On 1/6/19 9:23 PM, Rainer Dorsch wrot> Isn't the /64 the prefix length and longer prefixes than 64 are not supported in > ipv6? > For IPv6 there are two methods for IP address distribution - Router Advertisement and DHCPv6. Router Advertisement doesn't support prefixes longer than /64. On the other hand Android doesn't support DHCPv6. Kind regards Georgi