Network security device which performs MAC address translation without affecting the IP address
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 26, 1998
Grant Date -
N/A
app pub date -
Sep 18, 1995
filing date -
Sep 18, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
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.
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