Appeal No. 1999-2380
Application No. 08/575,743 Page 2
1. A method for determining the trust worthiness of
executable packets in a computer network having a plurality of
secured computers and a plurality of unsecured computers, each
executable packet having a source address and a destination
address, said method comprising the steps of:
a) determining within a first degree of certainty whether a
source address of one said executable packet is associated with
anyone of said plurality of secured computers,said source address
is not associated with anyone of said plurality of secured
computers, or association of said source address with anyone of
said plurality of secured computers is uncertain; and
b) determining within a second degree of certainty whether a
destination address of said one executable packet is associated
with anyone of said plurality of secured computers, said
destination address is not associated with anyone of said
plurality of secured computers, or association of said
destination address with anyone of said plurality of secured
computers is uncertain.
15. An intelligent firewall useful in association with a
computer network having a plurality of secured computers and a
plurality of unsecured computers, the firewall comprising:
a source address verifier configured to determine within a
first degree of certainty whether a source address of an
executable packet is associated with anyone of said plurality of
secured computers, said source address is not associated with
anyone of said plurality of secured computers, or association of
said source address with anyone of said plurality of secured
computers is uncertain.
17. An intelligent firewall useful in association with a
computer network having a plurality of secured computers and a
plurality of unsecured computers, the firewall comprising:
a destination address verifier configured to determine
within a degree of certainty whether a destination address of an
executable packet is associated with anyone of said plurality of
secured computers, said destination address is not associated
with anyone of said plurality of secured computers, or
association of said destination address with anyone of said
plurality of secured computers is uncertain.
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