Method and system for dual-network address utilization
US6708219B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 26, 1999 |
| Grant date | Mar 16, 2004 |
| Priority date | — |
| Expiry date | Oct 26, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2101/663
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The methods and system described herein help the transition from Internet Protocol version-4 (“IPv4”) networks to Internet Protocol version-6 (“IPv6”) networks. Dual address allocation of IPv4 and/or IPv6 network addresses is provided via a dual protocol stack. Network devices may communicate with legacy IPv4 networks while using IPv6 network addresses on an IPv6 network for local communications. IPv6 over IPv4 remote virtual tunnels are used to allow network devices using IPv6 network addresses on a local IPv6 network to communicate with remote IPv6 networks over IPv4 public networks IPv4 over IPv6 local virtual tunnels may be used to allow network devices to using IPv4 network addresses on a local IPv6 network to communicate with remote IPv4 public networks. The IPv4 addresses allocated include IPv4 addresses that may be allocated and used for Distributed Network Address Translation (“DNAT”) and/or the Realm Specific Internet Protocol (“RSIP”).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.