CN100366036C - Route returning process method in mobile IPV6 - Google Patents
Route returning process method in mobile IPV6 Download PDFInfo
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- CN100366036C CN100366036C CNB2004100412807A CN200410041280A CN100366036C CN 100366036 C CN100366036 C CN 100366036C CN B2004100412807 A CNB2004100412807 A CN B2004100412807A CN 200410041280 A CN200410041280 A CN 200410041280A CN 100366036 C CN100366036 C CN 100366036C
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- 238000012360 testing method Methods 0.000 claims abstract description 24
- 235000014510 cooky Nutrition 0.000 claims abstract description 21
- 238000013101 initial test Methods 0.000 claims description 2
- 230000006854 communication Effects 0.000 abstract description 2
- 238000012790 confirmation Methods 0.000 abstract 1
- 238000007689 inspection Methods 0.000 description 3
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Abstract
The present invention relates to a method for a route returning process in mobile IPv6. The method comprises the steps that (1) a TIP message is sent to a local agent by a mobile node; (2) the local agent takes an initializing test Cookie out from the message after receiving the TIP message and the initializing test Cookie is contained in a Tint message to send to a relative node; (3) the relative node sends a Tack test confirmation message to the mobile node through a direct route after receiving the Tint message so that the safety handshaking process of the mobile node and the relative node is realized. The process of the present invention uses a new message type and a new handshaking method and has the advantages of communication process simplification between the mobile node and the relative node, high speed for safety certification, high mobile IPv6 efficiency and high performance under the premise of the guarantee of safety and reliability.
Description
Technical field
The present invention relates to mobile IPv 6 protocol, particularly the method for route return course wherein.
Background technology
Since 20th century, proposed ICP/IP protocol the seventies, it was used more and more widely.It is the 4th edition that present INTERNET goes up the TCP/IP version that uses, and is also referred to as IPv4.But along with networks development, especially along with mobile network's appearance and extensive use, IPv4 has exposed increasing problem.IETF has proposed the IPv6 agreement thus, and Internet Protocol next generation IPv6 is a next generation Internet with the new standard that adopts, and IPv6 has provided detailed explanation, is included as the new address allocation plan that the quick growth of supporting the internet is adopted; Support to multicast and arbitrfary point broadcasting; Support to real-time multimedia and others application; About encrypting and the enhancing of the fail safe of aspect such as checking.In order to guarantee that the internet can maintain sustained and rapid growth, the IP agreement must be supported new address assignment and Route Selection technology.D.Johnson, C.Perkins, J.Arkko, " Mobility Support in IPv6 ", draft-ietf-mobileip-ipv6-24.txt, June, 2003 and S.Deering, R.Hinden, " Internet Protocol; Version 6 (IPv6) Specification ", RFC2460, Dec1998.
And, for the mobile network, provided mobility solution---mobile IP v 6.In order to guarantee to send to the information security of interdependent node from mobile node, defined a safety handshake in the mobile IP v 6, be called route return course (Return Routability Procedure).The detailed description of current route return course is by draft-ietf-mobile ip-ipv6-24 defined.Referring to Sangheon Pack, Yanghee Choi, " PerformanceAnalysis of Fast Handover in Mobile IPv6 Networks ", 2003.
The route return course of existing mobile IPv 6 protocol uses four message altogether, and for mobile node, it only needs to handle four message, and the requirement height of the disposal ability of mobile node and connection requirement is also high to the requirement of mobile device.Otherwise may be influential to network efficiency.
Summary of the invention
The objective of the invention is: the method that a kind of mobile IP v 6 route return course of simplification is provided.The present invention uses new message and mode to realize safety handshake between mobile node and the interdependent node.Use the method for local agent in this simplification process as route return course agency.The present invention also aims to, provide the TIP that constructs and use in this simplification process, Tint, the method for Tack message or signal.
The present invention also aims to: at the characteristics of business environment, the route return course is simplified, made and to finish handshake procedure faster between mobile node and the interdependent node.Especially for mobile node, can reduce its processor and network overhead, reduce the power consumption of mobile device.Under the prerequisite that guarantees the fail safe reliability, improve efficient, reduced the realization cost.
For realizing described purpose, the present invention proposes the route return course of a simplification, the specific descriptions of this process are as follows: shown in Fig. 1 flow process
1. mobile node (Mobile node) sends TIP (Test Init Proxy test initialization proxy message)
Message is given local agent (Home agent).
2. local agent is after receiving TIP message, takes out Init Cookie (initial testing Cookie) and be included in Tint (the Test Init test initialization message) message to send to interdependent node (Correspondent node) from message.
3. interdependent node sends Tack (Test Acknowledgment test confirm message) message and gives mobile node (Mobile node) through direct route after receiving Tint message.
TIP wherein, Tint, the form of Tack message following (shown in Fig. 2-4):
(1.TIP Test Init Proxy test initialization proxy message) message format:
Keep (Peserved): 16, reserved field;
Initialization Cookie (Init Cookie): 64, random value, concrete producing method is with describing among the draft-ietf-mobileip-ipv6-24;
Interdependent node IP address (Correspondent Node Address): 128, the IP address of interdependent node;
Mobile option (Mobility Options): variable length field is identical with definition among the draft-ietf-mobileip-ipv6-24.
(2.Tint Test Init test initialization signal) message format:
Keep (Peserved): 16, reserved field;
Initialization Cookie (Init Cookie): 64, random value, producing method is with describing among the draft-ietf-mobileip-ipv6-24;
Mobile node IP address (Mobile Node Address): 128, the IP address of mobile node;
Mobile option (Mobility Options): variable length field is identical with definition among the draft-ietf-mobileip-ipv6-24.
(3.Tack Test Acknowledgment test confirm message) message format:
Nonce index (Nonce Index): 16, definition is with the Home Nonce Index among the draft-ietf-mobileip-ipv6-24;
Initialization Cookie (Init Cookie): 64, random value, producing method is with describing among the draft-ietf-mobileip-ipv6-24;
Keygen Token:32 position, definition is with the Home KeygenToken of draft-ietf-mobileip-ipv6-24;
Mobile option (Mobility Options): variable length field is identical with definition among the draft-ietf-mobileip-ipv6-24.
The advantage of invention is: the core of simplification process of the present invention is to use the method for local agent as route return course agency.And the TIP to constructing and use in the simplification process, Tint, the form of Tack message is simplified.
The present invention can be used for various computer systems or embedded system.
Method for simplifying proposed by the invention is compared being compared as follows on efficient, fail safe, reliability and performance with conventional method:
(1) on efficient, use three message in the whole process after the simplification altogether, then need four in the former process.Though only reduced by a message, for mobile node, it only needs to handle two message, and needs to handle four in the former process, has reduced half.So improved network efficiency greatly, and meaned that mobile node can reduce half disposal ability and connection requirement,, just can save more processor time and battery service time for mobile device.
(2) in fail safe, we use the agency of local agent as the route return course, because use IPsec to guarantee data security between local agent and the mobile node, make other nodes to bind deception by forging TIP message.
(3) on reliability, because relying on local agent, the process after simplifying acts on behalf of the route return course, as if reduced the reliability of system, in case, will cause the route return course to carry out because local agent is unavailable.But we can see, equally need to rely on local agent and transmit HoTI/HoT message in former process.Process after the simplification does not reduce the reliability of system.
(4) on performance, as if because need local agent to come the route return course of proxy mobile node, local agent will become performance bottleneck.When acting on behalf of the route return course, local agent also is no longer necessary for HoTI and HoT message is set up the tunnel but in fact.So the process after the simplification of integrating not only can not increase the burden of local agent, also slightly reduce on the contrary, therefore can not produce negative influence to performance.
From top analysis we as can be seen, route return course after the simplification is under the prerequisite that has guaranteed fail safe and reliability, simplify the communication process between mobile node and interdependent node, accelerated the authentication between them, improved the efficient and the performance of mobile IP v 6.The method for simplifying that is particularly useful for mobile IP v 6 route return course in the practical business environment.
Description of drawings
Fig. 1 is the schematic flow sheet of the inventive method
Fig. 2 adopts the structural representation of TIP message format for the present invention;
Fig. 3 adopts the structural representation of Tint message format for the present invention;
Fig. 4 adopts the structural representation of Tack message format for the present invention;
Fig. 5 is the flow chart of specific implementation process of the present invention.
Embodiment
The specific implementation process following (Fig. 5) of the route return course of simplifying
1, mobile node structure TIP message sends to local agent, comprises one 64 InitCookie in the message;
2, mobile node is in the relevant information of this TIP message of local record:
The IP address that message sends to
The local address of mobile node
The time that message sends
Employed cookie in the message
3, after local agent receives TIP message, therefrom take out Init Cookie and construct Tint message;
4, local agent sends Tint message to interdependent node (the IP address of interdependent node also can obtain) from TIP message;
5, after interdependent node receives Tint message, according to describing structure Keygen Token among the draft-ietf-mobileip-ipv6-24;
6, use the Init Cookie in Keygen Token and the received Tint message to construct Tack message;
7, interdependent node sends Tack message to mobile node;
8, after mobile node receives the Tack message of relevant ground connection transmission, do following inspection:
Whether the source address of message belongs to the interdependent node that carries out the route return course;
Check in the list of bindings item and whether do not contain the Keygen Token that receives to some extent in the message;
Init Cookie that comprises in the message and local preserve whether identical;
9, the Tack message of the inspection in all satisfied the 8th steps all can directly be abandoned.If satisfy this inspection, mobile node is just noted the value of Keygen Token in the list of bindings item, and expression has received Tack message, and whole route return course finishes.
Claims (1)
1. the method for mobile IPv 6 protocol route return course is characterized in that (1) sends TIP test initialization proxy message to local agent by mobile node; (2) local agent is after receiving TIP message, takes out initial testing Cookie and be included in the Tint test initialization message to send to interdependent node from message; (3) interdependent node sends the direct route of Tack test confirm message warp to mobile node after receiving Tint message, thereby realizes the safety handshake between mobile node and the interdependent node;
TIP wherein, Tint, the form of Tack message is as follows;
1) TIP message is the form of Test Init Proxy test initialization proxy message:
● keep (Reserved): 16, reserved field;
● initialization Cookie (Init Cookie): 64, random value, concrete producing method is with describing among the draft-ietf-mobileip-ipv6-24;
● interdependent node IP address (Correspondent Node Address): 128, the IP address of interdependent node;
● mobile option (Mobility Options): variable length field is identical with definition among the draft-ietf-mobileip-ipv6-24;
2) form of Tint message Test Init test initialization signal message:
● keep (Reserved): 16, reserved field;
● initialization Cookie (Init Cookie): 64, random value, producing method is with describing among the draft-ietf-mobileip-ipv6-24;
● mobile node IP address (Mobile Node Address): 128, the IP address of mobile node;
● mobile option (Mobility Options): variable length field is identical with definition among the draft-ietf-mobileip-ipv6-24;
3) Tack message is the form of Test Acknowledgment test confirm message:
● Nonce index (Nonce Index): 16, definition is with the Home Nonce Index among the draft-ietf-mobileip-ipv6-24;
● initialization Cookie (Init Cookie): 64, random value, producing method is with describing among the draft-ietf-mobileip-ipv6-24;
● Keygen Token:32 position, definition is with the HomeKeygen Token of draft-ietf-mobileip-ipv6-24;
● mobile option (Mobility Options): variable length field is identical with definition among the draft-ietf-mobileip-ipv6-24.
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| CNB2004100412807A CN100366036C (en) | 2004-06-15 | 2004-06-15 | Route returning process method in mobile IPV6 |
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| CN100366036C true CN100366036C (en) | 2008-01-30 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR100765798B1 (en) * | 2005-12-29 | 2007-10-15 | 삼성전자주식회사 | Method for route optimization with dual mobile IPv4 node in IPv6-only network |
| CN101005698B (en) * | 2006-01-20 | 2010-07-07 | 华为技术有限公司 | Method and system for optimizing route in moving IPv6 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400786A (en) * | 2001-07-27 | 2003-03-05 | 三星电子株式会社 | Method and equipment to constitute movable local domain and movable local deputy |
| US20030091030A1 (en) * | 2001-11-09 | 2003-05-15 | Docomo Communications Laboratories Usa, Inc. | Secure network access method |
| JP2003218954A (en) * | 2001-11-09 | 2003-07-31 | Docomo Communications Laboratories Usa Inc | Secure network access method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400786A (en) * | 2001-07-27 | 2003-03-05 | 三星电子株式会社 | Method and equipment to constitute movable local domain and movable local deputy |
| US20030091030A1 (en) * | 2001-11-09 | 2003-05-15 | Docomo Communications Laboratories Usa, Inc. | Secure network access method |
| JP2003218954A (en) * | 2001-11-09 | 2003-07-31 | Docomo Communications Laboratories Usa Inc | Secure network access method |
Non-Patent Citations (2)
| Title |
|---|
| IPv6 的移动性支持及实现. 何涛，杨寿保.小型微型计算机系统，第24卷第3期. 2003 * |
| Mobility Support in IPv6. D. Johnson , C. Perkins, J. Arkko.Request for Comments,No.3775. 2003 * |
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