Method of virtual private network communication in security...

Details Method of virtual private network communication in security... Method of virtual private network communication in security...

2006-04-11

2006-04-11

Morse, Gregory (Department: 2134)

Information security

Access control or authentication

Network

Reexamination Certificate

active

07028337

ABSTRACT:
A method of the Virtual Private Network (VPN) communication employed for a security gateway apparatus and the security gateway apparatus using the same, which allow a personal computer outside a local area network (LAN) to access, via a WAN, to a terminal on the LAN, virtually regarding the outside PC as a terminal on the LAN. The communication method is employed for a security gateway apparatus to connect, through concentration and conversion process, between a LAN and a WAN including a public network. Security Architecture for the Internet Protocol (IPsec) establishes VPN with an outside PC having a dialup connection to the WAN. During an Internet Key Exchange (IKE) communication that is performed prior to the IPsec communication, the security gateway apparatus integrates a Dynamic Host Configuration Protocol (DHCP) communication option into an IKE data, and designates the IP address of the outside PC from a tunneled IP packet.

REFERENCES:
patent: 6615357 (2003-09-01), Boden et al.
patent: 6751729 (2004-06-01), Giniger et al.
patent: 6779004 (2004-08-01), Zintel

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