src/connectivity/network_cfg/dhcpd_conf/dhcpd.sample.conf

subnet 192.168.1.0 netmask 255.255.255.0 {
    range 192.168.1.100 192.168.1.150;
    option routers 192.168.1.1;
    option subnet-mask 255.255.255.0;
    option broadcast-address 192.168.1.255;
    default-lease-time 600;
    max-lease-time 7200;
}