[ipv6-dhcp] =========== Overview ipv6 DHCP section. **verbose=0|1** By default is disabled. Specified will ipv6-dhcp module produce verbose logging. **pref-lifetime=n** By default ``pref-lifetime=604800`` Specifies preferred liftime in seconds to be sent to DHCPv6 client. **valid-lifetime=n** By default ``valid-liftime=2592000`` Specifies valid lifetime in seconds to be sent to DHCPv6 client. **route-via-gw=0|1** By default ``route-via-gw=1`` Specifies if delegated prefix routes should use gateway. **server-id=a:b:c:d** By default ``server-id=0:0:0:1`` Specifies the DHCPv6 server-id. Each value a, b, c, d is hex value in range 0000 to ffff