User authentication system and user authentication method

Details User authentication system and user authentication method User authentication system and user authentication method

2003-07-09

2008-10-14

Kincaid, Kristine (Department: 2139)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Packet header designating cryptographically protected data

C713S154000, C713S170000, C713S180000, C726S001000, C726S002000, C726S003000, C726S004000, C726S006000, C726S012000, C726S013000, C726S014000, C709S220000, C709S223000, C709S224000, C709S226000, C709S227000, C709S230000

Reexamination Certificate

active

07437552

ABSTRACT:
A subscriber's terminal201is configured to be connected to an internet service provided208via a LAN202,and an IP subnet distribution switch209within a network service provider203.When a packet signal that has not received the authentication is input, a physical-port changeover switch204gives a temporary IP address to the subscriber's terminal201,and causes the subscriber's terminal201to employ this for making an authentication process. If the authentication succeeds, a normal IP address is given, and the packet signal, which made use of this, is distributed to a network that is an object by the IP subnet distribution switch209.

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patent: 10-173691 (1998-06-01), None
patent: 2002-26954 (2002-01-01), None
patent: 2002-152276 (2002-05-01), None

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