Internet protocol address filtering methods and apparatus
US10389631B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | Apr 28, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/7453
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An IP address of a received data packet is determined. An IP address map that stores set membership values indicative of whether an IP address is a member of a set of IP addresses, for every possible IP address within an IP address space of the IP address, is accessed to determine set membership for the IP address of the data packet. A further action to be performed on the packet is determined based on the set membership that is determined for the IP address of the data packet. Embodiments could be applied to source IP address filtering, destination IP address filtering, or both. Blacklist and whitelist embodiments, and associated further actions that could be applied to packets in such embodiments, are contemplated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.