Apparatus and method for providing remote users with the same unique IP address upon each network access

Patent 5598536 Issued on January 28, 1997. Estimated Expiration Date:

August 9, 2014. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Network address management for a wired network supporting wireless communication to a plurality of mobile users
Patent #: 5159592
Issued on: 10/27/1992
Inventor: Perkins

Security method for private information delivery and filtering in public networks
Patent #: 5245656
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Inventor: Loeb, et al.

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Patent #: 5309437
Issued on: 05/03/1994
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Method and apparatus for key-management scheme for use with internet protocols at site firewalls
Patent #: 5416842
Issued on: 05/16/1995
Inventor: Aziz

Shortcut network layer routing for mobile hosts Patent #: 5442633
Issued on: 08/15/1995
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Inventors

Assignee

Shiva Corporation

Application

No. 287775 filed on 08/09/1994

US Classes:

709/219, Accessing a remote server379/93.02, Access restricting709/220, NETWORK COMPUTER CONFIGURING709/228Session/connection parameter setting

Examiners

Primary: Lim, Krisna

Attorney, Agent or Firm

Fish & Richardson, P.C.

Foreign Patent References

0483547 EP. 02/12/1992

International Class

H04J 003/02

Abstract

A remote access server provides a remote user with access to a local computer network. The server receives a user identification string from its communication port, the string having been entered by the remote user at a remote computer which is coupled to the communication port. The string identifies the remote user. The server uses the string to access a database and determine an internet protocol (IP) address associated with the string. The remote computer needs the IP address to communicate on the local computer network. The database includes a user identification string for each remote user and an IP address for each string. The remote access server sends the IP address to the remote computer via the communication port. The server then allows the remote computer to access the local computer network and to communicate on the local computer network using the IP address.