ddns-update-style none;
authoritative;
default-lease-time         10800;
max-lease-time             10800;


shared-network wimax {

        subnet xx.xx.xx.0 netmask 255.255.255.0 {
        }

        subnet yy.yy.yy.0 netmask 255.255.248.0 {

         # --- default gateway
                option routers                  y.y.y.y;
                option subnet-mask              255.255.248.0;

                option domain-name              "example";
                option domain-name-servers      y.y.y.y;

                option time-offset              -18000; # Eastern Standard Time
                #option interface-mtu    1440;
                range  y.y.y.y y.y.y.y;
                default-lease-time         10800;
                max-lease-time             10800;

                ping-check true;


        }       
                
	other Subnets.................
	....................        

}

host reservation
>>>>>>>