US 11,637,809 B2Granted

Client device based solution for handling MAC randomization

AssigneeARRIS Enterprises LLC

InventorsJagdeep Shivajirao, Muralidharan Narayanan, Sathish Arumugam Chandrasekaran

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Abstract

A system and method are provided for a network device for use with a client device having a hostname and a MAC address. The network device contains a memory that has a second hostname and a second MAC address stored within the memory. The second MAC address corresponds to the second hostname. The memory also contains a processor configured to execute instructions stored on the memory to cause the network device to: receive, from the client device, the hostname and the MAC address; determine whether the MAC address is randomized; provide an instruction to the client device to inform a user of the client device that the client device hostname is registered when the hostname matches the second hostname and the MAC address is randomized.

Claims20

Dependent claims

A network device for use with a client device of one or more client devices in a network, the network device comprising:

a memory;
and
a processor configured to execute one or more instructions stored on the memory to cause the network device to:
associate the client device onto the network device, wherein the association of the client device is associated with an association timestamp;
receive, from the client device, a hostname and a MAC address;
update a cache table based on the hostname, the MAC address, and the association timestamp, wherein the cache table includes one or more hostnames associated with the one or more client devices, a list of one or more MAC addresses associated to the one or more hostnames, and one or more last association timestamps for each association onto the network device of the one or more client devices;
determine that the MAC address does not match any of the one or more MAC addresses of the cache table that are associated with the client device;
determine that the MAC address is randomized;
and
determine whether the hostname is known to the network, wherein:
if the hostname is not known to the network then, prompt a user of the network device to confirm trust in the client device;
and
if the hostname is known to the network then, allow the client device onto the network as a trusted device.

10 more elements

A method of using a network device with a client device of one or more client devices in a network, the method comprising:

associating the client device onto the network device, wherein the association of the client device is associated with an association timestamp;
receiving, from the client device, a hostname and a MAC address;
updating a cache table based on the hostname, the MAC address, and the association timestamp, wherein the cache table includes one or more hostnames associated with the one or more client devices, a list of one or more MAC addresses associated to the one or more hostnames, and one or more last association timestamps for each association onto the network device of the one or more client devices;
determining that the MAC address does not match any of the one or more MAC addresses of the cache table that are associated with the client device;
determining that the MAC address is randomized;
and
determining whether the hostname is known to the network, wherein:
if the hostname is not known to the network then, prompt a user of the network device to confirm trust in the client device;
and
if the hostname is known to the network then, allow the client device onto the network as a trusted device.

7 more elements

A non-transitory, computer-readable medium of a network device storing one or more computer-readable instructions that when executed by a processor, cause the processor to perform one or more operations comprising:

associating a client device of one or more client devices onto the network device, wherein the association of the client device is associated with an association timestamp;
receiving, from the client device, a hostname and a MAC address;
updating a cache table based on the hostname, the MAC address, and the association timestamp, wherein the cache table includes one or more hostnames associated with the one or more client devices, a list of one or more MAC addresses associated to the one or more hostnames, and one or more last association timestamps for each association onto the network device of the one or more client devices;
determining that the MAC address does not match any of the one or more MAC addresses of the cache table that are associated with the client device;
determining that the MAC address is randomized;
and
determining whether the hostname is known to the network, wherein:
if the hostname is not known to the network then, prompt a user of the network device to confirm trust in the client device;
and
if the hostname is known to the network then, allow the client device onto the network as a trusted device.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/868,005Filed 19 Jul 2022 · continuation
Priority: IN 20202103542117 Aug 2020
Published: US 2022/0052981 A13 Nov 2022
Granted: 25 Apr 2023
Term ends: Not estimatedThe source records don’t support an estimate.

Classification13 codes

H04L 61/5092
Address allocation: by self-assignment, e.g. picking addresses at random and testing if they are already in use
H04W 12/69
Context-dependent security: identity-dependent
H04L 41/0806
Configuration setting: for initial configuration or provisioning, e.g. plug-and-play
H04L 61/3015
Managing network names, e.g. use of aliases or nicknames: name registration, generation or assignment

Family

Application17/399,534Parent of this continuation · filed 11 Aug 2021
US 2022/0353238 A1Pre-grant publication · published 3 Nov 2022
US 11,431,675 B2Parent of this continuation
US 2022/0052981 A1Published application
US 11,637,809 B2This patent

From the US filing history. Foreign family members aren’t listed.