1# preferred lifetime 2 3preferred-lifetime 1200; 4 5# embedded in pool 6subnet6 2001::/64 { 7 # silently overwritten 8 preferred-lifetime 1800; 9 pool6 { 10 preferred-lifetime 2400; 11 range6 2001::1000 2001::1fff; 12 } 13} 14 15