05757924 is referenced by 169 patents and cites 80 patents.

A network security device is connected between a protected client and a network. The network security device 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. Thus, the client 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 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 translates its MAC address to the client's MAC address before transmitting the packet to the client.

Title
Network security device which performs MAC address translation without affecting the IP address
Application Number
8/529497
Publication Number
5757924
Application Date
September 18, 1995
Publication Date
May 26, 1998
Inventor
Ben Zion Levy
Stony Brook
NY, US
Aharon Friedman
Shoreham
NY, US
Agent
Meltzer Lippe Goldstein et al
Assignee
Digital Secured Networks Techolognies
NY, US
IPC
H04L 9/00
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