Free IP Geolocation API and Accurate IP Geolocation Database
https://ipgeolocation.ioFree IP Geolocation API and Accurate IP Lookup Database. Free IP API provides country, city, state, province, local currency, latitude and longitude, company detail, ISP lookup, language, zip code, country calling code, time zone, current time, sunset and sunrise time, moonset and moonrise time from any IPv4 and IPv6 address in REST, JSON and XML format over HTTPS.
Configuring an IPv6 Token - Oracle
docs.oracle.com › cd › E19253-01The 64-bit interface ID of an IPv6 address is also referred to as a token, as introduced in IPv6 Addressing Overview. During address autoconfiguration, the token is associated with the interface's MAC address. In most cases, nonrouting nodes, that is IPv6 hosts and servers, should use their autoconfigured tokens.