System and method for enabling VPN tunnel status checking
US8458248B2 · kind B2 · utility
3Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 24, 2010 |
| Grant date | Jun 4, 2013 |
| Priority date | — |
| Expiry date | Aug 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L61/4511
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for virtual private network (‘VPN’) liveness checking, the method, upon expiration of a timer, sending, over a VPN tunnel, a request to a server located behind a terminator of the VPN; checking whether a response to the request is received within a time interval; if a response to the request is received, resetting the timer; and if a response to the request is not received within the time interval, resending the request if a request count is less than a set number of requests; or providing an inactive tunnel indication to a VPN client manager if the request count equals the set number of requests.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.