This is the part of the dnsmasq.conf that sets up the primary DHCP service.
dhcp-range=lan,192.168.1.20,192.168.1.100,255.255.255.0,86400s
dhcp-option=lan,3,192.168.1.1
dhcp-option=lan,6,8.8.8.8,8.8.4.4,0.0.0.0
dhcp-option=lan,15,meadow.local
dhcp-option=lan,44,192.168.1.1...