Guard system for automatic network flow controls for internet of things (IoT) devices
US11165805B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2019 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Jul 9, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/1483
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, apparatus and computer program product for use in identifying and blocking operation of compromised or potentially compromised IoT device(s) on a network, such as a local network behind a router or firewall. To this end, the technique provides for automated and seamless on-boarding of a “guard” system for IoT devices, preferably as those devices join (or re-join) into the network via a Dynamic Host Configuration Protocol message exchange. In operation, and in response to receipt of a DHCP discover message that includes a network location, a DHCP server uses the network location to locate and retrieve a set of flow attributes for the device. Those attributes are then associated with the IP address to be assigned to the IoT device in a network control device. The network control device then selectively identifies and/or blocks operation of the IoT device when the IoT device is compromised or potentially compromised, thereby protecting the network (or network resources) from damage or misuse.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.