Wireless ad hoc network security
Granted: April 23, 2013
Patent Number:
8428516
Providing network security includes detecting network traffic associated with an ad hoc network that includes a first station and a second station, and preventing data sent by the first station from reaching the second station.
Efficient multicast control processing for a wireless network
Granted: April 16, 2013
Patent Number:
8422939
According to one embodiment of the invention, a method comprises detecting, by a wireless network switch, a new association between an access point and a wireless station. Thereafter, a first message is transmitted from the wireless network switch. The first message is adapted to cause the access point to (i) join a multicast group to which the wireless station is a member and (ii) transmit a multicast message directly to a multicast router without routing the multicast message via the…
System and method for advertising the same service set identifier for different basic service sets
Granted: March 19, 2013
Patent Number:
8401554
According to one embodiment of the invention, a method comprises advertising services by a first wireless device. The services are provided by different basic service sets, each basic service set having the same service set identifier (SSID). Thereafter, one of the basic service sets is selected.
Stateless cryptographic protocol-based hardware acceleration
Granted: March 5, 2013
Patent Number:
8392968
According to one embodiment of the invention, a method comprises an operation of commencing a first phrase and transfer processing of an authentication handshaking protocol. The first state is commenced for establishing a secure communication path by a first processor within a first network device. The first phrase comprises an exchange of data during a networking protocol. The transfer of processing for the networking protocol by the first processor to a second processor is conducted to…
System and method for provisioning a unique device credential
Granted: March 5, 2013
Patent Number:
8392712
According to one embodiment of the invention, a method for controlling access to a network comprises a first operation of determining one or more device characteristics of an electronic device seeking to join the network. Then, one or more unique device credentials are generated for the electronic device. The format of the unique device credentials are based on the one or more device characteristics of the electronic device.
Sensing device orientation in wireless networks
Granted: January 8, 2013
Patent Number:
8351546
Sensing installed orientation of an antenna or access node in a wireless digital network. According to one aspect of the invention, an orientation sensor such as a 2 or 3 axis accelerometer is provided in the access node. The orientation sensor may be attached to the access node housing, directly or through a substrate, attached to the main logic board of the access node, or may be mounted to an antenna. The orientation sensor may be mounted to the same substrate as is used to form an…
Network device and method for calculating energy savings based on remote work location
Granted: November 20, 2012
Patent Number:
8315896
Calculating and validating energy savings. Energy savings from programs such as telework are calculated and validated through the use of authenticated remote access systems. A person or device working away from the place of work authenticates themselves with a remote access system using a personal digital device. Through such authenticated remote access logs including location information, systems can determine where a person and/or device is, and is not. Energy savings can be calculated…
Method and system for creating and deploying a mesh network
Granted: November 20, 2012
Patent Number:
8315638
A method and system for creating and deploying a mesh network are disclosed. In one embodiment, the method comprises providing a mesh router having a plurality of radios. The mesh router is used in a cell of a plurality of cells that covers a geographic region. Channels are assigned to the plurality of radios. The channels are selected from a plurality of channels to allow channel reuse throughout the plurality of cells.
Single number presentation for dual-mode phones
Granted: October 23, 2012
Patent Number:
8295878
Providing a single number presentation to the party called by a dual-mode phone. The operation of the cellular side of a dual-mode phone is altered such that when the user attempts to place an outgoing call using the cellular phone, the call is redirected to a preprogrammed incoming phone number associated with the enterprise. When the enterprise PBX answers this call, the dual-mode phone transmits the desired number to the enterprise PBX. The enterprise PBX then places the call to the…
VLAN pooling
Granted: August 21, 2012
Patent Number:
8248927
According to one embodiment of the invention, a method for forming groups of network device within a network comprises (i) obtaining a source media access control (MAC) address for a network device and (ii) assigning the network device to a virtual local area network based on the source MAC address and a total number of virtual local area networks supported by a network.
Harvesting entropy from trusted cryptographic sources
Granted: August 21, 2012
Patent Number:
8250127
Extending entropy in a random number generation utility. Where a device has access to trusted sources of encrypted data, such as encrypted network traffic, such encrypted network traffic may be sampled and the bits fed into the entropy seeding routines of the random number generation utility.
Method and apparatus for policy-based network access control with arbitrary network access control frameworks
Granted: August 14, 2012
Patent Number:
8245281
A method and apparatus for integrating various network access control frameworks under the control of a single policy decision point (PDP). The apparatus supports pluggable protocol terminators to interface to any number of access protocols or backend support services. The apparatus contains Trust and Identity Mediators to mediate between the protocol terminators and a canonical policy subsystem, translating attributes between framework representations, and a canonical representation…
Multi-pattern wireless frame transmission
Granted: July 17, 2012
Patent Number:
8223072
Multi-pattern transmission of wireless frames. A digital device contains a transmitter feeding an electronically steerable antenna system where the radiation pattern produced by the antenna system may be selected. Different antenna radiation patterns are used in transmitting a first portion of a wireless frame and a second portion of a wireless frame in a wireless digital network. In one embodiment, a first portion of a wireless frame is transmitted using a wide radiation pattern while…
Efficient multicast control processing for a wireless network
Granted: June 12, 2012
Patent Number:
8199732
According to one embodiment of the invention, a method comprises an exchange of messages between an access point and a wireless network switch. One message, a PROXY IGMP JOIN message, is transmitted to the access point for propagation to a multicast router. This is performed so that multicast data associated with the multicast group identified by the PROXY IGMP JOIN message is routed to the access point without any unnecessary involvement by the wireless network switch.
Wireless network device
Granted: May 29, 2012
Patent Number:
D660839
VLAN tunneling
Granted: April 17, 2012
Patent Number:
8161543
According to one embodiment of the invention, a method for establishing multiple tunnels for each virtual local area network is described. Upon receiving information over a first tunnel associated with a first virtual local area network, a determination is made whether the information is from a network device assigned to a second virtual local area network, which differs from the first virtual local area network. If the network device is a member of the second virtual local area network,…
Supporting idle stations in wireless distribution systems
Granted: April 10, 2012
Patent Number:
8155054
Supporting idle stations in an IEEE 802.11 wireless distribution system. When a station in an IEEE 802.11 wireless distribution system (DS) enters the idle state, it is not associated with any access points (APs) in the DS, Prior to entering the idle state, a station may establish filters indicating what traffic it wishes to receive. These filters are sent to a server in the DS. When a station goes idle, it is associated with a paging server in the DS, which buffers all received for the…
Client balancing in wireless networks
Granted: April 10, 2012
Patent Number:
8155058
Client balancing in a wireless digital network comprising a plurality of access nodes connected to a controller. Access nodes collect client density information and periodically report that client density information to the controller. The controller uses the client density information from the access nodes to compute Virtual RF Neighborhoods, identifying Virtual RF neighboring access nodes. Two access nodes are Virtual RF neighbors if a client which can connect to one access node can…
Wireless network device
Granted: April 3, 2012
Patent Number:
D656937
Wireless ad hoc network security
Granted: March 27, 2012
Patent Number:
8145131
Providing network security includes detecting network traffic associated with an ad hoc network that includes a first station and a second station, and preventing data sent by the first station from reaching the second station.
