Limiting data packet forwarding to trusted ports
US7869394B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 2006 |
| Grant date | Jan 11, 2011 |
| Priority date | — |
| Expiry date | Oct 25, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0236
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
This document describes tools that forward data packets to trusted ports and prevent data packets from egressing non-trusted ports. To do so, the tools receive a data packet having a destination address specifying that the data packet be forwarded to a set of ports associated with a domain. The tools identify a subset of the set of ports as trusted ports and forward the data packet to the subset. The tools prevent the data packet from egressing non-trusted ports of the set. In one embodiment, the tools may classify a port as trusted. To do so, the tools receive a configuration communication identifying trusted devices. The tools broadcast a request to the trusted devices and receive a reply from a reply device on a reply port. The tools determine that the reply device is one of the trusted devices and mark the reply port as a trusted port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.