option domain-name "ourisp"; 
  option domain-name-servers 8.8.8.8; 
  default-lease-time 3600; 
  max-lease-time 43200; 
  authoritative; 
  ddns-update-style none; 
  log-facility local7; 
  one-lease-per-client true; 
  deny duplicates;  
  
  shared-network ourisp {
  subnet 172.30.0.0 netmask 255.255.240.0 { 
  default-lease-time 3600; 
  option domain-name "ourisp"; 
  option subnet-mask 255.255.240.0; 
  option routers 172.30.0.1; 
  include "/usr/local/etc/multinet/ournet.conf"; 
  } 
  }