Abstract
The challenge to address in multi-firewall and security gateway environment is to implement conflict-free policies, necessary to avoid security inconsistency, and to optimize, at the same time, performances in term of average filtering time, in order to make firewalls stronger against DoS and DDoS attacks. Additionally the approach should be real time, based on the characteristics of network traffic. Our work defines an algorithm to find conflict free optimized device rule sets in real time, by relying on information gathered from traffic analysis. We show results obtained from our test environment demonstrating for computational power savings up to 24% with fully conflict free device policies.KeywordsFirewallData miningnetwork managementsecurity policyoptimization
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