Techniques for assigning internet protocol version six network blocks in unknown networks
US9112764B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 20, 2011 |
| Grant date | Aug 18, 2015 |
| Priority date | — |
| Expiry date | Feb 21, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A gateway router apparatus sends a first multicast SOLICIT message with a prefix length hint based on a number of network segments associated with the apparatus. The apparatus receives a second multicast SOLICIT message with a prefix length hint, from a downstream router in a premises network. At the apparatus, the following are recorded: (i) an estimated prefix length associated with the second multicast SOLICIT message; and (ii) an interface associated with the second multicast SOLICIT message. At the apparatus, a first ADVERTISE message is received, and a REQUEST message is sent, both over the internet. The REQUEST message specifies a prefix length based on the number of network segments associated with the apparatus and the recorded estimated prefix length associated with the second multicast SOLICIT message. The apparatus sends a second ADVERTISE message advertising ability of the apparatus to delegate prefixes in accordance with the REQUEST message.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.