US 2003/0233576 A1 · Detection of support for security protocol and address translation integration

Abstract

Method and apparatus for integration of network address translation and source address security, including, but not limited to, determining whether a gateway computer is integrated for network address translation and source address security, is described. A client computer requests a first address from the gateway computer and then requests a second address from the gateway computer. The latter request is done with a different client identifier that is nearly equivalent, except for one bit, to the client identifier used for the prior address request. If the gateway computer is integrated for network address translation and source address security, in response to the latter request a public address will be provided from the gateway computer to the client computer.

Claims21

Dependent claims

A method for network address translation for source address protected packets, comprising:

providing a client computer;
providing an address server computer in communication with the client computer;
first requesting from the client computer for a first address from the address server computer, the client computer identifiable by the address server computer by a medium access control number;
providing by the address server computer to the client computer a private address in response to the first request;
generating an alteration of the medium access control number by the client computer to provide an altered medium access control number;
second requesting from the client computer for a second address from the address server, the client computer identifiable by the address server computer by the altered medium access control number;
associating by the address server computer the client computer with the first request and the second request by relating the medium access control number with the altered medium access control number;
and
providing by the address server computer to the client computer a public address in response to the second request.

6 more elements

Dependencies are inferred from the claim text.

Detection of support for security protocol and address translation integration

Life of this patent

Detection of support for security protocol and address translation integration

Life of this patent

Abstract

Claims21