Arrangement for tracking IP address usage based on authenticated link identifier
US8068414B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 9, 2004 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Dec 15, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/146
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Link layer authentication information is supplied by a link layer authentication device to an access router for tracking IP address usage by a client device. The authentication information supplied to the access router includes an authenticated client identifier and a corresponding authenticated link identifier for the client device that attached to the network based on the authenticated link identifier. The access router, in response to receiving a message that specifies the authenticated link identifier and a source IP address, adds the source IP address to a cache entry that specifies the authenticated client identifier and the corresponding authenticated link identifier, and outputs to an audit resource a record that specifies the source IP address and the authenticated link identifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.