Don't block indefinitely, when control has been passed on from NDisc to DHCPv6.
In this case there is likely no IPv6 support on the local link, so otherwise
this would block indefinitely.
r = sd_dhcp6_client_start(link->dhcp6_client);
if (r < 0 && r != -EALREADY)
log_link_warning_errno(link, r, "Starting DHCPv6 client after NDisc timeout failed: %m");
+
+ link->ndisc_configured = true;
+ link_check_ready(link);
+
break;
case SD_NDISC_EVENT_STOP:
break;