Internet protocol (IP) version 6 fragmentation and reassembly optimization for port-aware IP translators
US12170647B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 24, 2022 |
| Grant date | Dec 17, 2024 |
| Priority date | — |
| Expiry date | Apr 25, 2043 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L69/166
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A network device may receive IPv6 fragments of a flow. Source and/or destination port information may be encoded into an upper sixteen bits of an identification number of an IPv6 fragment header of each of the IPv6 fragments. The network device may extract the source and/or destination port information from the IPv6 fragments, and may perform a spoof check of the IPv6 fragments. The network device may drop any of the IPv6 fragments that fail the spoof check, to generate remaining IPv6 fragments, and may translate the remaining IPv6 fragments into IPv4 fragments based on the source and/or destination port information. The network device may forward the IPv4 fragments toward an IPv4 cloud network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.