{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-9641485","patent":{"patent_number":"US-9641485","title":"System and method for out-of-band network firewall","assignee":null,"inventors":[],"filing_date":"2015-06-30T00:00:00.000Z","publication_date":"2017-05-02T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L"],"num_claims":20,"abstract":"The present invention is a system and method for an out-of-band network firewall where a firewall, packet-filtering device receives mirrored data packet traffic between a remote host and local host. The out-of-band firewall then will determine if traffic between the remote host and local host should be blocked, and if so then the firewall will send a forged data packet to the remote host and the local host to sever the communication between the hosts. The firewall system may forge a TCP reset packet (RST packet) using the mirrored data packets such that when the TCP reset packet is sent, the hosts will believe that the other respective host is requesting that the connection be reset and terminated. If the firewall receives the mirrored packets from an agent connected to a local host, then the firewall will instruct the agent to block future traffic from the blocked host."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"System and method for out-of-band network firewall","description":"The present invention is a system and method for an out-of-band network firewall where a firewall, packet-filtering device receives mirrored data packet traffic between a remote host and local host. T","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-9641485","license":"CC-BY-4.0-like","license_terms":"AI-generated analysis on this page (summary, layman_explanation, technical_analysis, business_analysis, faqs) may be reused with attribution and a visible link back to the canonical URL above. Patent abstracts, claims, and bibliographic data are USPTO public domain.","required_link":"https://patentable.app/patents/US-9641485","citation_suggestion":"Patentable. \"System and method for out-of-band network firewall\" (US-9641485). https://patentable.app/patents/US-9641485","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-9641485","json":"https://patentable.app/api/llm-context/US-9641485","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-06-06T10:21:10.562Z"}