Firewall for processing a connectionless network packet

Details Firewall for processing a connectionless network packet Firewall for processing a connectionless network packet

2006-07-04

2006-07-04

Revak, Christopher (Department: 2131)

Information security

Access control or authentication

Network

C370S395520, C726S004000, C709S223000

Reexamination Certificate

active

07073196

ABSTRACT:
The present invention is a device for and method of accessing a network by initializing a database, an approved list, and a disapproved list; receiving an connectionless network packet; computing a flow tag based on the connectionless network packet; discarding the connectionless network packet and returning to the second step if the flow tag is on the disapproved list; allowing access to the network and returning to the second step if the flow tag is on the approved list; comparing the flow tag to the database if the flow tag is not on the approved list or the disapproved list; discarding the connectionless network packet, adding the flow tag to the disapproved list, and returning to the second step if the database rejects the flow tag; and allowing access to the network, adding the flow tag to the approved list, and returning to the second step if the database accepts the flow tag.

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