公开(公告)号：WO2007050623A2

公开(公告)日：2007-05-03

申请号：PCT/US2006041511

申请日：2006-10-23

Applicant: CISCO TECH INC ,  PATEL ALPESH ,  LEUNG KENT K ,  SALOWEY JOSEPH A ,  SHAO YU-CHENG

Inventor： PATEL ALPESH ,  LEUNG KENT K ,  SALOWEY JOSEPH A ,  SHAO YU-CHENG

IPC: H04W8/04 ,  H04W12/06 ,  H04W80/04

CPC classification number: H04L63/162 ,  H04L9/083 ,  H04L9/0844 ,  H04L63/0853 ,  H04L63/0892 ,  H04L2209/80 ,  H04L2463/061 ,  H04W8/04 ,  H04W12/06 ,  H04W80/04

Abstract: Methods and apparatus for dynamically generating a set of Mobile IP keys are disclosed. The set of Mobile IP keys is dynamically generated using an existing HLR/AuC authentication infrastructure. This is accomplished, in part, by obtaining an International Mobile Subscriber Identity (IMSI) that uniquely identifies a particular Mobile Node. Once a set of Mobile IP keys is generated from authentication information associated with the IMSI, the Mobile Node may register with its Home Agent using the set of Mobile IP keys.

Abstract translation: 公开了用于动态生成一组移动IP密钥的方法和设备。 该组移动IP密钥是使用现有的HLR / AuC认证基础结构动态生成的。 这部分通过获得唯一标识特定移动节点的国际移动订户身份（IMSI）来完成。 一旦从与IMSI相关联的认证信息生成了一组移动IP密钥，则移动节点可以使用该组移动IP密钥向其归属代理进行注册。

公开(公告)号：WO2007008849A3

公开(公告)日：2007-04-12

申请号：PCT/US2006026810

申请日：2006-07-06

Applicant: CISCO TECH INC ,  DOMMETY GOPAL ,  PATEL ALPESH

Inventor： DOMMETY GOPAL ,  PATEL ALPESH

IPC: H04M7/00

CPC classification number: H04W28/06 ,  H04L61/2514 ,  H04L61/256 ,  H04L61/2592 ,  H04L63/0272 ,  H04W12/02 ,  H04W76/04 ,  H04W80/04 ,  H04W80/06

Abstract: Methods and apparatus for optimizing Mobile VPN communications are disclosed. When a data packet is transmitted between a Mobile Node that is a member of a VPN and a Correspondent Node, the data packet is transmitted between the Mobile Node and a Home Agent via a Mobile IP tunnel without transmitting the data packet via a VPN tunnel. However, the data packet is transmitted between the Home Agent and a VPN headend via a VPN tunnel.

Abstract translation: 公开了用于优化移动VPN通信的方法和装置。 当在作为VPN成员的移动节点和对应节点之间传输数据分组时，数据分组在经由移动IP隧道在移动节点和本地代理之间传输，而不经由VPN隧道传输数据分组。 但是，数据包通过VPN隧道在本地代理和VPN头端之间传输。

公开(公告)号：CA2572978C

公开(公告)日：2013-01-22

申请号：CA2572978

申请日：2005-07-22

Applicant: CISCO TECH INC

Inventor： PATEL ALPESH ,  LEUNG KENT ,  DOMMETY GOPAL

IPC: H04L29/06

Abstract: Methods and apparatus for performing proxy registration on behalf of a node with a Home Agent supporting Mobile IP are disclosed. A first registration request is composed on behalf of the node and transmitted to the Home Agent via a first Local Mobility Anchor, wherein the first Local Mobility Anchor is a regional controller via which registration is performed when the node moves within a region associated with the first Local Mobility Anchor. When the node moves within a region or between regions, the node is re-registered. Specifically, a second registration request is composed and transmitted to the first Local Mobility Anchor when the node moves within the region associated with the first Local Mobility Anchor. When the node moves into a second region associated with a second Local Mobility Anchor and outside the first region associated with the first Local Mobility Anchor, a second registration request is composed and transmitted to the Home Agent via the second Local Mobility Anchor, wherein the second Local Mobility Anchor is a regional controller via which registration is performed when the node moves within a region associated with second first Local Mobility Anchor.

公开(公告)号：CA2502063C

公开(公告)日：2011-12-20

申请号：CA2502063

申请日：2003-10-16

Applicant: CISCO TECH INC

Inventor： PATEL ALPESH ,  LEUNG KENT K ,  CHANDRA MADHAVI W

IPC: H04L29/06 ,  H04L12/56 ,  H04L29/12

Abstract: The present invention provides methods and apparatus for managing an IP address assigned to a Mobile Node. In one embodiment, the Mobile Node appends an extension to the registration request that is sent to its Home Agent, which indicates that the Mobile Node requests use of the IP address previously assigned to the Mobile Node for an additional period of time. When the Home Agent receives the registration request, it indicates whether a lease on the IP address previously assigned to the Mobile Node has been granted by the Home Agent for an additional period of time. In another embodiment, the Home Agent sends a first control message to determine whether the Mobile Node continues to use the IP address. The Home Agent then determines whether a second control message has been received in order to ascertain whether the Mobile Node continues to use the IP address previously assigned to the Mobile Node. The present invention is preferably performed when a Mobile Node returns to its home network, thereby enabling the Mobile Node to retain the IP address assigned to it.

公开(公告)号：DE60323534D1

公开(公告)日：2008-10-23

申请号：DE60323534

申请日：2003-11-17

Applicant: CISCO TECH INC

Inventor： PATEL ALPESH ,  LEUNG KENT K ,  RAAB STEFAN ,  DOMMETY GOPAL

IPC: H04L29/06

Abstract: Methods and apparatus for providing a centralized source of session keys to be shared by a Home Agent and a Mobile Node are disclosed. In accordance with one aspect of the invention, a Mobile Node registers with a Home Agent supporting Mobile IP by sending a registration request to the Home Agent. The Home Agent sends a request message (e.g., access-request message) to a AAA server, the request message identifying the Mobile Node. The AAA server then derives key information from a key or password associated with the Mobile Node. The AAA server then sends a reply message (e.g., access-reply message) to the Home Agent, the reply message including the key information associated with the Mobile Node, thereby enabling the Home Agent to derive a shared key to be shared between the Mobile Node and the Home Agent from the key information. The Home Agent derives a key from the key information, the key being a shared key between the Mobile Node and the Home Agent. A registration reply is then sent to the Mobile Node. When the Mobile Node receives a registration reply from the Home Agent, the registration reply indicates that the Mobile Node is to derive a key to be shared between the Mobile Node and the Home Agent. The Mobile Node then derives a key to be shared between the Mobile Node and the Home Agent from key information stored at the Mobile Node. The Mobile Node may initiate "re-keying" by sending a subsequent registration request to the Home Agent.

公开(公告)号：WO2007130937A3

公开(公告)日：2008-11-20

申请号：PCT/US2007067870

申请日：2007-05-01

Applicant: CISCO TECH INC ,  PATEL ALPESH ,  ROY ABHAY ,  KORIPALLI RAJEEV ,  ZHANG KUI ,  JOSHI PRAVEEN ,  APPALA SYAM SUNDAR

Inventor： PATEL ALPESH ,  ROY ABHAY ,  KORIPALLI RAJEEV ,  ZHANG KUI ,  JOSHI PRAVEEN ,  APPALA SYAM SUNDAR

IPC: G06F15/173 ,  H04J3/16 ,  H04J3/22 ,  H04L12/28

CPC classification number: H04L45/02 ,  H04L45/308

Abstract: A data processing apparatus comprises instructions to perform sending and receiving one or more messages conforming to a network routing protocol, such as Open Shortest Path First (OSPF); obtaining one or more information elements that specify one or more capabilities of the apparatus; creating a particular routing protocol message comprising an opaque advertisement that includes the one or more information elements; and sending the particular message on one of the network interfaces. For example, a router or switch that implements a network routing protocol can use OSPF Opaque Link State Advertisements to advertise and discover services and capabilities of other routers or switches.

Abstract translation: 数据处理装置包括执行发送和接收符合诸如开放最短路径优先（OSPF）的网络路由协议的一个或多个消息的指令; 获得指定所述装置的一个或多个能力的一个或多个信息元素; 创建包括包含所述一个或多个信息元素的不透明广告的特定路由协议消息; 并在一个网络接口上发送特定消息。 例如，实现网络路由协议的路由器或交换机可以使用OSPF不透明链路状态广告来通告和发现其他路由器或交换机的服务和功能。

公开(公告)号：AT491279T

公开(公告)日：2010-12-15

申请号：AT06817346

申请日：2006-10-23

Applicant: CISCO TECH INC

Inventor： PATEL ALPESH ,  LEUNG KENT ,  SALOWEY JOSEPH ,  SHAO YU-CHENG

IPC: H04L9/00 ,  H04L9/08 ,  H04W8/04 ,  H04W12/06 ,  H04W80/04

Abstract: Methods and apparatus for dynamically generating a set of Mobile IP keys are disclosed. The set of Mobile IP keys is dynamically generated using an existing HLR/AuC authentication infrastructure. This is accomplished, in part, by obtaining an International Mobile Subscriber Identity (IMSI) that uniquely identifies a particular Mobile Node. Once a set of Mobile IP keys is generated from authentication information associated with the IMSI, the Mobile Node may register with its Home Agent using the set of Mobile IP keys.

公开(公告)号：AT473577T

公开(公告)日：2010-07-15

申请号：AT03724437

申请日：2003-05-01

Applicant: CISCO TECH INC

Inventor： LEUNG KENT ,  PATEL ALPESH ,  RAAB STEFAN

IPC: H04L29/06 ,  H04L29/08 ,  H04W8/12 ,  H04W80/04

Abstract: In accordance with one aspect of the invention, methods and apparatus for distributing a Mobile IP registration request to one of a plurality of Home Agents are disclosed. A registration request is received from a Foreign Agent to which the Mobile Node has roamed. One of the plurality of Home Agents is selected. The registration request is then forwarded to the selected one of the plurality of Home Agents. The source IP address of the registration request is an IP address of the Foreign Agent to which the Mobile Node has roamed, thereby enabling the selected one of the plurality of Home Agents to send a Mobile IP registration reply directly to the Foreign Agent without interception by the network device.

公开(公告)号：DE60329844D1

公开(公告)日：2009-12-10

申请号：DE60329844

申请日：2003-06-25

Applicant: CISCO TECH INC

Inventor： LEUNG KENT K ,  KULKARNI MILIND M ,  PATEL ALPESH

IPC: H04L29/06 ,  H04L29/08 ,  H04L29/12

Abstract: Methods and apparatuses for obtaining home agent assignment. The invention uses a DNS query to signal a request for dynamic home agent assignment. The DNS query will cause a content routing device to be notified that home agent assignment is being requested. The content routing device can then use predetermined metrics to select a home agent. A DNS response will then be sent back to the device that initiated the DNS query containing the IP address of the selected home agent.

公开(公告)号：CA2490821C

公开(公告)日：2010-08-10

申请号：CA2490821

申请日：2003-06-25

Applicant: CISCO TECH INC

Inventor： LEUNG KENT K ,  KULKARNI MILIND M ,  PATEL ALPESH

IPC: H04L29/06 ,  H04L29/08 ,  H04L29/12

Abstract: Methods and apparatuses for obtaining home agent assignment. The invention uses a DNS query to signal a request for dynamic home agent assignment. The DNS query will cause a content routing device to be notified that home agent assignment is being requested. The content routing device can then use predetermined metrics to select a home agent. A DNS response will then be sent back to the device that initiated the DNS query containing the IP address of the selected home agent.