Firewall in a virtualized computing environment using physical network interface controller (PNIC) level firewall rules
US11677719B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 19, 2021 |
| Grant date | Jun 13, 2023 |
| Priority date | — |
| Expiry date | Mar 5, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0254
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Example methods are provided for a destination host to implement a firewall in a virtualized computing environment that includes the destination host and a source host. The method may comprise receiving, via a physical network interface controller (PNIC) of the destination host, an ingress packet sent by the source host. The ingress packet may be destined for a destination virtualized computing instance that is supported by the destination host and associated with a destination virtual network interface controller (VNIC). The method may further comprise retrieving a PNIC-level firewall rule associated with the destination virtualized computing instance, the PNIC-level firewall rule being applicable at the PNIC and generated by based on a VNIC-level firewall rule applicable at the destination VNIC. In response to determination that the PNIC-level firewall rule blocks the ingress packet from passing through, the ingress packet may be dropped such that the ingress packet is not sent to the destination VNIC.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.