Recording stateless IP addresses
US8832238B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2011 |
| Grant date | Sep 9, 2014 |
| Priority date | — |
| Expiry date | Dec 17, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2101/659
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Techniques are described for recording stateless internet protocol (IP) addresses. A DHCP server may receive information requests and/or other communications from a stateless IPv6 client that can be employed to ascertain corresponding IP addresses generated by the client. In one approach, the DHCP server is configured to parse appropriate communications to find information indicative of a stateless IP address. This may include extracting a subnet prefix of the IPv6 client and an interface ID which identifies the specific network interface employed by the client for communications. The DHCP server uses this information to generate corresponding IP addresses. The DHCP server records the extracted information and/or generated addresses in its database (e.g., IP address event log). The DHCP server is then able to provide a count of clients and percentage utilization for a network using the recorded addressing information.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.