{"schema_version":"1.0","canonical_url":"https://patentable.app/patents/US-8477804","patent":{"patent_number":"US-8477804","title":"ICMP translator","assignee":null,"inventors":[],"filing_date":"2007-09-18T00:00:00.000Z","publication_date":"2013-07-02T00:00:00.000Z","cpc_codes":["H04L","H04L","H04L","H04L","H04L"],"num_claims":11,"abstract":"When an IPv4/v6 dual stack terminal communicating via TCP on IPv6 fails to promptly switch over to IPv4 after the ICMPv6 fails due to a soft error, the problem should be resolved at the prior stage server rather than on the complicated terminal. The server at a stage prior to the terminal receives TCP packets from the terminal to find the TCP connection status on the terminal. When the terminal connection status is SYN-SENT or SYN-RECEIVED, and the server receives an unaddressed soft error such as ICMPv6 “Destination Unreachable: no route to destination (ICMP type=1: code 0)” for that terminal, the server rewrites the ICMPv6 contents as a hard error such as “Destination Unreachable: communication with destination administratively prohibited (ICMP type=1: code 1)” and sends it the terminal."},"analysis":{"summary":null,"layman_explanation":null,"technical_analysis":null,"business_analysis":null,"faqs":null,"topics":[],"tech_cluster":null},"seo":{"title":"ICMP translator","description":"When an IPv4/v6 dual stack terminal communicating via TCP on IPv6 fails to promptly switch over to IPv4 after the ICMPv6 fails due to a soft error, the problem should be resolved at the prior stage se","keywords":[]},"attribution":{"source":"Patentable","source_url":"https://patentable.app","canonical_url":"https://patentable.app/patents/US-8477804","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-8477804","citation_suggestion":"Patentable. \"ICMP translator\" (US-8477804). https://patentable.app/patents/US-8477804","copyright_holder":"Nomic Interactive Technology LLC"},"links":{"html":"https://patentable.app/patents/US-8477804","json":"https://patentable.app/api/llm-context/US-8477804","site":"https://patentable.app","llms_txt":"https://patentable.app/llms.txt"},"generated_at":"2026-05-31T21:56:00.607Z"}