Communication method and apparatus using IP address of VPN gateway for mobile node in a VPN
US7805754B2 · kind B2 · utility
5Cited by
2References
57Claims
0Family size
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Key dates
| Filing date | Nov 14, 2005 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Jul 11, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W80/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A communication method and apparatus using the IP address of a gateway for an MN in a VPN are provided. When the MN is to access the VPN, the gateway acting an FA in the VPN performs a Mobile IP registration on behalf of the MN and is allocated a HoA for the MN from an HA. Therefore, the number of addresses required for the Mobile IP registration of the MN is reduced and overlap between an IP-in-IP tunnel for Mobile Internet and an IPsec tunnel for the VPN is avoided. As a result, packet transmission overhead is reduced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.