Extensions to IPv6 neighbor discovery protocol for automated prefix delegation
US8045558B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 23, 2007 |
| Grant date | Oct 25, 2011 |
| Priority date | — |
| Expiry date | Aug 12, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2101/659
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In one embodiment, a method comprises detecting, by a router, a first router advertisement message from an attachment router that provides an attachment link used by the router, the first router advertisement message specifying a first IPv6 address prefix owned by the attachment router and usable for address autoconfiguration on the attachment link. The router detects an unsolicited delegated IPv6 address prefix from the attachment router and that is available for use by the router. The router claims a second IPv6 address prefix from at least a portion of the delegated IPv6 address prefix, for use on at least one ingress link of the router.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.