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公开(公告)号:US12244559B2
公开(公告)日:2025-03-04
申请号:US18501275
申请日:2023-11-03
Applicant: Cisco Technology, Inc.
Inventor: Roberto Muccifora , Domenico Ficara , Amine Choukir , Anirban Karmakar , Vincent Cuissard , Sudhir Kumar Jain
IPC: H04L61/5061 , H04L61/5053 , H04W88/02
Abstract: Techniques are provided that rotate a device address used to identify a wireless client device on a wireless network. The wireless client device and at least one network infrastructure component identify a plurality of device addresses associated with the wireless client device. In some embodiments, the plurality of device addresses are generated via a corresponding plurality of invocations of a stateful random number generator, such as a cryptographically secure pseudorandom number generator.
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公开(公告)号:US12193109B2
公开(公告)日:2025-01-07
申请号:US18333767
申请日:2023-06-13
Applicant: Cisco Technology, Inc.
Inventor: Vimal Srivastava , Indermeet Singh Gandhi , Sudhir Kumar Jain , Srinath Gundavelli
Abstract: A Radio Access Network (RAN) element provides an internet indication to a User Equipment (UE) to enable the UE to quickly obtain internet access. The RAN element determines that the RAN element is connected to at least one gateway that provides public internet access, and broadcasts an internet indication. The RAN element determines that the UE has requested public internet access via the RAN element and provides the UE with public internet access.
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公开(公告)号:US20240022945A1
公开(公告)日:2024-01-18
申请号:US18476737
申请日:2023-09-28
Applicant: Cisco Technology, Inc.
Inventor: Jerome Henry , Nancy Cam-Winget , Simone Arena , Darrin Joseph Miller , Sudhir Kumar Jain , Einar Nilsen-Nygaard
IPC: H04W28/02 , H04W8/24 , H04W28/086
CPC classification number: H04W28/0205 , H04W28/0215 , H04W8/245 , H04W28/086
Abstract: Embodiments identify a station that rotates an over the air station address. As address rotation was not originally designed into wireless networks, the rotation can introduce communication challenges for the station. The embodiments derive that traffic referencing two different over the air station addresses are associated with a single common station. This is accomplished by determining a similarity between properties of two sets of traffic. A first set of traffic references the first over the air station address and a second set of traffic references the second over the air station address. If the properties common across the two sets of traffic indicate sufficient similarity, the embodiments determine that both sets of traffic are associated with a single device. Network configuration of the device is then adjusted based on the determination.
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公开(公告)号:US20230371052A1
公开(公告)日:2023-11-16
申请号:US18359511
申请日:2023-07-26
Applicant: Cisco Technology, Inc.
Inventor: Jerome Henry , Sudhir Kumar Jain , Aries Kuttiyan
Abstract: Techniques to adaptively support/enable a wireless network feature for certain wireless client devices without hampering the performance or connectivity of wireless client devices which do not support that wireless network feature. An access point or wireless network controller adaptively enables a wireless network feature without advertising support for the wireless network feature in a wireless network-standard compliant manner to allow one or more wireless clients that support the wireless network feature to use the wireless network feature when associated to the access point while enabling association of one or more wireless clients that do not support the wireless network feature.
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公开(公告)号:US11375398B2
公开(公告)日:2022-06-28
申请号:US16680684
申请日:2019-11-12
Applicant: Cisco Technology, Inc.
Inventor: Rupak Chandra , Sudhir Kumar Jain , Veselin Ganev , Prithvi Manduva , Muhammad Arif Shamim , Patrick Jean Marc Grossetete
Abstract: In one embodiment, a client device having a plurality of radios obtains a list of basic service set identifiers (BSSIDs) for a plurality of wireless access points of a wireless network. The client device associates each of the plurality of radios of the client device with a different wireless access point of the wireless network, based on the obtained list of BSSIDs. The client device receives a copy of a data packet from a particular one of the associated wireless access points. Each of the associated wireless access points receives a replicated copy of the data packet to be transmitted towards the client device. The device causes the associated wireless access points to cease further transmission of their copies of the data packet by acknowledging receipt of the data packet to the particular wireless access point.
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公开(公告)号:US20220183111A1
公开(公告)日:2022-06-09
申请号:US17111625
申请日:2020-12-04
Applicant: Cisco Technology, Inc.
Inventor: Vincent Cuissard , Domenico Ficara , Alessandro Erta , Luca Bisti , Kasi Nalamalapu , Sudhir Kumar Jain , Salvatore Valenza , Arun Khanna , Stefano Ferrari , Loris Gazzarrini
Abstract: In one embodiment, a gateway to a Layer-3 network forms a first Layer-2 tunnel between the gateway and a first wireless access point (AP) that communicates wirelessly with a first mobile node of a mobile system (MS) via a first wireless connection. The gateway generates a mapping that associates an onboard device of the MS with the first AP and an identifier for the MS, based on traffic conveyed via the first Layer-2 tunnel and associated with the onboard device, the traffic comprising a header that indicates the identifier for the MS. The gateway receives, from a second AP, an indication that the MS is roaming from the first wireless connection to a second wireless connection, the indication including the identifier for the MS. The gateway updates the mapping to associate the onboard device of the MS with a second AP, based on the indication that the MS is roaming.
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公开(公告)号:US20210014684A1
公开(公告)日:2021-01-14
申请号:US17028455
申请日:2020-09-22
Applicant: Cisco Technology, Inc.
Inventor: Suja Thangaveluchamy , Niranjan Mallapura Mallikarjunaiah , Aries Kuttiyan , Sudhir Kumar Jain , Vijay Kumar Kothamasu , Ramachandra Murthy S
Abstract: A default pre-shared key is provided from a first device to a second device. The first device is configured to control network access to a network. A first authentication request is obtained at the first device from a third device. The first authentication request includes data indicative of the second device. A first response to the first authentication request is provided from the first device to the third device. The first response includes the default pre-shared key. A second authentication request containing a private pre-shared key and the data indicative of the second device is obtained at the first device from the third device. Stored data at the first device is updated in response to the second authentication request with the private pre-shared key and the data indicative of the second device to provision the first device to provide network access to the network to the second device.
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公开(公告)号:US20200260431A1
公开(公告)日:2020-08-13
申请号:US16864707
申请日:2020-05-01
Applicant: Cisco Technology, Inc.
Inventor: Jerome Henry , Sudhir Kumar Jain , Aries Kuttiyan
Abstract: Techniques to adaptively support/enable a wireless network feature for certain wireless client devices without hampering the performance or connectivity of wireless client devices which do not support that wireless network feature. An access point or wireless network controller adaptively enables a wireless network feature without advertising support for the wireless network feature in a wireless network-standard compliant manner to allow one or more wireless clients that support the wireless network feature to use the wireless network feature when associated to the access point while enabling association of one or more wireless clients that do not support the wireless network feature.
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公开(公告)号:US20200162915A1
公开(公告)日:2020-05-21
申请号:US16194550
申请日:2018-11-19
Applicant: Cisco Technology, Inc.
Inventor: Abhishek Dhammawat , Sudhir Kumar Jain , Mansi Jain
Abstract: A wireless network environment includes a plurality of access points, a wireless local area network (WLAN) controller, and a plurality of client devices. The client devices attempt to authenticate with the WLAN controller to gain access to wireless services provided by the WLAN controller and/or the access points. To authenticate with the WLAN controller, the WLAN controller obtains a request to establish a wireless network connection from one or more of the client devices. The WLAN controller then provides a response to the request. The response indicates whether the WLAN controller supports performing password-mapped simultaneous authentication of equals (SAE). The WLAN controller then obtains a message including a password-mapped identifier from the client device. The WLAN controller then establishes a connection with the client device based on the password obtained with password-mapped identifier mapping at WLC.
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公开(公告)号:US10470086B2
公开(公告)日:2019-11-05
申请号:US15701851
申请日:2017-09-12
Applicant: Cisco Technology, Inc.
Inventor: Jerome Henry , Robert Barton , Sudhir Kumar Jain
IPC: H04W36/00 , H04L12/859 , H04W88/12 , H04W84/12 , H04W36/14
Abstract: Stateful roaming techniques are provided for use in a wireless network. In one embodiment, a method is provided that includes: obtaining flow information descriptive of one or more traffic flows associated with a wireless client device that is associated to a current access point in a wireless network; storing state data representing the flow information for flows associated with the wireless client device together with a traffic descriptor for each flow; determining that the wireless client device is seeking to roam from the current access point to a new access point; and sending the state data for the wireless client device to the new access point to enable the new access point to apply a policy based on the state data before the wireless client device completes its roam to the new access point.
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