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51. 发明授权

US07227863B1 Methods and apparatus for implementing home agent redundancy 有权
标题翻译：实施归属代理冗余的方法和装置
公开(公告)号：US07227863B1
公开(公告)日：2007-06-05
申请号：US10008494
申请日：2001-11-09
申请人： Kent K. Leung , Madhavi W. Chandra
发明人： Kent K. Leung , Madhavi W. Chandra
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04W8/12 , H04L69/40 , H04W8/30 , H04W80/04
摘要： Methods and apparatus for maintaining Mobile IP operation in a Home Agent are disclosed. In a Home Agent, a Mobile Node is registered and a registration entry is created in a mobility binding table for the Mobile Node. A multicast message is then sent to a virtual router group to which the Home Agent belongs and with which the Home Agent shares a virtual IP address. The multicast message notifies the virtual router group of the registration. A similar process may be performed when a Mobile Node is de-registered. When an active or non-active Home Agent is initialized, it sends a multicast mobility binding table request to the redundancy group indicating that bindings are requested. The Home Agent may then receive bindings in response to the request and update its mobility binding table with the received bindings.
摘要翻译：公开了在本地代理中维护移动IP操作的方法和装置。在归属代理中，移动节点被注册，并且在用于移动节点的移动性绑定表中创建注册条目。然后，多播消息被发送到归属代理所属的虚拟路由器组，并且归属代理共享虚拟IP地址。多播消息通知虚拟路由器组注册。当移动节点被注销时，可以执行类似的过程。当主动或非活动归属代理被初始化时，它向冗余组发送指示绑定被请求的多播移动性绑定表请求。然后，归属代理可以响应于该请求而接收绑定，并且利用所接收的绑定来更新其移动性绑定表。

52. 发明授权

US07168090B2 Mobile IP authentication 有权
标题翻译：移动IP认证
公开(公告)号：US07168090B2
公开(公告)日：2007-01-23
申请号：US10866654
申请日：2004-06-10
申请人： Kent K. Leung
发明人： Kent K. Leung
IPC分类号： H04L29/00
CPC分类号： H04L63/08
摘要： Methods and apparatus for authenticating a mobile node are disclosed. A server is configured to provide a plurality of security associations associated with a plurality of mobile nodes. A packet identifying a mobile node may then be sent to the server from a network device such as a Home Agent. A security association for the mobile node identified in the packet may then be obtained from the server. The security association may be sent to the network device to permit authentication of the mobile node. Alternatively, authentication of the mobile node may be performed at the server by applying the security association.
摘要翻译：公开了用于认证移动节点的方法和装置。服务器被配置为提供与多个移动节点相关联的多个安全关联。然后可以从诸如归属代理的网络设备将标识移动节点的分组发送到服务器。然后可以从服务器获得在分组中标识的移动节点的安全关联。可以将安全关联发送到网络设备以允许移动节点的认证。或者，可以通过应用安全关联在服务器处执行移动节点的认证。

53. 发明授权

US07152238B1 Enabling mobility for point to point protocol (PPP) users using a node that does not support mobility 有权
标题翻译：启用使用不支持移动性的节点的点对点协议（PPP）用户的移动性
公开(公告)号：US07152238B1
公开(公告)日：2006-12-19
申请号：US09751944
申请日：2000-12-29
申请人： Kent K. Leung , Gopal K. Dommety
发明人： Kent K. Leung , Gopal K. Dommety
IPC分类号： H04L9/00
CPC分类号： H04L63/0281 , H04L63/08 , H04L63/0892 , H04W12/06 , H04W60/00 , H04W80/04 , H04W80/045 , H04W88/182
摘要： Methods and apparatus for sending a registration request packet on behalf of a node that supports PPP but does not support Mobile IP is implemented in a Foreign Agent. The method comprises accepting a call from the node and receiving authentication information associated with a PPP authentication protocol from the node, the authentication information enabling a PPP node to be authenticated. From this authentication information, a PPP node profile is obtained. The PPP node profile includes registration information associated with the node that enables proxy registration to be performed by the Foreign Agent on behalf of the node, where the registration information associated with the node identifies a Home Agent associated with the node. The registration information may also include other information that may be pertinent to the composition of a registration request packet. A registration request packet including the registration information associated with the node is then composed and sent to the Home Agent on behalf of the node. The registration request packet that is sent by the Foreign Agent also may include a registration indicator indicating whether registration being performed by the Foreign Agent on behalf of the node is a re-registration by the Foreign Agent or an initial registration by the Foreign Agent. More particularly, in accordance with one embodiment, the registration request packet includes a sequence number indicating an order within a sequence of one or more registrations performed by one or more Foreign Agents on behalf of the node. From the sequence number, a Home Agent receiving the registration request packet may determine whether the Foreign Agent is performing a re-registration or an initial registration on behalf of the node.
摘要翻译：在外部代理中实现代表支持PPP但不支持移动IP的节点发送注册请求分组的方法和装置。该方法包括从节点接受呼叫并从该节点接收与PPP认证协议相关联的认证信息，该认证信息使PPP节点得到认证。从该认证信息获得PPP节点简档。 PPP节点简档包括与节点相关联的注册信息，该注册信息能够由外部代理代表节点执行代理注册，其中与该节点相关联的注册信息标识与该节点相关联的归属代理。注册信息还可以包括可能与注册请求分组的组合相关的其他信息。然后，包括与节点相关联的注册信息的注册请求分组被组合并代表节点发送到归属代理。由外地代理发送的登记请求包也可以包括一个登记指示符，指示外国代理人代表该节点进行的登记是否由外地代理人重新注册或外国代理人的初始登记。更具体地，根据一个实施例，注册请求分组包括指示由一个或多个外部代理代表节点执行的一个或多个注册的序列内的顺序的序列号。从序列号，接收注册请求分组的归属代理可以确定外部代理是否正在代表节点执行重新注册或初始注册。

54. 发明授权

US06947451B1 Network layer support to enhance the transport layer performance in mobile and wireless environments 有权
标题翻译：网络层支持，以增强移动和无线环境中的传输层性能
公开(公告)号：US06947451B1
公开(公告)日：2005-09-20
申请号：US10302159
申请日：2002-11-20
申请人： Gopal K. Dommety , Kent K. Leung , Roy Laurens
发明人： Gopal K. Dommety , Kent K. Leung , Roy Laurens
IPC分类号： H04L12/56 , H04L29/06 , H04L12/28
CPC分类号： H04W36/18 , H04W8/06 , H04W40/34 , H04W80/04 , Y10S370/913
摘要： In a router or packet processing node supporting Mobile IP, a method for causing packets to be retransmitted from a sender to a mobile node is disclosed. A plurality of packets having associated update information are received. The packets are intended for the mobile node. The update information associated with at least one of the received packets is stored. When the mobile node is disconnected from the sender and reconnects to the sender, without waiting for a timeout the sender is directed to retransmit a last portion of packets to the mobile node based on the stored update information. Apparatus and computer readable medium embodiments are also disclosed.
摘要翻译：在支持移动IP的路由器或分组处理节点中，公开了一种使分组从发送方重传到移动节点的方法。接收到具有相关联的更新信息的多个分组。分组旨在用于移动节点。存储与所接收的分组中的至少一个相关联的更新信息。当移动节点与发送者断开连接并且重新连接到发送者时，在不等待超时的情况下，发送者被指示基于所存储的更新信息向移动节点重发最后一部分的分组。还公开了装置和计算机可读介质实施例。

55. 发明授权

US06621810B1 Mobile IP intra-agent mobility 有权
公开(公告)号：US06621810B1
公开(公告)日：2003-09-16
申请号：US09322118
申请日：1999-05-27
申请人： Kent K. Leung
发明人： Kent K. Leung
IPC分类号： H04Q724
CPC分类号： H04W60/00 , H04W80/04 , H04W88/14
摘要： Methods and apparatus for enabling intra-agent mobility by a mobile node are disclosed, thereby permitting a mobile node to register with a Home Agent via a Foreign Agent where the Home Agent and the Foreign Agent are provided in the same router. A method of registering a mobile node visiting a Foreign Agent with a Home Agent includes receiving a registration request packet specifying a Home Address and a care-of address. It is then determined whether the Home Address specified in the registration request packet is equivalent to a Home Agent address associated with the router. In addition, it may be determined whether the care-of address specified in the registration request packet is equivalent to a Foreign Agent address advertised by the router. Alternatively, it may be determined whether the D bit specified in the registration request packet is set and the care-of address specified in the registration request packet is a collocated care-of address. The mobile node may then be registered with the Home Agent through the use of a physical interface on the router rather than creating or specifying a tunnel interface to reach the mobile node or the Home Agent.

56. 发明授权

US06510144B1 Network layer support to enhance the transport layer performance in mobile and wireless environments 有权
标题翻译：网络层支持，以增强移动和无线环境中的传输层性能
公开(公告)号：US06510144B1
公开(公告)日：2003-01-21
申请号：US09457041
申请日：1999-12-07
申请人： Gopal K. Dommety , Kent K. Leung , Roy Laurens
发明人： Gopal K. Dommety , Kent K. Leung , Roy Laurens
IPC分类号： H04J316
CPC分类号： H04W36/18 , H04W8/06 , H04W40/34 , H04W80/04 , Y10S370/913
摘要： In a router or packet processing node supporting Mobile IP, a method for causing packets to be retransmitted from a sender to a mobile node is disclosed. A plurality of packets having associated update information are received. The packets are intended for the mobile node. The update information associated with at least one of the received packets is stored. When the mobile node is disconnected from the sender and reconnects to the sender, without waiting for a timeout the sender is directed to retransmit a last portion of packets to the mobile node based on the stored update information. Apparatus and computer readable medium embodiments are also disclosed.
摘要翻译：在支持移动IP的路由器或分组处理节点中，公开了一种使分组从发送者重传到移动节点的方法。接收到具有相关联的更新信息的多个分组。分组旨在用于移动节点。存储与所接收的分组中的至少一个相关联的更新信息。当移动节点与发送者断开连接并且重新连接到发送者时，在不等待超时的情况下，发送者被指示基于所存储的更新信息向移动节点重发最后一部分的分组。还公开了装置和计算机可读介质实施例。

57. 发明授权

US06501746B1 Mobile IP dynamic home address resolution 有权
标题翻译：移动IP动态家庭地址解析
公开(公告)号：US06501746B1
公开(公告)日：2002-12-31
申请号：US09227397
申请日：1999-01-08
申请人： Kent K. Leung
发明人： Kent K. Leung
IPC分类号： H04Q724
CPC分类号： H04W60/00 , H04L29/12009 , H04L29/12207 , H04L61/20 , H04W8/06 , H04W8/26 , H04W80/04 , Y10S370/901
摘要： Methods and apparatus for assigning an IP address to a mobile node during registration are disclosed. According to one aspect, a registration request is sent by a mobile node. A mobile node ID associated with the mobile node is obtained. A registration request packet is then composed. The registration request packet stores at least a portion of the mobile node ID in the registration request packet. The registration request packet is sent to a Home Agent associated with the mobile node. According to another aspect, a registration request packet is processed by a Home Agent. The Home Agent receives the registration request packet and ascertains whether the mobile node designated by the registration request packet needs an IP address. An IP address is assigned to the mobile node if it is ascertained that the mobile node needs an IP address. A registration reply specifying the IP address assigned to the mobile node is then composed. According to another aspect, a registration reply packet received by a Foreign Agent is processed. The registration reply packet is received from a Home Agent. The registration reply packet specifies a portion of a mobile node ID and an IP address associated with a mobile node. The portion of the mobile node ID and the IP address are obtained from the registration reply packet. A visitor table is updated with a mapping of the mobile node ID to the IP address. The registration reply packet is sent to the mobile node.
摘要翻译：公开了在注册期间向移动节点分配IP地址的方法和装置。根据一个方面，移动节点发送注册请求。获得与移动节点相关联的移动节点ID。然后组成注册请求包。注册请求分组将登记请求分组中的移动节点ID的至少一部分存储。注册请求分组被发送到与移动节点相关联的归属代理。根据另一方面，注册请求分组由归属代理处理。归属代理接收注册请求分组，确定由注册请求分组指定的移动节点是否需要IP地址。如果确定移动节点需要IP地址，则将IP地址分配给移动节点。然后组成指定分配给移动节点的IP地址的注册答复。根据另一方面，处理由外部代理接收到的注册应答分组。从归属代理接收注册答复包。注册答复分组指定移动节点ID的一部分和与移动节点相关联的IP地址。移动节点ID和IP地址的部分从注册应答包获得。用移动节点ID与IP地址的映射更新访客表。注册应答包被发送到移动节点。

58. 发明授权

US06487605B1 Mobile IP mobility agent standby protocol 有权
标题翻译：移动IP移动代理备用协议
公开(公告)号：US06487605B1
公开(公告)日：2002-11-26
申请号：US09714466
申请日：2000-11-14
申请人： Kent K. Leung
发明人： Kent K. Leung
IPC分类号： G06F1516
CPC分类号： H04W8/12 , H04L29/1233 , H04L61/25 , H04L69/40 , H04W8/26 , H04W80/04 , H04W92/24
摘要： Disclosed is a method and apparatus for automatically backing up a Home Agent in Mobile IP. The method employs important components of the widely-used Hot Standby Router Protocol, but extends it to include synchronization of the mobility binding table between an active Home Agent and a standby Home Agent that backs it up. Also disclosed is a more general protocol for extending HSRP and related redundancy protocols to synchronize higher level functions other than mobility binding lists in Mobile IP (e.g., address translation tables in Network Address Translation (NAT), address bindings in Dynamic Host Configuration Protocol (DHCP) servers, dynamic ACL in Reflexive Access List, and TCP and GTP layer context in GPRS support nodes: SGSN & GGSN). Still other protocols that could benefit from HSRP include Lock and Key, Context-Based Access List, IP Security (IPSec), and H.323 gatekeeper.
摘要翻译：公开了一种用于在移动IP中自动备份归属代理的方法和装置。该方法采用广泛使用的热备份路由器协议的重要组件，但扩展它包括活动归属代理和备份归属代理之间的移动绑定表的同步。还公开了一种用于扩展HSRP和相关冗余协议以更新移动IP中移动性绑定列表以外的更高级别功能（例如，网络地址转换（NAT）中的地址转换表），动态主机配置协议（DHCP）中的地址绑定）服务器，反射访问列表中的动态ACL，GPRS支持节点中的TCP和GTP层上下文：SGSN＆GGSN）。可以受益于HSRP的其他协议包括锁和密钥，基于上下文的访问列表，IP安全（IPSec）和H.323网守。

59. 发明授权

US08923260B2 Mobility in multi-device multi-homed deployments 有权
标题翻译：多设备多宿主部署中的移动性
公开(公告)号：US08923260B2
公开(公告)日：2014-12-30
申请号：US13312157
申请日：2011-12-06
申请人： Srinath Gundavelli , Rajesh Pazhyannur , Kent K. Leung
发明人： Srinath Gundavelli , Rajesh Pazhyannur , Kent K. Leung
IPC分类号： H04W92/00
CPC分类号： H04W8/02 , H04W60/005
摘要： Systems and methods for providing identity management and mobility management are disclosed. The management scheme provides mobility in multi-device and multi-homed deployments. A collection of three identities, a device identity, a link layer identity, and a user identity, can be used to provide mobility for a number of devices under different use scenarios. In one embodiment, a method is disclosed for receiving messages from a mobile device at a mobility gateway, the messages including identifiers such as a user identifier, a link layer identifier, and a device identifier where identifiers are stored or retained at the mobility gateway. When a subsequent network attach request is received including one or more identifiers, a reconnection can occur, based on a result of comparing the stored identifiers with the received one or more identifiers.
摘要翻译：公开了用于提供身份管理和移动性管理的系统和方法。管理方案提供多设备和多宿主部署中的移动性。可以使用三个身份的集合，设备身份，链路层身份和用户身份来为不同使用场景下的多个设备提供移动性。在一个实施例中，公开了一种用于在移动性网关处从移动设备接收消息的方法，所述消息包括诸如用户标识符，链路层标识符和在移动性网关处存储或保留标识符的设备标识符的标识符。当接收到包括一个或多个标识符的后续网络附着请求时，可以基于将所存储的标识符与所接收的一个或多个标识符进行比较的结果来进行重新连接。

60. 发明授权

US08850066B2 Dynamically assigning unique addresses to endpoints 有权
标题翻译：动态地为端点分配唯一的地址
公开(公告)号：US08850066B2
公开(公告)日：2014-09-30
申请号：US12128454
申请日：2008-05-28
申请人： Alpesh S. Patel , Kent K. Leung , Pascal Thubert
发明人： Alpesh S. Patel , Kent K. Leung , Pascal Thubert
IPC分类号： G06F15/16 , H04L29/12 , H04W8/26 , H04W80/04
CPC分类号： H04L61/2084 , H04L29/12066 , H04L29/12226 , H04L29/12311 , H04L29/12915 , H04L29/12933 , H04L61/1511 , H04L61/2015 , H04L61/203 , H04L61/6059 , H04L61/6068 , H04W8/26 , H04W80/04
摘要： The present disclosure generally provides techniques for establishing a unique, ephemeral home address (hoa)/home agent address (ha′) address pair that may be limited to use in a session having a defined lifetime. Limiting the use of this dynamic address pair to a session lifetime and by preventing a mobile node from knowing the static address of a home agent may help protect the home agent from attacks.
摘要翻译：本公开通常提供用于建立唯一的即时住宅地址（hoa）/归属代理地址（ha'）地址对的技术，该地址对可被限制在具有定义的生存期的会话中使用。将该动态地址对的使用限制为会话生存时间并且通过阻止移动节点知道归属代理的静态地址可以有助于保护归属代理免受攻击。

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