图23.4IANA范围 Registered 0 1023 49,152 65,535 HH 1024 49,151 Well known Dynamic IANA(Internet Assigned Number Authority 因特网号码分配管理局 23.723.7 图 23.4 IANA 范围 IANA(Internet Assigned Number Authority ) 因特网号码分配管理局