the BRAS, and parses the PCP PD release response message to obtain a release result in the PCP PD release response message.

Here, the HG side can perform a corresponding processing flow according to the release result. For example, when the release result is a failure, the HG will notify the accessed user equipment of the result of the release failure, and/or initiate a second release process. That is, in the case of the second mode, S202 to S206.

In summary, the PCP client unit function of the HG entity includes: receiving an IPv6 prefix request request of the IPv6 Pool unit; sending a PCP PD request request message to the PCP server unit of the BRAS entity; and receiving the PCP PD request response returned by the PCP server unit of the BRAS entity. Message; parsing the IPv6 prefix from the PCP PD message and returning it to the IPv6 Pool unit.

The function of the PCP client unit of the HG entity further includes: receiving an IPv6 prefix release request of the IPv6 Pool unit and an IPv6 prefix to be released; sending a PCP PD release request message to the PCP server unit of the BRAS entity, and encapsulating the released IPv6 prefix to the PCP PD The release request message is received; the PCP PD release response message returned by the PCP server unit of the BRAS entity is received, and the response message includes a release result, and the release result includes: failure or success; and the release result is returned to the IPv6 Pool unit of the HG entity.

The IPv6 Pool unit function of the HG entity includes: requesting an IPv6 prefix from the PCP client unit; and receiving an IPv6 prefix returned by the PCP client unit.

The IPv6 Pool unit function of the HG entity further includes: requesting the release of the IPv6 prefix from the PCP client unit, and passing in the IPv6 prefix to be released; receiving the release result returned by the PCP client unit.

The embodiment of the invention further provides a communication protocol access device, comprising: a memory and a processor; wherein

A processor is configured to execute program instructions in the memory;

Program instructions perform the following operations on the processor read:

Encapsulating an Internet Protocol version 6 (IPv6) prefix request message through a Port Control Protocol (PCP);

Transmitting the encapsulated IPv6 prefix request message to the broadband access server;

Receiving a response message returned by the broadband access server.

Example 2

The embodiment of the present application provides another method for accessing a communication protocol. FIG. 3 is a flowchart of a method for accessing a communication protocol according to an embodiment of the present invention. As shown in FIG. 3, the broadband access server includes:

S302. Receive a gateway encapsulated IPv6 prefix request message by using a port control protocol (PCP).

S304. Acquire a response result corresponding to the IPv6 prefix request message.

S306, encapsulating the response result, and obtaining a response message;

S308. Return a response message to the gateway.

In conjunction with S302-S308, corresponding to the gateway device side of Embodiment 1, that is, the gateway side in S302 to S308, the BRAS in the embodiment of the present application receives the IPv6 prefix request message encapsulated by the gateway through the PCP server, that is, the BRAS. The PCP server unit of the entity receives the PCP PD request request message of the HG unit, requests the prefix pool (Prefix Pool) unit to apply for the IPv6 prefix, obtains the IPv6 prefix returned by the Prefix Pool unit, and encapsulates the IPv6 prefix to obtain a response message, and Return the response message to HG.

In the method for accessing the communication protocol provided by the embodiment of the present application, the port control protocol receives the IPv6 prefix request message encapsulated by the gateway; obtains the response result corresponding to the IPv6 prefix request message; encapsulates the response result, and obtains a response message; returns a response to the gateway. The message solves the problem that the IPv6 prefix cannot be allocated when the address allocation protocol is the neighbor discovery protocol ND in the related art, thereby achieving the effect of extending the IPv6 access of the home gateway.

Optionally, the IPv6 prefix request message includes: an IPv6 prefix request request message or an IPv6 prefix release request message.

In combination with the foregoing S302 to S308, in the embodiment of the present application, according to the type of the IPv6 prefix request message, the following two implementation manners are respectively included:

Manner 1: The BRAS side processes the IPv6 prefix request request.

Optionally, the receiving, by the port control protocol, the IPv6 prefix request message encapsulated by the gateway in S302 includes:

Step 1: In the case that the IPv6 prefix request message includes an IPv6 prefix request request message, the PCP PD request request message sent by the gateway is received by the PCP.

Optionally, the response result corresponding to the obtaining the IPv6 prefix request message in S304 is:

Step 1, requesting an IPv6 prefix from the prefix pool (Prefix Pool) according to the PCP PD request request message;

Step 2: Receive the IPv6 prefix returned by the prefix pool.

Optionally, the response result is encapsulated in S306, and the response message is:

Step1: Encapsulate the IPv6 prefix to obtain a PCP PD request response message.

Optionally, the returning the response message to the gateway in S308 includes:

Step1: Return a PCP PD request response message to the gateway.

Manner 2: The initiation process of the IPv6 prefix release request by the BRAS side.

Optionally, the receiving, by the PCP, the IPv6 prefix request message encapsulated by the gateway in the S302 includes:

Step 1: In the case that the IPv6 prefix request message includes an IPv6 prefix release request message, the PCP PD release request message sent by the gateway is received by the PCP.

Optionally, the response result corresponding to the obtaining the IPv6 prefix request message in S304 is:

Step 1: parsing the PCP PD release request message, and obtaining an IPv6 prefix to be released;

Step 2, requesting to release the IPv6 prefix to be released from the prefix pool according to the PCP PD release request message;

Step 3: Receive the release result returned by the prefix pool, and the release result includes: the release succeeds or the release fails.

Optionally, the response result is encapsulated in S306, and the response message is:

Step1, the package release result, and obtain a PCP PD release response message.

Optionally, the returning the response message to the gateway in S308 includes:

Step1: Return a PCP PD release response message to the gateway.

With reference to the gateway device (for example, HG) in Embodiment 1, FIG. 4 is a schematic structural diagram of a unit composition of an HG entity and a BRAS entity in the embodiment of the present invention; as shown in FIG. 4, the PCP server unit function of the BRAS entity includes: receiving HG. The PCP PD request request message of the unit; requesting the IPv6 prefix from the Prefix Pool unit; receiving the IPv6 prefix returned by the Prefix Pool unit; encapsulating the IPv6 prefix into the PCP PD request response message, and transmitting the PCP PD request response message to the HG unit PCP client unit.

The PCP server unit function of the BRAS entity further includes: receiving a PCP PD release request message of the HG unit, parsing the IPv6 prefix to be released from the message, requesting the release of the IPv6 prefix from the Prefix Pool unit, and transmitting the IPv6 prefix to be released; receiving the Prefix The release result returned by the Pool unit; the release result is encapsulated into the PCP PD release response message, and the PCP PD response message is sent to the PCP client unit of the HG unit.

The Prefix Pool unit function of the BRAS entity includes: receiving an IPv6 prefix request request of the PCP server unit; assigning an IPv6 prefix, and returning to the PCP server unit.

The function of the Prefix Pool unit of the BRAS entity further includes: receiving an IPv6 prefix release request of the PCP server unit; releasing the IPv6 prefix according to the incoming IPv6 prefix, and returning the release result to the PCP server unit.

The IPv6 prefix is the IPv6 prefix address and prefix length.

In conjunction with the embodiment 1 and the embodiment 2, in the embodiment of the present application, the PCP PD request message is a message type extended by the PCP protocol: when the PCP client needs to obtain an IPv6 prefix, the PCP PD request request message is encapsulated and sent to the PCP server; When the PCP client needs to release the IPv6 prefix, the PCP PD release request message is encapsulated and the released IPv6 prefix is encapsulated into a message and sent to the PCP server. The extended PCP protocol can be extended by adding Opcode or by adding new PCP options. When extended by Opcode, the Opcode parsed by the PCP server is of the PD type, and the PCP server allocates or releases the IPv6 prefix for the PCP client. When the PCP option is extended, the PD request option is added, and the PCP server parses the PD request option, PCP. The server allocates or releases an IPv6 prefix for the PCP client.

The PCP PD response message is a message type extended by the PCP protocol: when the PCP server receives the PCP PD request request message, allocates an IPv6 prefix, encapsulates the IPv6 prefix into the PCP PD request response message and returns it to the PCP client; when the PCP server receives the PCP PD The request message is released, and the IPv6 prefix to be released is encapsulated into the message. After the IPv6 prefix is released, the release result is encapsulated into a PCP PD release response message and returned to the PCP client. The extended PCP protocol can be extended by adding a new Opcode or by adding a new PCP option. When extended by Opcode, the PCP server encapsulates the assigned IPv6 prefix or the result of releasing the IPv6 prefix into the protocol protocol payload and sends it to the PCP client. The PCP client parses the IPv6 prefix from the protocol payload of the PCP PD response message or The result of releasing the IPv6 prefix. When the PCP option is extended, the PD option is added. The PCP server encapsulates the assigned IPv6 prefix or the result of releasing the IPv6 prefix into the PD option and sends it to the PCP client. The PCP client parses the IPv6 from the PD option of the PCP message. Prefix or release the result of the IPv6 prefix.

The embodiment of the invention further provides a communication protocol access device, comprising: a memory and a processor; wherein

A processor is configured to execute program instructions in the memory;

Program instructions perform the following operations on the processor read:

Receiving the encapsulated IPv6 prefix request message by the port control protocol (PCP);

Obtaining a response result corresponding to the IPv6 prefix request message;

Encapsulating the response result to obtain a response message;

A response message is returned to the gateway.

5 is a schematic diagram of an application procedure of an IPv6 prefix of an HG entity in the embodiment of the present invention; FIG. 5 illustrates an application procedure of an IPv6 prefix of an HG entity:

Step 501: The IPv6 Pool unit of the HG entity applies for an IPv6 prefix to the PCP client unit.

Step 502: The PCP client unit of the HG entity acquires the IPv6 Pool unit IPv6 of the HG entity. The prefix request encapsulates the PCP PD Request message and sends it to the BRAS entity.

Step 503: The PCP server unit of the BRAS entity receives the PCP PD request request message, and applies for an IPv6 prefix to the Prefix Pool unit of the BRAS entity.

Step 504: The Prefix Pool unit of the BRAS receives the IPv6 prefix application request of the PCP server unit of the BRAS entity, allocates an IPv6 prefix, and returns the PCP server unit to the BRAS entity. The PCP server unit of the BRAS entity encapsulates the IPv6 prefix into the PCP PD request response message and sends it to the HG entity.

Step 505: The PCP client unit of the HG entity receives the PCP PD request response message, parses the IPv6 prefix from the response message, and sends the IPv6 prefix to the IPv6 Pool unit of the HG entity.

Step 506: The IPv6 pool unit of the HG entity sets the IPv6 prefix obtained from the PCP client unit of the HG entity as an address pool. The address pool serves as an address resource to receive the address request of the home terminal to request an IPv6 address.

6 is a schematic diagram of a release procedure of an IPv6 prefix of an HG entity in the embodiment of the present invention; FIG. 6 illustrates a release process of an IPv6 prefix of an HG entity:

Step 601: The IPv6 Pool unit of the HG entity releases the IPv6 prefix to the PCP client unit, and transmits the IPv6 prefix to be released to the IPv6 Pool unit.

Step 602: The PCP client unit of the HG entity obtains an IPv6 Pool Unit IPv6 prefix release request of the HG entity, encapsulates the PCP PD release request message, and encapsulates the IPv6 prefix to be released into the message, and sends the message to the BRAS entity.

Step 603: The PCP server unit of the BRAS entity receives the PCP PD release request message, parses the IPv6 prefix to be released, requests the release of the IPv6 prefix from the Prefix Pool unit of the BRAS entity, and transmits the IPv6 prefix to be released.

Step 604: The Prefix Pool unit of the BRAS receives the IPv6 prefix release request of the PCP server unit of the BRAS entity, releases the IPv6 prefix according to the IPv6 prefix that needs to be released, and returns the result to the PCP server unit of the BRAS entity. The PCP server unit of the BRAS entity encapsulates the release result into a PCP PD release response message and sends it to the HG entity.

Step 605: The PCP client unit of the HG entity receives the PCP PD release response message, parses the release result from the response message, and sends the release result to the IPv6 Pool unit of the HG entity.

Step 606: The PCP client unit sends the release result. If the result is successful, the IPv6 pool unit of the HG entity releases the IPv6 prefix and is no longer used as the address pool of the home terminal; if it fails, the subsequent processing is performed, and the subsequent processing includes However, it is not limited to: giving a prompt to the user, initiating a release process, and the like.

7 is a schematic structural diagram of a home gateway access deployment network in the embodiment of the present invention. As shown in FIG. 7, the home terminal is connected to the home gateway, and the IPv6 address of the home terminal is allocated by the home gateway; the home gateway is connected through the network. To the BRAS, the IPv6 address of the home gateway and the IPv6 prefix used to allocate the IPv6 address pool for the home terminal are allocated by the BRAS.

FIG. 8 is a schematic flowchart of an IPv6 address and IPv6 prefix allocation process according to an embodiment of the present invention. As shown in FIG. 8, the IPv6 address and IPv6 prefix allocation process is as follows:

Step 801: The home gateway applies to the BRAS to obtain an IPv6 address of 2001::1. The usage protocol can be either the ND protocol or the DHCPv6. This process belongs to the process specified by the standard protocol and will not be described here.

Step 802: The home gateway initiates an IPv6 prefix application, and sends a PCP PD request request message to the BRAS.

Step 803: The IPv6 prefix allocated by the BRAS to the home gateway is 2011::/64, encapsulated into a PCP PD application response message, and sent to the home gateway. The home gateway parses the IPv6 prefix 2011::/64 from the PCP PD request response message, and uses the prefix as an IPv6 address pool to allocate an IPv6 address to the home terminal.

Step 804: The home terminal requests the home gateway to apply for an IPv6 address of 2011::1. The usage protocol can be either the ND protocol or the DHCPv6. This process belongs to the process specified by the standard protocol and will not be described here.

In summary, according to the present invention, the home gateway applies for the IPv6 prefix independently of the specific address configuration protocol. In particular, when the address configuration protocol is ND, the problem that the IPv6 prefix cannot be allocated is solved, and the IPv6 connection of the home gateway is greatly expanded. Into the application deployment.

Through the description of the above embodiments, those skilled in the art can clearly understand that the method according to the above embodiment can be implemented by means of software plus a necessary general hardware platform, and of course, by hardware, but in many cases, the former is A better implementation. Based on this understanding, this The technical solution of the invention may be embodied in the form of a software product, which is stored in a storage medium (such as a ROM/RAM, a magnetic disk, an optical disk), including several The instructions are for causing a terminal device (which may be a cell phone, a computer, a server, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

Example 3

In the embodiment, a device for accessing a communication protocol is provided, and the device is used to implement the foregoing embodiments and optional implementations, and details are not described herein. As used below, the term "module" may implement a combination of software and/or hardware of a predetermined function. Although the apparatus described in the following embodiments is preferably implemented in software, hardware, or a combination of software and hardware, is also possible and contemplated.

FIG. 9 is a structural block diagram of an apparatus for accessing a communication protocol according to Embodiment 3 of the present invention. As shown in FIG. 9, on the gateway device side, the apparatus includes: a packaging module 92, a sending module 94, and a receiving module 96, where

Encapsulating module 92, configured to encapsulate an IPv6 prefix request message by using a port control protocol;

The sending module 94 is configured to send the encapsulated IPv6 prefix request message to the broadband access server.

The receiving module 96 is configured to receive a response message returned by the broadband access server.

In the device for accessing the communication protocol provided by the embodiment of the present application, the IPv6 prefix request message is encapsulated by the port control protocol; the encapsulated IPv6 prefix request message is sent to the broadband access server; and the response message returned by the broadband access server is received. In the related art, when the address allocation protocol is the neighbor discovery protocol ND, the problem that the IPv6 prefix cannot be allocated, thereby achieving the effect of extending the IPv6 access of the home gateway.

Optionally, the IPv6 prefix request message includes: an IPv6 prefix request request message or an IPv6 prefix release request message.

FIG. 10 is a structural block diagram of an apparatus for accessing a communication protocol according to Embodiment 3 of the present invention. As shown in FIG. 10, the apparatus for accessing a communication protocol provided by the embodiment of the present application is specifically as follows:

Optionally, the encapsulating module 92 includes: a first receiving unit 921 and a first encapsulating module 922, where

The first receiving unit 921 is configured to receive an IPv6 prefix request request message of the IPv6 address pool if the IPv6 prefix request message includes an IPv6 prefix request request message;

The first encapsulating module 922 is configured to encapsulate an IPv6 prefix request request message, and obtain a PCP PD request request message.

Optionally, the sending module 94 includes: a first sending unit 941, where

The first sending unit 941 is configured to send a PCP PD request request message to the broadband access server.

Optionally, the receiving module 96 includes: a second receiving unit 961, a first parsing unit 962, and a second sending unit 963, where

The second receiving unit 961 is configured to receive a PCP PD request response message returned by the broadband access server;

The first parsing unit 962 is configured to parse the PCP PD request response message to obtain an IPv6 prefix.

The second sending unit 963 is configured to return the IPv6 prefix to the IPv6 address pool.

Optionally, the IPv6 prefix includes: an IPv6 prefix address and an IPv6 prefix length.

11 is a structural block diagram of another apparatus for accessing a communication protocol according to Embodiment 3 of the present invention. As shown in FIG. 11, the apparatus for accessing a communication protocol provided by the embodiment of the present application is specifically as follows:

Optionally, the encapsulating module 92 includes: a third receiving unit 923 and a second encapsulating unit 924, where

The third receiving unit 923 is configured to receive an IPv6 prefix release request message of the IPv6 address pool and an IPv6 prefix to be released if the IPv6 prefix request message includes an IPv6 prefix release request message;

The second encapsulating unit 924 is configured to encapsulate the IPv6 prefix release request message and the IPv6 prefix to be released, to obtain a PCP PD release request message.

Optionally, the sending module 94 includes: a third sending unit 942, where

The third sending unit 942 is configured to send a PCP PD release request message to the broadband access server.

Optionally, the receiving module 96 includes: a fourth receiving unit 964, a second parsing unit 965, and a fourth sending unit 966, wherein

The fourth receiving unit 964 is configured to receive a PCP PD release response message returned by the broadband access server.

The second parsing unit 965 is configured to parse the PCP PD release response message, and obtain a release result, where the release result includes: the release succeeds or the release fails;

The fourth sending unit 966 is configured to return the release result to the IPv6 address pool.

Example 4

In the embodiment, another device for accessing a communication protocol is provided. FIG. 12 is a structural block diagram of a device for accessing a communication protocol according to Embodiment 4 of the present invention. As shown in FIG. 12, on the side of the broadband access server, The device includes: a receiving module 1202, an obtaining module 1204, a packaging module 1206, and a sending module 1208, where

The receiving module 1202 is configured to receive, by using a port control protocol, a gateway encapsulated IPv6 prefix request message.

The obtaining module 1204 is configured to obtain a response result corresponding to the IPv6 prefix request message.

The encapsulating module 1206 is configured to encapsulate the response result and obtain a response message.

The sending module 1208 is configured to return a response message to the gateway.

The device accessing the communication protocol provided by the embodiment of the present application receives the IPv6 prefix request message encapsulated by the gateway through the port control protocol, obtains the response result corresponding to the IPv6 prefix request message, encapsulates the response result, and obtains a response message; returns a response to the gateway. The message solves the problem that the IPv6 prefix cannot be allocated when the address allocation protocol is the neighbor discovery protocol ND in the related art, thereby achieving the effect of extending the IPv6 access of the home gateway.

Optionally, the IPv6 prefix request message includes: an IPv6 prefix request request message or an IPv6 prefix release request message.

FIG. 13 is a structural block diagram of an apparatus for accessing a communication protocol according to Embodiment 4 of the present invention. As shown in FIG. 13, the apparatus for accessing a communication protocol provided by the embodiment of the present application is specifically as follows:

Optionally, the receiving module 1202 includes: a first receiving unit 12021, where

The first receiving unit 12021 is configured to receive, by using a port control protocol, a PCP PD request request message sent by the gateway, if the IPv6 prefix request message includes an IPv6 prefix request request message.

Optionally, the obtaining module 1204 includes: a first sending unit 12041 and a second receiving unit 12042, where

The first sending unit 12041 is configured to request an IPv6 prefix from the prefix pool Prefix Pool according to the PCP PD request request message.

The second receiving unit 12042 is configured to receive an IPv6 prefix returned by the prefix pool Prefix Pool.

Optionally, the encapsulating module 1206 includes: a first encapsulating unit 12061, where

The first encapsulating unit 12061 is configured to encapsulate an IPv6 prefix to obtain a PCP PD request response message.

Optionally, the sending module 1208 includes: a second sending unit 12081, where

The second sending unit 12081 is configured to return a PCP PD request response message to the gateway.

FIG. 14 is a structural block diagram of another apparatus for accessing a communication protocol according to Embodiment 4 of the present invention. As shown in FIG. 14, the apparatus for accessing a communication protocol provided by the embodiment of the present application is specifically as follows:

Optionally, the receiving module 1202 includes: a third receiving unit 12022, where

The third receiving unit 12022 is configured to receive, by using a port control protocol, a PCP PD release request message sent by the gateway, if the IPv6 prefix request message includes an IPv6 prefix release request message.

Optionally, the obtaining module 1204 includes: a parsing unit 12043, a third sending unit 12044, and a fourth receiving unit 12045, where

The parsing unit 12043 is configured to parse the PCP PD release request message, and obtain an IPv6 prefix to be released.

The third sending unit 12044 is configured to request, according to the PCP PD release request message, to release the IPv6 prefix to be released to the prefix pool Prefix Pool;

The fourth receiving unit 12045 is configured to receive the release result returned by the prefix pool Prefix Pool, and the release result includes: the release succeeds or the release fails.

Optionally, the encapsulating module 1206 includes: a second encapsulating unit 12062, where

The second encapsulating unit 12062 is configured to encapsulate the release result to obtain a PCP PD release response message.

Optionally, the sending module 1208 includes: a fourth sending unit 12082, where

The fourth sending unit 12082 is configured to return a PCP PD release response message to the gateway.

It should be noted that each of the above modules may be implemented by software or hardware. For the latter, the foregoing may be implemented by, but not limited to, the foregoing modules are all located in the same processor; or, the above modules are in any combination. The forms are located in different processors.

Example 5

In the embodiment, a system for accessing a communication protocol is provided. FIG. 15 is a structural block diagram of a system for accessing a communication protocol according to Embodiment 5 of the present invention. As shown in FIG. 15, the system includes: a gateway device 1501. And a broadband access server 1502, a gateway device and a broadband access server are in communication connection, wherein

The gateway device 1501 is the device for accessing the communication protocol shown in any of the foregoing FIG. 9 to FIG. 11;

The broadband access server 1502 is a device for accessing the communication protocol shown in any of the above-described FIGS. 12 to 14.

Example 6

Embodiments of the present invention also provide a storage medium. Optionally, in the embodiment, the foregoing storage medium may be configured to store program code for performing the following steps:

S1, encapsulating an IPv6 prefix request message by using a port control protocol;

S2. Send the encapsulated IPv6 prefix request message to the broadband access server.

S3. Receive a response message returned by the broadband access server.

Alternatively, the storage medium may also be arranged to store program code for performing the following steps:

S1. Receive an IPv6 prefix request request message of an IPv6 address pool if the IPv6 prefix request message includes an IPv6 prefix request request message.

S2: Encapsulating an IPv6 prefix request request message, and obtaining a PCP PD request request message.

Optionally, in this embodiment, the foregoing storage medium may include, but is not limited to: a USB flash drive, read only. A medium that can store program code, such as a memory (ROM, Read-Only Memory), a random access memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.

Optionally, in this embodiment, the processor sends a PCP PD request request message to the broadband access server according to the stored program code in the storage medium.

Optionally, in this embodiment, the processor performs a PCP PD request response message returned by the broadband access server according to the stored program code in the storage medium; parses the PCP PD request response message to obtain an IPv6 prefix; and returns the IPv6 prefix. IPv6 address pool.

Optionally, in this embodiment, the processor performs, according to the stored program code in the storage medium, the IPv6 prefix release request message of the IPv6 address pool and the to be released, if the IPv6 prefix request message includes the IPv6 prefix release request message. IPv6 prefix; encapsulates the IPv6 prefix release request message and the IPv6 prefix to be released, and obtains a PCP PD release request message.

Optionally, in this embodiment, the processor sends a PCP PD release request message to the broadband access server according to the stored program code in the storage medium.

Optionally, in this embodiment, the processor performs a PCP PD release response message returned by the broadband access server according to the stored program code in the storage medium; and parses the PCP PD release response message to obtain a release result, where the release result includes: The release succeeds or the release fails; the release result is returned to the IPv6 address pool.

For example, the specific examples in this embodiment may refer to the examples described in the foregoing embodiments and the optional embodiments, and details are not described herein again.

It will be apparent to those skilled in the art that the various modules or steps of the present invention described above can be implemented by a general-purpose computing device that can be centralized on a single computing device or distributed across a network of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device such that they may be stored in the storage device by the computing device and, in some cases, may be different from the order herein. The steps shown or described are performed, or they are separately fabricated into individual integrated circuit modules, or a plurality of modules or steps thereof are fabricated as a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software.

The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Various modifications and variations of the present invention are possible in the art. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present invention are intended to be included within the scope of the present invention.

One of ordinary skill in the art will appreciate that all or a portion of the above steps may be performed by a program to instruct related hardware, such as a processor, which may be stored in a computer readable storage medium, such as a read only memory, disk or optical disk. Wait. Alternatively, all or part of the steps of the above embodiments may also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the foregoing embodiment may be implemented in the form of hardware, for example, by implementing an integrated circuit to implement its corresponding function, or may be implemented in the form of a software function module, for example, being executed by a processor and stored in a memory. Programs/instructions to implement their respective functions. The invention is not limited to any specific form of combination of hardware and software.

The embodiments disclosed in the present application are as described above, but the descriptions are only for the purpose of understanding the present application, and are not intended to limit the present application, such as the specific implementation method in the embodiments of the present invention. Any modifications and changes in the form and details of the embodiments may be made by those skilled in the art without departing from the spirit and scope of the disclosure. The scope defined by the appended claims shall prevail.

Industrial applicability

The embodiment of the invention implements the allocation of the IPv6 prefix in the case that the address allocation protocol is the neighbor discovery protocol ND, and expands the effect of the IPv6 access of the home gateway.

Claims (39)

A method for accessing a communication protocol, comprising: Encapsulating the Internet Protocol version 6 IPv6 prefix request message through the port control protocol PCP; Transmitting the encapsulated IPv6 prefix request message to the broadband access server; Receiving a response message returned by the broadband access server. The method of claim 1, wherein the IPv6 prefix request message comprises an IPv6 prefix request request message or an IPv6 prefix release request message. The method of claim 2, wherein the encapsulating the IPv6 prefix request message by the PCP comprises: And receiving, in the case that the IPv6 prefix request message includes an IPv6 prefix request request message, the IPv6 prefix request request message sent by the IPv6 address pool; Encapsulating the IPv6 prefix request request message, and obtaining a PCP prefix assignment PD application request message. The method of claim 3, wherein the transmitting the encapsulated IPv6 prefix request message to the broadband access server comprises: Sending the PCP PD Request Request message to the broadband access server. The method of claim 4, wherein the receiving the response message returned by the broadband access server comprises: Receiving a PCP PD request response message returned by the broadband access server; Parsing the PCP PD request response message to obtain an IPv6 prefix; Returning the IPv6 prefix to the IPv6 address pool. The method of claim 5, wherein the IPv6 prefix comprises: an IPv6 prefix address and an IPv6 prefix length. The method of claim 2, wherein the encapsulating the IPv6 prefix request message by the PCP comprises: And receiving, in the case that the IPv6 prefix request message includes an IPv6 prefix release request message, an IPv6 prefix release request message of an IPv6 address pool and an IPv6 prefix to be released; The IPv6 prefix release request message and the IPv6 prefix to be released are encapsulated to obtain a PCP PD release request message. The method of claim 7, wherein the transmitting the encapsulated IPv6 prefix request message to the broadband access server comprises: Sending the PCP PD Release Request message to the broadband access server. The method of claim 8, wherein the receiving the response message returned by the broadband access server comprises: Receiving a PCP PD release response message returned by the broadband access server; Parsing the PCP PD release response message to obtain a release result, where the release result includes: a release success or a release failure; Returning the release result to the IPv6 address pool. A method for accessing a communication protocol, comprising: Receiving the encapsulated IPv6 prefix request message by the port control protocol PCP; Obtaining a response result corresponding to the IPv6 prefix request message; Encapsulating the response result to obtain a response message; Returning the response message to the gateway. The method of claim 10, wherein the IPv6 prefix request message comprises an IPv6 prefix request request message or an IPv6 prefix release request message. The method of claim 11, wherein the receiving, by the PCP, the encapsulated IPv6 prefix request message comprises: In the case that the IPv6 prefix request message includes an IPv6 prefix request request message, the PCP prefix transmission PD application request message is sent by the PCP receiving gateway. The method according to claim 12, wherein the obtaining a response result corresponding to the IPv6 prefix request message comprises: Requesting an IPv6 prefix from the prefix pool according to the PCP PD request request message; Receiving the IPv6 prefix returned by the prefix pool. The method of claim 13 wherein said encapsulating said response result is obtained The response message includes: Encapsulating the IPv6 prefix to obtain a PCP PD request response message. The method of claim 14, wherein said returning said response message to said gateway comprises: Returning the PCP PD request response message to the gateway. The method of claim 11, wherein the receiving, by the PCP, the encapsulated IPv6 prefix request message comprises: In the case that the IPv6 prefix request message includes an IPv6 prefix release request message, the PCP PD release request message sent by the gateway is received by the PCP. The method according to claim 16, wherein the obtaining the response result corresponding to the IPv6 prefix request message comprises: Parsing the PCP PD release request message to obtain an IPv6 prefix to be released; And requesting to release the IPv6 prefix to be released to the prefix pool according to the PCP PD release request message; Receiving a release result returned by the prefix pool, the release result includes: a release success or a release failure. The method according to claim 17, wherein said encapsulating said response result and obtaining a response message comprises: The release result is encapsulated to obtain a PCP PD release response message. The method of claim 18 wherein said returning said response message to said gateway comprises: Returning the PCP PD release response message to the gateway. A device for accessing a communication protocol, comprising: Encapsulating module configured to encapsulate an Internet Protocol version 6 IPv6 prefix request message through a port control protocol PCP; a sending module, configured to send the encapsulated IPv6 prefix request message to the broadband access server; The receiving module is configured to receive a response message returned by the broadband access server. The apparatus according to claim 20, wherein the IPv6 prefix request message comprises an IPv6 prefix request request message or an IPv6 prefix release request message. The device of claim 21, wherein the package module comprises: The first receiving unit is configured to receive an IPv6 prefix request request message of the IPv6 address pool if the IPv6 prefix request message includes an IPv6 prefix request request message; The first encapsulating module is configured to encapsulate the IPv6 prefix request request message, and obtain a PCP prefix assignment PD request request message. The apparatus of claim 22, wherein the transmitting module comprises: The first sending unit is configured to send the PCP PD request request message to the broadband access server. The apparatus of claim 23, wherein the receiving module comprises: a second receiving unit, configured to receive a PCP PD request response message returned by the broadband access server; a first parsing unit configured to parse the PCP PD request response message to obtain an IPv6 prefix; The second sending unit is configured to return the IPv6 prefix to the IPv6 address pool. The apparatus of claim 24, wherein the IPv6 prefix comprises: an IPv6 prefix address and an IPv6 prefix length. The device of claim 21, wherein the package module comprises: a third receiving unit, configured to receive an IPv6 prefix release request message of an IPv6 address pool and an IPv6 prefix to be released, if the IPv6 prefix request message includes an IPv6 prefix release request message; And a second encapsulating unit, configured to encapsulate the IPv6 prefix release request message and the IPv6 prefix to be released, to obtain a PCP PD release request message. The apparatus of claim 26, wherein the transmitting module comprises: And a third sending unit, configured to send the PCP PD release request message to the broadband access server. The apparatus of claim 27, wherein the receiving module comprises: a fourth receiving unit, configured to receive a PCP PD release response message returned by the broadband access server; a second parsing unit, configured to parse the PCP PD release response message, to obtain a release result, where the release result includes: a release success or a release failure; And a fourth sending unit, configured to return the release result to the IPv6 address pool. A device for accessing a communication protocol, comprising: The receiving module is configured to receive, by the port control protocol PCP, a gateway encapsulated Internet Protocol version 6 IPv6 prefix request message; Obtaining a module, configured to obtain a response result corresponding to the IPv6 prefix request message; a packaging module, configured to encapsulate the response result, and obtain a response message; And a sending module, configured to return the response message to the gateway. The apparatus according to claim 29, wherein the IPv6 prefix request message comprises an IPv6 prefix request request message or an IPv6 prefix release request message. The apparatus of claim 30, wherein the receiving module comprises: The first receiving unit is configured to receive, by using the PCP, a PCP PD request request message sent by the gateway, in a case that the IPv6 prefix request message includes an IPv6 prefix request request message. The apparatus of claim 31, wherein the obtaining module comprises: The first sending unit is configured to request an IPv6 prefix from the prefix pool according to the PCP PD request request message; And a second receiving unit, configured to receive the IPv6 prefix returned by the prefix pool. The device of claim 32, wherein the encapsulation module comprises: The first encapsulating unit is configured to encapsulate the IPv6 prefix to obtain a PCP PD request response message. The apparatus of claim 33, wherein the transmitting module comprises: The second sending unit is configured to return the PCP PD request response message to the gateway. The apparatus of claim 30, wherein the receiving module comprises: And a third receiving unit, configured to: when the IPv6 prefix request message includes an IPv6 prefix release request message, receive, by using the port control protocol, a PCP PD release request message sent by the gateway. The apparatus of claim 35, wherein the obtaining module comprises: a parsing unit configured to parse the PCP PD release request message to obtain an IPv6 prefix to be released; a third sending unit, configured to request, according to the PCP PD release request message, to release the IPv6 prefix to be released from the prefix pool; And a fourth receiving unit, configured to receive a release result returned by the prefix pool, where the release result includes: a release success or a release failure. The device of claim 36, wherein the package module comprises: And a second encapsulating unit configured to encapsulate the release result to obtain a PCP PD release response message. The apparatus of claim 37, wherein the transmitting module comprises: And a fourth sending unit, configured to return the PCP PD release response message to the gateway. A system for accessing a communication protocol, comprising: a gateway device and a broadband access server, wherein the gateway device and the broadband access server are in communication connection, wherein The gateway device includes the device for accessing a communication protocol according to any one of claims 20 to 28; The broadband access server comprises the apparatus for accessing a communication protocol according to any one of claims 29 to 38.

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