File dhclient6.conf of Package dhcp

# Client configuration file example for DHCPv6

# The client side command to enable rapid-commit (2 packet exchange)
send dhcp6.rapid-commit;

# The name-servers and domain-search are requested by default.
#
# We request also sntp-servers, see dhcp-options(5) for more,
# but make sure, the underlying software using it supports IPv6
# (e.g. ypbind <= 1.35 doesn't, don't add nis-servers/domain!)
#
also request dhcp6.sntp-servers;