Firewall access control method of object-orientation mode
An access control and object-oriented technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve problems such as system congestion, firewall performance degradation, and system resource occupation, and achieve the effect of reducing the number and avoiding repeated calls
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[0056] to combine figure 1 Shown data structure and interrelationship, the firewall access control of described object-oriented mode is realized like this:
[0057] The first step is to classify the access control objects of the firewall.
[0058] Define each object to be controlled by the firewall, including source address, destination address, protocol and port number that constitute a certain service, time, etc. including,
[0059] (1), address class definition structure:
[0060] Type (mask_type), used to identify whether the following address is ip-ip or ip / mask structure;
[0061] reserved bit (reserve);
[0062] User group ID (group_id);
[0063] IP address, expressed as a single IP address (ip-ip), or a network segment (ip / mask);
[0064] (2), service class definition structure:
[0065] service group ID (ser_id);
[0066] Protocol content (protocol);
[0067] source port number (scount);
[0068] Destination port number (dcount);
[0069] source port (sport...
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