06151679 is referenced by 51 patents and cites 81 patents.

A network security device 10 is connected between a protected client 12 and a network 100. The network security device 10 negotiates a session key with any other protected client. Then, all communications between the two clients are encrypted. The inventive device is self-configuring and locks itself to the IP address of its client 12. Thus, the client 12 cannot change its IP address once set and therefore cannot emulate the IP address of another client. When a packet is transmitted from the protected host, the security device 10 translates the MAC address of the client to its own MAC address before transmitting the packet into the network. Packets addressed to the host, contain the MAC address of the security device. The security device 10 translates its MAC address to the client's 12 MAC address before transmitting the packet to the client 12.

Title
System and method for preventing a first node from being emulated by another node
Application Number
529497
Publication Number
6151679
Application Date
January 21, 1998
Publication Date
November 21, 2000
Inventor
Ben Zion Levy
Stony Brook
NY, US
Aharon Friedman
Shoreham
NY, US
Agent
Proskauer Rose
Assignee
Fortress Technologies of Florida
FL, US
IPC
G06F 15/16
H04L 9/00
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