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Unlike in IPv4, in IPv6 there is a lower risk of nodes assigning the same IPv6 address if there's no central DHCP. This is because IPv6 uses a unique interface
by screamingninja 4y ago
Unlike in IPv4, in IPv6 there is a lower risk of nodes assigning the same IPv6 address if there's no central DHCP. This is because IPv6 uses a unique interface identifier (IID) that is automatically generated by the node based on its MAC address and a random value. This makes it highly unlikely that two nodes on the same network would generate the same IID and therefore, the same IPv6 address.
- CaliforniaKarl 4y agoFor some time now, it's not unusual for systems to have multiple, publicly-routable IPv6 IPs. Right now my macOS system has four randomly-generated IPv6 IPs, which are being used for internet traffic. New IPs are generated regularly, and old ones eventually get removed. And thanks to Duplicate Address Detection, before a new randomly-generated IP is used, a check is made to ensure it is not in use by someone else.