Method, apparatus, and system for network address translation
US9515987B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2014 |
| Grant date | Dec 6, 2016 |
| Priority date | — |
| Expiry date | Sep 9, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L67/34
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, an apparatus, and a system for network address translation related to the field of communications technologies. A NAT control apparatus receives a network address migration message after a first data center migrates a NAT mapping entry corresponding to a migrated virtual machine VM to a second data center, verifies the network address migration message, and updates home information of the NAT mapping entry in a network address mapping table from the first data center to the second data center according to the network address migration message. In this way, NAT address resources in each data center can be properly planned, and a release attack problem caused by a fact that applying and using of a VM are not performed in a same data center can be solved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.