Connecting IPv6 devices through IPv4 network and network address translator (NAT) using tunnel setup protocol
US7305481B2 · kind B2 · utility
20Cited by
6References
28Claims
0Family size
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Key dates
| Filing date | Jan 7, 2003 |
| Grant date | Dec 4, 2007 |
| Priority date | — |
| Expiry date | Jul 7, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/045
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A tunnel setup protocol enables tunnel clients to set up IPv6-in-IPv4 networks to permit IPv6 nodes to communicate across the IPv4 network using IPv6 native packets, even if the IPv4 network contains a Network Address Translation function. The tunnel setup protocol uses a control channel to negotiate tunnel configuration parameters and exchange tunnel configuration data between a tunnel client and a tunnel broker server. The tunnel setup is automatic, and migration to IPv6 is ameliorated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.