Not sure if this is really a bug, probably works as intended; Same behaviour with wide-dhcpv6-server.
my reason to use dhcp for ipv6 is to update dns zones and provide dns config to clients. With client using autoconfig it gets ips from the range advertised on the router advertisement with /64 mask, no dhcp address is requested, dns server got from ipv4 dhcp (ipv6 dns is also advertised on the ra though) and dns search domain from both ipv6 & ipv4. with dhcpclient the client gets a /128, no dns and no default route, seems that this is the expected behaviour: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1609898 Looking for documentation shows some sources that allow configure prefix length for range statement i.e : https://linux.die.net/man/5/dhcp6s.conf Probably network manager's ipv6.method auto should involve dhcp if available Regards. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1715319 Title: [IPV6] DHCP client gets 128 subnet mask instead of any other that defined To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/isc-dhcp/+bug/1715319/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
