Patent · US Expired

Pre-processing of NAT addresses

US7426208B2 · kind B2 · utility

0Cited by

4References

3Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Karl Klaghofer · Munich, DE
Harald Müller · Gilching, DE
Jurgen Totzke · Poing, DE
Gerald Volkmann · Birkenfeld, DE

Key dates

Filing date	Aug 1, 2002
Grant date	Sep 16, 2008
Priority date	—
Expiry date	Oct 5, 2024

Classification

Technology area (CPC H)Electricity
CPC primaryH04L61/2575
WIPO fieldDigital communication
WIPO sectorElectrical engineering

Abstract

A method for packet-oriented transmission of speech, audio, video and/or useful data between an internal and a public data network by means of a pre-reservation of NAT addresses. A pre-NAT address is allocated to the IP address of an internal computer by an NAT address server. The relevant allocation data set is available in a NAT host 200 which acts as a gateway between the internal and the public data network; whereby single addresses (pre-NAT addresses) are provided for transparent use of the data packet in the internal and public network when the information on the origin or destination in an IP Header or in the protocol data, in addition to the information on origin or destination in said header, is modi.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.