Method for managing IP tunnels
US8432922B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2008 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | Sep 24, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2212/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for managing Internet Protocol (IP) tunnels is provided. The method is executed by a local host. There is at least one IP tunnel planned between the local host and a remote host. The method comprises the following steps. If the local addresses of the tunnels include dynamic IP addresses, acquire the dynamic IP addresses. All tunnels with known remote addresses are built. If there are known remote addresses and the local addresses include dynamic IP addresses, send a notification to the remote host, wherein the notification includes all local dynamic IP addresses. If any local address changes, all tunnels with changed local addresses and known remote addresses are rebuilt. A message is received from the remote host and classified. If the message is a notification, the tunnels are updated according to the remote addresses included in the message, and an acknowledgement is sent back to the remote host.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.