05699513 is referenced by 232 patents and cites 8 patents.

Security is provided for an inside network (14) by a security host (26). Connection request messages sent from source hosts (22) in an outside network (12) are intercepted (94) in the security host (26) and prevented from being transmitted on the inside network (14). The user of the source host (22) then establishes a connection (78) to the security host (26) where a dialog session (80, 98, 100) occurs to confirm the user's authenticity and authorization. After the user is confirmed, the intercepted connection request message is released (116) for transmission on the inside network (14) where the intended application service will respond and a communication session will commence.

Title
Method for secure network access via message intercept
Application Number
8/414823
Publication Number
5699513
Application Date
March 31, 1995
Publication Date
December 16, 1997
Inventor
Paul Aerick Lambert
Scottsdale
AZ, US
Ronald Glen Feigen
Mesa
AZ, US
Agent
Bradley J Botsch Sr
Jeffrey D Nehr
Assignee
Motorola
IL, US
IPC
G06F 11/00
View Original Source