Verifying availability and reachability through a network device
US9083586B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2011 |
| Grant date | Jul 14, 2015 |
| Priority date | — |
| Expiry date | Nov 29, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/28
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In an embodiment, in response to receiving from a client computer a client request to connect to a server: processing the client request in a network protection device including applying one or more translations and one or more security checks, generating a server acknowledgment to the client computer as if the server acknowledged receiving the client request from the client computer, processing the server acknowledgement in the network protection device including applying one or more translations and one or more security checks and sending the server acknowledgment to the client computer; in response to receiving a client acknowledgment of receiving the server acknowledgment, determining that a first path between the client computer and the network protection device is operational; generating a server request to the server; processing the server request in the network protection device, determining that a second path between the network protection device and the server is operational.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.