FreeBSD dhcpd.conf

# option definitions common to all supported networks...
option domain-name "localnet.tld";
option subnet-mask 255.255.255.224;
default-lease-time 600;
max-lease-time 7200;

subnet 192.168.43.0 netmask 255.255.255.224 {
  range 192.168.43.10 192.168.43.30;
  option domain-name-servers 192.168.43.2;
  option domain-name "localhost.tld";
  option routers 192.168.43.1;
  option subnet-mask 255.255.255.224;
  option broadcast-address 192.168.43.31;
  default-lease-time 600;
  max-lease-time 7200;
}

host ea6350 {
  hardware ethernet 4A:FB:B3:FC:7D:40;
  fixed-address 192.168.43.2;
}