ddns-update-style ad-hoc; subnet 10.0.0.0 netmask 255.255.255.0 { option subnet-mask 255.255.255.0; option broadcast-address 10.0.0.255; option routers 192.168.2.1; option domain-name-servers 192.168.2.1; range dynamic-bootp 10.0.0.50 10.0.0.60; default-lease-time 21600; max-lease-time 43200; }