CN101026547A - Method and system for accessing Intranct IPv6 host into global IPv6 network - Google Patents
Method and system for accessing Intranct IPv6 host into global IPv6 network Download PDFInfo
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- CN101026547A CN101026547A CNA2006100113490A CN200610011349A CN101026547A CN 101026547 A CN101026547 A CN 101026547A CN A2006100113490 A CNA2006100113490 A CN A2006100113490A CN 200610011349 A CN200610011349 A CN 200610011349A CN 101026547 A CN101026547 A CN 101026547A
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Abstract
Through coordination between Intranet network tunnel proxy (INTP) and public network tunnel proxy (PNTP), the method establishes a virtual tunnel so as to connect IPv6 host in IPv4 Intranet to global IPv6 network. In the invention, INTP appears as an IPv6 router for IPv6 host in Intranet. Before being forwarded, IPv6 packet is packaged as HTTP Request message, and then, through HTTP proxy server, the HTTP Request message is sent to PNTP, which is a special 6to4 relaying router. Receiving HTTP Request message from interface connected to IPv4 network, the PNTP de-packages out IPv6 packet, and sends it out through interface connected to IPv6 network. IPv6 host behind IPv4 HTTP proxy server can be connected to global IPv6 network seamlessly by using the method. INTP and PNTP are transparent for IPv6 host in Intranet and global IPv6 network.
Description
Technical field
The present invention relates to the network tunnel technology, the particularly a kind of IPv4 of passing through http proxy server is set up the method that virtual channel inserts the IPv6 main frame among the Intranet (Intranet) global IPv 6 network.
Background technology
Possessed the not available numerous advantages of IPv4 though be born with in IPv6 days, support or the like as the automatic allocative abilities in address space, address of super large, good mobility, but for ISP and terminal use, (as " application of killer's level " based on IPv6) forces them to have to move to IPv6 unless have adequate reasons, otherwise they also can use existing IPv4 network in large quantities.That is to say, in the quite a long time, will keep IPv4 network and the network coexisted situation of IPv6 on the Internet (Internet).So the interoperability that how to guarantee these two kinds of networks will be a long-term problem.In present employed transit mechanism, tunneling technique, particularly automatic tunnel technology are simple and can keep between the main frame end to end that communication capacity has obtained using widely because of its configuration.In simple terms, tunneling technique be exactly with the IPv6 packet encapsulation in IPv4 grouping, utilize the infrastructure of IPv4 to be sent to another end points from an end points.As long as these two end points are all understood the form of packet encapsulation, the IPv6 grouping just can be passed through the IPv4 core net, and two IPv6 " isolated island " are coupled together.
The tunneling technique of current popular, each all has its specific application scenarios.Such as, 6over4 uses the IPv6 address of compatible IPv4, and it requires main frame must be two stacks, and has an IPv4 address that the overall situation is unique.The prefix 2002:V4ADDR: that 6to4 uses IANA to distribute :/48 make the IPv6 main frame among the Intranet to interconnect, and the 6to4 main frame also can be connected to global IPv 6 network by the 6to4 relay router among 6to4 router and the Internet simultaneously.The Teredo that Microsoft proposes is that it makes these main frames can pass through multi-layer NAT and is connected to global IPv 6 network for the IPv6 host design of NAT back, but its technology is comparatively complicated, and needs the support of Teredo server and Teredo repeater.ISATAP then makes the IPv6 main frame among the Intranet not need special configuration, does not even need the IPv6 router just can direct interconnection, also can insert global IPv 6 network by the ISATAP router simultaneously.
Above these tunneling techniques, particularly 6to4 and ISATAP, all than being easier to configuration, and obtained the support of most of mainstream operation system, but its application scenarios does not but meet the present situation of the Intranet of existing a large amount of enterprises and institutions.The basic characteristics of these Intranet are, the inner private IP address of using is not enabled NAT, and the unique channel that internal host is connected to Internet is to pass through http proxy server.This just makes 6to4 router and ISATAP router to dispose, because they all need a global I Pv4 address directly to arrive being connected of Internet with one.IPv6 main frame among this Intranet is connected among the Internet, and does not influence current that disposed, ripe infrastructure, just must make IPv6 divide into groups to pass through http proxy server among the Intranet with certain method.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of method of passing through http proxy server with the access of the IPv6 main frame among Intranet global IPv 6 network, makes the IPv6 main frame that is positioned at IPv4 http proxy server back can seamlessly be connected to global IPv 6 network.
For realizing above-mentioned purpose of the present invention, the invention provides a kind of method that IPv6 main frame among the Intranet is inserted global IPv 6 network, the IPv4 http proxy server that is used for passing through Intranet is set up IPv6 main frame among the Intranet and the virtual channel between global IPv 6 network, wherein, comprising:
Step a is provided with an Intranet tunnel agent and a public network tunnel agent that can be connected to simultaneously on IPv4 Internet and the IPv6 Internet is being set between IPv4 http proxy server and global IPv 6 network between IPv6 main frame in Intranet and IPv4 http proxy server;
Step b, described Intranet tunnel agent becomes the HTTP request message with the IPv6 packet encapsulation, and then by http proxy server described HTTP request message is sent on the described public network tunnel agent;
Step c, described public network tunnel agent receives described HTTP request message from the interface of itself and IPv4 network, deblocking takes on IPv6 grouping from described HTTP request message, and the interface of IPv6 grouping by described public network tunnel agent and IPv6 network is sent on the respective host in the global IPv 6 network.
Described method, wherein, described step a further comprises:
Step a1, Intranet tunnel agent utilize the address architecture of IPv4 http proxy server to go out an IPv6 address prefix, and it is distributed to IPv6 main frame among the Intranet;
Step a2, the IPv6 main frame among the described Intranet obtains the unique IPv6 address of an overall situation according to described prefix and the interface ID of oneself.
Described method wherein, comprises further that in described step b described Intranet tunnel agent connects the step that described HTTP request message is sent to http proxy server by TCP.
Described method, wherein, described step c further comprises;
Step c1, described public network tunnel agent will deblocking takes on from described HTTP request message the IPv6 grouping be encapsulated into again in the IPv4 grouping by the form of 6to4;
Step c2, the receiving interface of the IPv4 protocol stack of described public network tunnel agent dress up the IPv6 grouping by the 6to4 flow process with described IPv4 grouping carrying out again deblocking after the IPv6 routing procedure is forwarded on the respective host in the described global IPv 6 network.
Described method wherein, further comprises after described step c:
Steps d, the main frame in the described global IPv 6 network sends a respond packet;
Step e, described public network tunnel agent is packaged into the http response message with described respond packet and sends to described Intranet tunnel agent by http proxy server;
Step f, described Intranet tunnel agent is dressed up described http response message deblocking on the IPv6 main frame that sends to after IPv6 divides into groups among the described Intranet.
Described method, wherein, described Intranet tunnel agent is an IPv4/IPv6 dual stack main frame, it has only privately owned IPv4 address.
Described method, wherein, described outer net tunnel agent is a 6to4 relay router, and it has global I Pv4 address, can directly connect with any other main frame among the IPv4 Internet, and it also has been connected in the described global IPv 6 network simultaneously.
Described method, wherein, the IPv6 main frame among the described Intranet has the 6to4 address prefix of standard.
Described method, wherein, described Intranet tunnel agent and/or described public network tunnel agent are provided with the grouping screening washer at it above the data link layer, be used for when grouping when satisfying certain condition with its intercepting and capturing and deal with.
Described method, wherein, described Intranet tunnel agent and/or described public network tunnel agent further comprise packet handler, are used to the grouping screening washer deal with data that is provided with on described Intranet tunnel agent and/or the described public network tunnel agent.
The present invention also provides a kind of system that IPv6 main frame among the Intranet is inserted global IPv 6 network, the IPv4 http proxy server that is used for passing through Intranet is set up IPv6 main frame among the Intranet and the virtual channel between global IPv 6 network, wherein, comprising:
One Intranet tunnel agent is arranged between the IPv6 main frame and IPv4 http proxy server among the Intranet;
One public network tunnel agent is arranged between IPv4 http proxy server and the global IPv 6 network, can be connected to simultaneously on IPv4 Internet and the IPv6 Internet;
Wherein, described Intranet tunnel agent is used for the IPv6 packet encapsulation is become the HTTP request message, and by http proxy server described HTTP request message is sent on the described public network tunnel agent; Described public network tunnel agent is used for receiving described HTTP request message from the interface of itself and IPv4 network, deblocking takes on IPv6 grouping from described HTTP request message, and the interface of IPv6 grouping by described public network tunnel agent and IPv6 network is sent on the main frame in the global IPv 6 network.
Described system, wherein, described Intranet tunnel agent is an IPv4/IPv6 dual stack main frame, it has only privately owned IPv4 address; And/or described outer net tunnel agent is a 6to4 relay router, and it has global I Pv4 address, can directly connect with any other main frame among the IPv4 Internet, and it also has been connected in the described global IPv 6 network simultaneously; And/or the IPv6 main frame among the described Intranet has the 6to4 address prefix of standard.
Described system, wherein, described Intranet tunnel agent and/or described public network tunnel agent are provided with the grouping screening washer at it above the data link layer, be used for when grouping when satisfying certain condition with its intercepting and capturing and deal with.
Described system, wherein, described Intranet tunnel agent and/or described public network tunnel agent further comprise packet handler, are used to the grouping screening washer deal with data that is provided with on described Intranet tunnel agent and/or the described public network tunnel agent.
Core concept of the present invention is: the Intranet tunnel agent that is arranged in Intranet, show as an IPv6 router for the IPv6 main frame among the Intranet, but before transmitting the IPv6 grouping, earlier it is packaged into HTTP Request message, sends it on the public network tunnel agent by http proxy server again.The public network tunnel agent is a special 6to4 relay router, and it receives HTTP Request message from the interface that links to each other with the IPv4 network, and deblocking takes on the IPv6 grouping, it is sent by the interface that links to each other with the IPv6 network again.
Utilize method and system of the present invention to finish to pass through the IPv4 http proxy server and set up the dummy bidirectional tunnel.Finish the foundation of virtual channel by the cooperation of Intranet tunnel agent and public network tunnel agent, make the IPv6 main frame that is arranged in IPv4 http proxy server back can seamlessly be connected to global IPv 6 network, and Intranet tunnel agent and public network tunnel agent all are transparent to the IPv6 main frame in Intranet and the global IPv 6 network.In whole process, IPv6 main frame perception among the Intranet is less than all encapsulation and decapsulation process, the http proxy server perception is less than the grouping of the IPv6 in the HTTP Request/Response message, and the 6to4 Relay Server thinks that then http proxy server is a 6to4 router that is arranged in Intranet.
Description of drawings
Fig. 1 is the schematic diagram that the method for application one embodiment of the invention is carried out networking;
Wherein, Reference numeral is as follows:
The 001-IPv6 host A;
002-Intranet tunnel agent;
The 003-IPv4 http proxy server;
004-IPv4 Intranet (IPv4 Intranet);
005-IPv4 Internet (IPv4 Internet);
006-public network tunnel agent;
007-IPv6 Internet (IPv6 Internet);
The 008-IPv6 host B;
100,101,200,201,300,301,400,401,500,501,600, the 601-arrow, be used to represent the direction and the process of packet flows.
Embodiment
The invention discloses a kind of http proxy server that passes through, the IPv6 main frame among the IPv4 Intranet is inserted the method for IPv6 Internet by the cooperation of Intranet tunnel agent and public network tunnel agent.The enforcement of the inventive method comprises the steps:
Finding router by neighbor discovery mechanisms behind the IPv6 host-initiated among the Intranet is the Intranet tunnel agent, obtains the 6to4 prefix simultaneously, forms the IPv6 address of oneself.This address is that the overall situation is unique.Wherein, the IPv6 main frame among the Intranet has the 6to4 address prefix of standard, i.e. 2002:V4ADDR: :/48, and wherein V4ADDR is the global I Pv4 address of http proxy server.This prefix is included in the carried router notification message of Intranet tunnel agent, need be configured by the IPv6 main frame.The IPv6 main frame does not need to do any configuration about the tunnel yet.The Intranet tunnel agent also is positioned at Intranet, and it is an IPv4/IPv6 dual stack main frame, and its IPv4 address is a privately owned address.
When the IPv6 main frame among the Intranet need be visited other main frame in the global IPv 6 network, it sent to the IPv6 grouping on the Intranet tunnel agent.The Intranet tunnel agent is provided with a grouping screening washer at link layer, and it is intercepted and captured these groupings and gives a special packet handler that is positioned at application layer and handle.Packet handler is safeguarding that the TCP of a http proxy server in the Intranet connects, its IPv6 packet encapsulation that these are to be transmitted becomes HTTP Request message, address among the URL is the IPv4 address of public network tunnel agent, and sends by this TCP connection.
Http proxy server among the Intranet has at least one private ip v4 address and a global I Pv4 address, and its receives HTTP Request message that Intranet tunnel agent sends over and it is forwarded on the IPv4 Internet.
These HTTP Request messages finally are sent on the public network tunnel agent.The public network tunnel agent is a special 6to4 relay router.Different with general 6to4 relay router is that it has the grouping screening washer and the packet handler that is positioned at application layer that are positioned at link layer.Packet handler is monitored all Web from the IPv4 network at 80 ports and is connected, after it receives these special HTTP Request messages, at first deblocking takes on the IPv6 grouping in these messages, then it is encapsulated as again the IPv4 grouping, wherein the IPv4 source address is the global I Pv4 address of http proxy server, and destination address is the IPv4 address of 6to4 relay router.These IPv4 groupings are sent to the grouping screening washer, are submitted to the receiving interface of IPv4 protocol stack by it, are forwarded on the destination host of global IPv 6 network after the decapsulation again by normal 6to4 flow process then.
The grouping of the IPv6 main frame of the main frame from global IPv 6 network in the Intranet is transmitted the back on the public network tunnel agent through the one or many of router in the IPv6 network.The public network tunnel agent becomes the IPv4 grouping by normal 6to4 flow process with these packet encapsulation, and wherein source address is the IPv4 address of self, and destination address is the IPv4 address of http proxy server, and the interface of these groupings by the IPv4 protocol stack is sent.But at link layer, these groupings are grouped screening washer and intercept and capture and give packet handler.Packet handler at first deblocking takes on IPv6 grouping, and then it is packaged into HTTP Response message again, sends to before in the TCP connection of being set up by the http proxy server of Intranet.
The http proxy server of Intranet sends to these HTTP Response messages on the Intranet tunnel agent.
After the packet handler of Intranet tunnel agent is received these HTTP Response messages, its deblocking is dressed up the IPv6 grouping, give the grouping screening washer then, these groupings are submitted to the transmission interface of IPv6 protocol stack, send among the Intranet on the corresponding IPv6 destination host by it.
Finished the foundation in dummy bidirectional tunnel by above step.In whole process, IPv6 main frame perception among the Intranet is less than all encapsulation and decapsulation process, the http proxy server perception is less than the grouping of the IPv6 in the HTTP Request/Response message, and the 6to4 Relay Server thinks that then http proxy server is a 6to4 router that is arranged in Intranet.
Be described in further detail below in conjunction with the enforcement of accompanying drawing technical scheme:
Fig. 1 is the schematic diagram that the method for application one embodiment of the invention is carried out networking.Comprise in networking shown in Figure 1: IPv4 Intranet 004, an IPv6 host A 001 among this Intranet; Intranet tunnel agent 002, it is an IPv4/IPv6 dual stack main frame, serves as the router of host A; IPv4HTTP acting server 003 among the Intranet, the All hosts among the Intranet all can only be connected among the Internet by it; IPv4 Internet 005, all have global I Pv4 address of host and all are connected on this network; Public network tunnel agent 006, it can be connected on IPv4 Internet and the IPv6 Internet simultaneously; It shows as a special 6to4 Relay Server in realization; IPv6 Internet 007, the All hosts in this network are IPv6 main frame or IPv4/IPv6 dual stack main frame, and router is only transmitted the IPv6 grouping; IPv6 host B 008 on the IPv6 Internet.In this schematic diagram, the application program in the IPv6 host A 001 among the Intranet wishes to connect with the application program in the IPv6 host B on the IPv6 Internet.Direction and the process of representing packet flows among the figure with arrow 100,101,200,201,300,301,400,401,500,501,600,601.
According to Fig. 1, do following symbol definition: the IPv6 address of representing the main frame 001 among the IPv4 Intranet with IPv6_001; IPv4 address and the IPv6 address of representing the Intranet tunnel agent 002 among the IPv4 Intranet with IPv4_002 and IPv6_002 respectively; The IPv4 address of representing the http proxy server 003 among the IPv4 Intranet with IPv4_003; IPv4 address and the IPv6 address of representing public network tunnel agent 006 with IPv4_006 and IPv6_006 respectively; The IPv6 address of representing the main frame 008 among the IPv6 Internet with IPv6_008.
After IPv6 host A 001 starts, find the IPv6 router by the normal neighbor discovery mechanisms of IPv6, promptly the Intranet tunnel agent 002, and it is added the default route item.Intranet tunnel agent 002 utilizes IPv4_003 to construct an IPv6 address prefix 2002:IPv4_003: :/48, and it is distributed to main frame 001, main frame 001 is combined IPv6 address that the overall situation is unique of acquisition, back with this prefix and own interface ID.
When the application program in the main frame 001 wished to be connected to main frame 008, it sent an IPv6 grouping for Intranet tunnel agent 002 in the direction of arrow 100 expressions, and request is transmitted.The source address of this grouping is the IPv6 address ip v6_001 of main frame 001, and destination address is the IPv6 address ip v6_008 of main frame 008.Intranet tunnel agent 002 is safeguarding that a TCP to acting server 003 connects, when it receives the IPv6 grouping of main frame 001, it becomes HTTP Request message with this packet encapsulation, this message is connected by the said TCP in front to send to acting server 003 from 200 directions then.In the head of this HTTP message, Intranet tunnel agent 002 uses the POST order of http protocol.Original IPv6 grouping then is encapsulated in the message text with a kind of self-defining mime type.
Acting server 003 perception is less than the existence in tunnel.It is according to normal HTTP Proxy service procedure, and the HTTP Request message that 002 request of Intranet tunnel agent is transmitted sends to public network tunnel agent 006 through the IPv4 routing procedure shown in arrow 300 and 400 etc.
Public network tunnel agent 006 is a special 6to4 relay router, and it starts http server at 80 ports and monitors the Web connection of importing into.After it receives the HTTPRequest message that http proxy server 003 sends, it at first deblocking take on IPv6 grouping in this message, the form according to 6to4 is encapsulated into it in IPv4 grouping again then.Again after the encapsulation, the global I Pv4 address that the IPv4 source address in the grouping becomes acting server 003 is IPv4_003, and it is IPv4_006 that destination address then becomes relay router 006 IPv4 address own.This grouping is submitted to the receiving interface of IPv4 protocol stack of relay router 006 again, is forwarded on the IPv6 main frame 008 through IPv6 routing procedures such as 500 and 600 after the decapsulation again by normal 6to4 flow process then.
IPv6 main frame 008 handle from IPv6 main frame 001 this grouping after, send a respond packet to it.This grouping arrives public network tunnel agent 006 after passing through the IPv6 routing procedure of representing in arrow 601 and 501 etc.Public network tunnel agent 006 becomes the IPv4 grouping by normal 6to4 flow process with this packet encapsulation earlier, and wherein source address is IPv4_006, and destination address is IPv4_003, and the interface of these groupings by the IPv4 protocol stack is sent.But at link layer, this grouping is packaged into HTTP Response message after by decapsulation more again, and the IPv4 routing procedure of representing through arrow 401 and 301 etc. sends it back http proxy server 003.
By above process, just set up a dummy bidirectional tunnel that connects IPv6 main frame 001 and IPv6 main frame 008.
The present invention has realized a kind of http proxy server that passes through, and the IPv6 main frame among the IPv4 Intranet is inserted the method for IPv6 Internet by the cooperation of Intranet tunnel agent and public network tunnel agent.The advantage of method proposed by the invention is to meet most of Intranet to utilize http proxy server to insert the present situation of Internet, do not need to change existing any infrastructure among the Intranet, and the foundation in tunnel is transparent fully to the IPv6 main frame among the Intranet.Utilize method provided by the present invention, the IPv6 subnet among large-scale IPv4 Intranet can be connected in the global IPv 6 network like a cork.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (14)
1, a kind of IPv6 main frame among the Intranet is inserted the method for global IPv 6 network, the IPv4 http proxy server that is used for passing through Intranet is set up IPv6 main frame among the Intranet and the virtual channel between global IPv 6 network, it is characterized in that, comprising:
Step a is provided with an Intranet tunnel agent and a public network tunnel agent that can be connected to simultaneously on IPv4 Internet and the IPv6 Internet is being set between IPv4 http proxy server and global IPv 6 network between IPv6 main frame in Intranet and IPv4 http proxy server;
Step b, described Intranet tunnel agent becomes the HTTP request message with the IPv6 packet encapsulation, and then by http proxy server described HTTP request message is sent on the described public network tunnel agent;
Step c, described public network tunnel agent receives described HTTP request message from the interface of itself and IPv4 network, deblocking takes on IPv6 grouping from described HTTP request message, and the interface of IPv6 grouping by described public network tunnel agent and IPv6 network is sent on the respective host in the global IPv 6 network.
2, method according to claim 1 is characterized in that, described step a further comprises:
Step a1, Intranet tunnel agent utilize the address architecture of IPv4 http proxy server to go out an IPv6 address prefix, and it is distributed to IPv6 main frame among the Intranet;
Step a2, the IPv6 main frame among the described Intranet obtains the unique IPv6 address of an overall situation according to described prefix and the interface ID of oneself.
3, method according to claim 2 is characterized in that, comprises further that in described step b described Intranet tunnel agent connects the step that described HTTP request message is sent to http proxy server by TCP.
4, method according to claim 3 is characterized in that, described step c further comprises;
Step c1, described public network tunnel agent will deblocking takes on from described HTTP request message the IPv6 grouping be encapsulated into again in the IPv4 grouping by the form of 6to4;
Step c2, the receiving interface of the IPv4 protocol stack of described public network tunnel agent dress up the IPv6 grouping by the 6to4 flow process with described IPv4 grouping carrying out again deblocking after the IPv6 routing procedure is forwarded on the respective host in the described global IPv 6 network.
5, method according to claim 1 is characterized in that, further comprises after described step c:
Steps d, the main frame in the described global IPv 6 network sends a respond packet;
Step e, described public network tunnel agent is packaged into the http response message with described respond packet and sends to described Intranet tunnel agent by http proxy server;
Step f, described Intranet tunnel agent is dressed up described http response message deblocking on the IPv6 main frame that sends to after IPv6 divides into groups among the described Intranet.
According to the described method of arbitrary claim among the claim 1-5, it is characterized in that 6, described Intranet tunnel agent is an IPv4/IPv6 dual stack main frame, it has only privately owned IPv4 address.
7, method according to claim 6, it is characterized in that described outer net tunnel agent is a 6to4 relay router, it has global I Pv4 address, can directly connect with any other main frame among the IPv4 Internet, it also has been connected in the described global IPv 6 network simultaneously.
8, method according to claim 1 is characterized in that, the IPv6 main frame among the described Intranet has the 6to4 address prefix of standard.
9, according to the described method of arbitrary claim among claim 1-5, the 7-8, it is characterized in that, described Intranet tunnel agent and/or described public network tunnel agent are provided with the grouping screening washer at it above the data link layer, be used for when grouping when satisfying certain condition with its intercepting and capturing and deal with.
10, method according to claim 9, it is characterized in that, described Intranet tunnel agent and/or described public network tunnel agent further comprise packet handler, are used to the grouping screening washer deal with data that is provided with on described Intranet tunnel agent and/or the described public network tunnel agent.
11, a kind of system that utilizes the described method of claim 1 the IPv6 main frame among the Intranet to be inserted global IPv 6 network, the IPv4 http proxy server that is used for passing through Intranet is set up IPv6 main frame among the Intranet and the virtual channel between global IPv 6 network, it is characterized in that, comprising:
One Intranet tunnel agent is arranged between the IPv6 main frame and IPv4 http proxy server among the Intranet;
One public network tunnel agent is arranged between IPv4 http proxy server and the global IPv 6 network, can be connected to simultaneously on IPv4 Internet and the IPv6 Internet;
Wherein, described Intranet tunnel agent is used for the IPv6 packet encapsulation is become the HTTP request message, and by http proxy server described HTTP request message is sent on the described public network tunnel agent; Described public network tunnel agent is used for receiving described HTTP request message from the interface of itself and IPv4 network, deblocking takes on IPv6 grouping from described HTTP request message, and the interface of IPv6 grouping by described public network tunnel agent and IPv6 network is sent on the main frame in the global IPv 6 network.
12, system according to claim 11 is characterized in that, described Intranet tunnel agent is an IPv4/IPv6 dual stack main frame, and it has only privately owned IPv4 address; And/or described outer net tunnel agent is a 6to4 relay router, and it has global I Pv4 address, can directly connect with any other main frame among the IPv4 Internet, and it also has been connected in the described global IPv 6 network simultaneously; And/or the IPv6 main frame among the described Intranet has the 6to4 address prefix of standard.
13, according to the described system of arbitrary claim in claim 11 or 12, it is characterized in that, described Intranet tunnel agent and/or described public network tunnel agent are provided with the grouping screening washer at it above the data link layer, be used for when grouping when satisfying certain condition with its intercepting and capturing and deal with.
14, system according to claim 13, it is characterized in that, described Intranet tunnel agent and/or described public network tunnel agent further comprise packet handler, are used to the grouping screening washer deal with data that is provided with on described Intranet tunnel agent and/or the described public network tunnel agent.
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| CNA2006100113490A CN101026547A (en) | 2006-02-22 | 2006-02-22 | Method and system for accessing Intranct IPv6 host into global IPv6 network |
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| CNA2006100113490A CN101026547A (en) | 2006-02-22 | 2006-02-22 | Method and system for accessing Intranct IPv6 host into global IPv6 network |
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