公开(公告)号：US07848335B1

公开(公告)日：2010-12-07

申请号：US11260839

申请日：2005-10-27

Applicant: Yong Kang ,  Changming Liu ,  Yonghui Cheng

Inventor： Yong Kang ,  Changming Liu ,  Yonghui Cheng

IPC: H04L12/28

CPC classification number: H04L63/0272 ,  H04L12/4633 ,  H04L12/4641 ,  H04L45/10 ,  H04L45/54 ,  H04L2212/00

Abstract: A virtual private network (VPN) tunnel is established that extends from a source spoke to a destination spoke in a hub-and-spoke enterprise network. Prior to establishing the VPN tunnel, packets are sent from the source spoke to the destination spoke through the hub network. In this manner, packets are not dropped while the VPN tunnel is being set up. The VPN tunnel is established by querying a server for the network address of a destination router in the destination spoke, then setting up the VPN tunnel using a secure communication protocol. An extension to the Internet Key Exchange (IKE) protocol is used to obtain the private network address of the destination router during setup of the VPN tunnel. A forwarding table is updated after the VPN tunnel is established to reroute the packets through the new VPN tunnel.

Abstract translation: 建立了一个虚拟专用网（VPN）隧道，该隧道从辐射源辐射到中心辐射企业网络中的目的地。 在建立VPN隧道之前，通过集线器网络将数据包从源辐条发送到目的地。 以这种方式，在VPN隧道建立时，数据包不会丢弃。 通过向服务器查询目的地分支中的目的地路由器的网络地址，然后使用安全通信协议设置VPN隧道来建立VPN隧道。 在VPN隧道建立过程中，使用Internet密钥交换协议（IKE）协议来扩展目的路由器的私有网络地址。 在建立VPN隧道后，通过新的VPN隧道重新路由数据包，更新转发表。

公开(公告)号：US08127349B2

公开(公告)日：2012-02-28

申请号：US12834726

申请日：2010-07-12

Applicant: Changming Liu ,  Choung-Yaw Shieh ,  Yonghui Cheng

Inventor： Changming Liu ,  Choung-Yaw Shieh ,  Yonghui Cheng

IPC: G06F9/00 ,  G06F15/16 ,  G06F17/00

CPC classification number: H04L45/00 ,  H04L12/4633 ,  H04L29/06 ,  H04L63/0272 ,  H04L63/20

Abstract: A system establishes a virtual private network (VPN) tunnel to a destination and determines a next hop for the VPN tunnel. The system inserts the next hop, and an address associated with the destination, into an entry of a first table. The system inserts the next hop, and a tunnel identifier corresponding to the established VPN tunnel, into an entry of a second table. The system associates one or more security parameters, used to encrypt traffic sent via the VPN tunnel, with the tunnel identifier.

Abstract translation: 系统建立到目的地的虚拟专用网（VPN）隧道，并确定VPN隧道的下一跳。 系统将下一跳和与目的地相关联的地址插入到第一个表的条目中。 系统将下一跳和对应于已建立的VPN隧道的隧道标识符插入第二个表的条目。 该系统将用于加密经由VPN隧道发送的流量的一个或多个安全参数与隧道标识符相关联。

公开(公告)号：US07779461B1

公开(公告)日：2010-08-17

申请号：US10988835

申请日：2004-11-16

Applicant: Changming Liu ,  Choung-Yaw Shieh ,  Yonghui Cheng

Inventor： Changming Liu ,  Choung-Yaw Shieh ,  Yonghui Cheng

IPC: G06F9/00 ,  G06F15/16 ,  G06F17/00

CPC classification number: H04L45/00 ,  H04L12/4633 ,  H04L29/06 ,  H04L63/0272 ,  H04L63/20

Abstract: A system establishes a virtual private network (VPN) tunnel to a destination and determines a next hop for the VPN tunnel. The system inserts the next hop, and an address associated with the destination, into an entry of a first table. The system inserts the next hop, and a tunnel identifier corresponding to the established VPN tunnel, into an entry of a second table. The system associates one or more security parameters, used to encrypt traffic sent via the VPN tunnel, with the tunnel identifier.

Abstract translation: 系统建立到目的地的虚拟专用网（VPN）隧道，并确定VPN隧道的下一跳。 系统将下一跳和与目的地相关联的地址插入到第一个表的条目中。 系统将下一跳和对应于已建立的VPN隧道的隧道标识符插入第二个表的条目。 该系统将用于加密经由VPN隧道发送的流量的一个或多个安全参数与隧道标识符相关联。

公开(公告)号：US08483183B2

公开(公告)日：2013-07-09

申请号：US13528729

申请日：2012-06-20

Applicant: Changming Liu ,  Yong Kang ,  Jianlin Zeng ,  Sreekanth Reddy

Inventor： Changming Liu ,  Yong Kang ,  Jianlin Zeng ,  Sreekanth Reddy

IPC: H04W4/00

CPC classification number: H04W36/0011 ,  H04L12/4633 ,  H04L63/0876 ,  H04W8/005 ,  H04W8/02 ,  H04W8/087 ,  H04W8/18 ,  H04W8/26 ,  H04W12/04 ,  H04W28/08 ,  H04W36/0016 ,  H04W36/0061 ,  H04W36/0066 ,  H04W36/08 ,  H04W36/245 ,  H04W48/16 ,  H04W76/12 ,  H04W76/22 ,  H04W84/12 ,  H04W88/08

Abstract: Wireless access points detect neighboring wireless access points in different subnets. Upon connecting with a wireless client, a wireless access point determines predictive roaming information for the wireless client. Predictive roaming information identifies the wireless client; its home network subnet; and includes connection information associated with the wireless client. The wireless access point forwards the predictive roaming information associated with a wireless client to neighboring wireless access points while the wireless client is still connected with the wireless access point. Neighboring wireless access points store received predictive roaming information. Upon connecting with a wireless client, a neighboring wireless access point determines if the wireless client matches the stored predictive roaming information. If so, the neighboring wireless access point uses the predictive roaming information to quickly connect with the wireless client and to establish a tunnel to redirect network traffic associated with the wireless client through to its home subnet.

公开(公告)号：US08218502B1

公开(公告)日：2012-07-10

申请号：US12120338

申请日：2008-05-14

Applicant: Changming Liu ,  Yong Kang ,  Jianlin Zeng ,  Sreekanth Reddy

Inventor： Changming Liu ,  Yong Kang ,  Jianlin Zeng ,  Sreekanth Reddy

IPC: H04W4/00 ,  H04W40/00 ,  H04W72/00

CPC classification number: H04W36/0011 ,  H04L12/4633 ,  H04L63/0876 ,  H04W8/005 ,  H04W8/02 ,  H04W8/087 ,  H04W8/18 ,  H04W8/26 ,  H04W12/04 ,  H04W28/08 ,  H04W36/0016 ,  H04W36/0061 ,  H04W36/0066 ,  H04W36/08 ,  H04W36/245 ,  H04W48/16 ,  H04W76/12 ,  H04W76/22 ,  H04W84/12 ,  H04W88/08

Abstract: Wireless access points detect neighboring wireless access points in different subnets. Upon connecting with a wireless client, a wireless access point determines predictive roaming information for the wireless client. Predictive roaming information identifies the wireless client; its home network subnet; and includes connection information associated with the wireless client. The wireless access point forwards the predictive roaming information associated with a wireless client to neighboring wireless access points while the wireless client is still connected with the wireless access point. Neighboring wireless access points store received predictive roaming information. Upon connecting with a wireless client, a neighboring wireless access point determines if the wireless client matches the stored predictive roaming information. If so, the neighboring wireless access point uses the predictive roaming information to quickly connect with the wireless client and to establish a tunnel to redirect network traffic associated with the wireless client through to its home subnet.

Abstract translation: 无线接入点检测不同子网中的相邻无线接入点。 当与无线客户端连接时，无线接入点确定无线客户端的预测漫游信息。 预测漫游信息标识无线客户端; 其家庭网络子网; 并且包括与无线客户端相关联的连接信息。 当无线客户端仍然与无线接入点连接时，无线接入点将与无线客户端相关联的预测漫游信息转发到相邻的无线接入点。 相邻的无线接入点存储接收到的预测漫游信息。 在与无线客户端连接时，相邻无线接入点确定无线客户端是否匹配所存储的预测漫游信息。 如果是这样，相邻的无线接入点使用预测漫游信息来与无线客户端快速连接并且建立隧道以将与无线客户端相关联的网络流量重定向到其归属子网。

公开(公告)号：US08614989B2

公开(公告)日：2013-12-24

申请号：US13452437

申请日：2012-04-20

Applicant: Changming Liu ,  Yong Kang ,  Jianlin Zeng ,  Sreekanth Reddy

Inventor： Changming Liu ,  Yong Kang ,  Jianlin Zeng ,  Sreekanth Reddy

IPC: H04W4/00

CPC classification number: H04W36/0011 ,  H04L12/4633 ,  H04L63/0876 ,  H04W8/005 ,  H04W8/02 ,  H04W8/087 ,  H04W8/18 ,  H04W8/26 ,  H04W12/04 ,  H04W28/08 ,  H04W36/0016 ,  H04W36/0061 ,  H04W36/0066 ,  H04W36/08 ,  H04W36/245 ,  H04W48/16 ,  H04W76/12 ,  H04W76/22 ,  H04W84/12 ,  H04W88/08

Abstract: A network device of a subnet determines predictive roaming information for a wireless client. Predictive roaming information can identify the wireless client and a home network subnet of the wireless client. The network device provides predictive roaming information associated with a wireless client to neighboring subnets. Neighboring subnets store received predictive roaming information, and use the predictive roaming information if the wireless client roams to them.

公开(公告)号：US08582532B2

公开(公告)日：2013-11-12

申请号：US13452437

申请日：2012-04-20

Applicant: Changming Liu ,  Yong Kang ,  Jianlin Zeng ,  Sreekanth Reddy

Inventor： Changming Liu ,  Yong Kang ,  Jianlin Zeng ,  Sreekanth Reddy

IPC: H04W4/00

Abstract: A network device of a subnet determines predictive roaming information for a wireless client. Predictive roaming information can identify the wireless client and a home network subnet of the wireless client. The network device provides predictive roaming information associated with a wireless client to neighboring subnets. Neighboring subnets store received predictive roaming information, and use the predictive roaming information if the wireless client roams to them.

公开(公告)号：US20120201201A1

公开(公告)日：2012-08-09

申请号：US13452437

申请日：2012-04-20

Applicant: Changming Liu ,  Yong Kang ,  Jianlin Zeng ,  Sreekanth Reddy

Inventor： Changming Liu ,  Yong Kang ,  Jianlin Zeng ,  Sreekanth Reddy

IPC: H04W4/00

CPC classification number: H04W36/0011 ,  H04L12/4633 ,  H04L63/0876 ,  H04W8/005 ,  H04W8/02 ,  H04W8/087 ,  H04W8/18 ,  H04W8/26 ,  H04W12/04 ,  H04W28/08 ,  H04W36/0016 ,  H04W36/0061 ,  H04W36/0066 ,  H04W36/08 ,  H04W36/245 ,  H04W48/16 ,  H04W76/12 ,  H04W76/22 ,  H04W84/12 ,  H04W88/08

Abstract: A network device of a subnet determines predictive roaming information for a wireless client. Predictive roaming information can identify the wireless client and a home network subnet of the wireless client. The network device provides predictive roaming information associated with a wireless client to neighboring subnets. Neighboring subnets store received predictive roaming information, and use the predictive roaming information if the wireless client roams to them.

Abstract translation: 子网的网络设备确定无线客户端的预测漫游信息。 预测漫游信息可以识别无线客户端的无线客户端和无线客户端的归属网络子网。 网络设备向相邻子网提供与无线客户端相关联的预测漫游信息。 相邻的子网存储接收到的预测漫游信息，并且如果无线客户端漫游到它们，则使用预测漫游信息。

公开(公告)号：US08948046B2

公开(公告)日：2015-02-03

申请号：US11903443

申请日：2007-09-21

Applicant: Yong Kang ,  Changming Liu

Inventor： Yong Kang ,  Changming Liu

IPC: H04L12/28 ,  H04W40/24 ,  H04L12/705 ,  H04L12/701 ,  H04L12/733 ,  H04W4/06 ,  H04L12/751 ,  H04W40/02 ,  H04W40/36 ,  H04L12/707 ,  H04W84/00 ,  H04W40/30

CPC classification number: H04W40/02 ,  H04L41/0893 ,  H04L45/00 ,  H04L45/02 ,  H04L45/18 ,  H04L45/20 ,  H04L45/22 ,  H04W4/06 ,  H04W40/24 ,  H04W40/246 ,  H04W40/30 ,  H04W40/36 ,  H04W84/005

Abstract: A method and system for selecting a route in a wireless network for the transmission of a data packet between wireless nodes in said network using a modified link-state routing algorithm wherein only a limited number of broadcast messages are generated to synchronize the link-state database throughout the wireless network. A subset of nodes called portal nodes within the network are elected to do the broadcasting for the entire network. Each portal node broadcasts an announcement of its identity to all of the wireless nodes. Each wireless node responds to these broadcasts to select one of the portal nodes as its root portal node. It then identifies a unicast route back to its root portal node, and sends a link-state register message to this portal node. These link-state register messages received by each portal node are aggregated by them and are broadcast to each of the wireless nodes for storage. When a data packet is thereafter received by a wireless node from a neighboring node, it detects if the data packet satisfies one of a plurality of predetermined conditions and rebroadcasts the data packet to neighboring wireless nodes if none of the conditions is satisfied.

Abstract translation: 一种用于在无线网络中选择用于在所述网络中的无线节点之间传输数据分组的路由的方法和系统，其使用修改的链路状态路由算法，其中仅生成有限数量的广播消息以同步链路状态数据库 在整个无线网络。 网络中称为门户节点的节点子集被选为整个网络的广播。 每个门户节点向所有无线节点广播其身份的公告。 每个无线节点响应这些广播以选择一个门户网站节点作为其根门户节点。 然后，将单播路由标识回其根端口节点，并向该门户节点发送链路状态注册消息。 由每个门户节点接收的这些链路状态寄存器消息被它们聚合，并被广播到每个无线节点用于存储。 当无线节点之后的数据分组从相邻节点接收时，如果没有条件满足，则检测数据分组是否满足多个预定条件中的一个，并将数据分组重新广播到相邻无线节点。

公开(公告)号：US20120281630A1

公开(公告)日：2012-11-08

申请号：US13528729

申请日：2012-06-20

Applicant: Changming Liu ,  Yong Kang ,  Jianlin Zeng ,  Sreekanth Reddy

Inventor： Changming Liu ,  Yong Kang ,  Jianlin Zeng ,  Sreekanth Reddy

IPC: H04W8/14

CPC classification number: H04W36/0011 ,  H04L12/4633 ,  H04L63/0876 ,  H04W8/005 ,  H04W8/02 ,  H04W8/087 ,  H04W8/18 ,  H04W8/26 ,  H04W12/04 ,  H04W28/08 ,  H04W36/0016 ,  H04W36/0061 ,  H04W36/0066 ,  H04W36/08 ,  H04W36/245 ,  H04W48/16 ,  H04W76/12 ,  H04W76/22 ,  H04W84/12 ,  H04W88/08

Abstract: Wireless access points detect neighboring wireless access points in different subnets. Upon connecting with a wireless client, a wireless access point determines predictive roaming information for the wireless client. Predictive roaming information identifies the wireless client; its home network subnet; and includes connection information associated with the wireless client. The wireless access point forwards the predictive roaming information associated with a wireless client to neighboring wireless access points while the wireless client is still connected with the wireless access point. Neighboring wireless access points store received predictive roaming information. Upon connecting with a wireless client, a neighboring wireless access point determines if the wireless client matches the stored predictive roaming information. If so, the neighboring wireless access point uses the predictive roaming information to quickly connect with the wireless client and to establish a tunnel to redirect network traffic associated with the wireless client through to its home subnet.

Abstract translation: 无线接入点检测不同子网中的相邻无线接入点。 当与无线客户端连接时，无线接入点确定无线客户端的预测漫游信息。 预测漫游信息标识无线客户端; 其家庭网络子网; 并且包括与无线客户端相关联的连接信息。 当无线客户端仍然与无线接入点连接时，无线接入点将与无线客户端相关联的预测漫游信息转发到相邻的无线接入点。 相邻的无线接入点存储接收到的预测漫游信息。 在与无线客户端连接时，相邻无线接入点确定无线客户端是否匹配所存储的预测漫游信息。 如果是这样，相邻的无线接入点使用预测漫游信息来与无线客户端快速连接并且建立隧道以将与无线客户端相关联的网络流量重定向到其归属子网。