{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-11509686","patent":{"patent_number":"US-11509686","title":"DHCP-communications monitoring by a network controller in software defined network environments","assignee":null,"inventors":[],"filing_date":"2019-06-17T00:00:00.000Z","publication_date":"2022-11-22T00:00:00.000Z","cpc_codes":["H04L","G06F","H04L","H04L","H04L","H04L","G06F"],"num_claims":20,"abstract":"In an embodiment, a computer-implemented method for DHCP-communications monitoring by a network controller in software defined networks is disclosed. A method comprises detecting that a virtualized compute instance is instantiated on a host computer; generating, and transmitting to a port manager executing on the host computer, instructions to set a BLOCK-EXCEPT-DHCP status on a port assigned to the virtualized compute instance; determining whether an IP address has been assigned to the port by a DHCP service; and if it has: generating, and transmitting to the port manager, instructions to set a NORMAL status on the port; generating, and transmitting to the port manager, a SpoofGuard configured with the IP address assigned to the port; based on notifications received from the SpoofGuard, determining whether the IP address assigned to the port of the virtualized compute instance has been misused, expired or spoofed; and if it has, transmitting instructions to set the BLOCK-EXCEPT-DHCP status on the port."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"DHCP-communications monitoring by a network controller in software defined network environments","description":"In an embodiment, a computer-implemented method for DHCP-communications monitoring by a network controller in software defined networks is disclosed. A method comprises detecting that a virtualized co","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-11509686","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-11509686","citation_suggestion":"Patentable. \"DHCP-communications monitoring by a network controller in software defined network environments\" (US-11509686). https://patentable.app/patents/US-11509686","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-11509686","json":"https://patentable.app/api/llm-context/US-11509686","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-30T21:46:08.153Z"}