option domain-name "example.org";                                                                                                                                                                               
  
default-lease-time 600;
max-lease-time 7200;

log-facility local7;
  
subnet 192.168.1.0 netmask 255.255.255.0 {
    range 192.168.1.101 192.168.1.200;              #要發的 IP 範圍
    option domain-name "ksh_fw.nctucs.net";         #domain name
    option routers 192.168.1.253;                   #router, 因為在這次架構中，會幫忙內網 routing 的是兩台 fw，所以這個要設成兩台 fw 的內網 carp IP
    option broadcast-address 192.168.1.255;
    option domain-name-servers 140.113.17.5, 140.113.1.1;
    default-lease-time 3600;
    max-lease-time 21600;
}

#兩台web拿固定IP
host kshweb1 {                                                                                                                                                                                                  
  hardware ethernet 00:0c:29:66:71:d5;              #拿固定 IP 機器的 mac-address
  fixed-address 192.168.1.1;                        #固定 IP，記得跟上面動態分配的隔開
}
  
host kshweb2 {
  hardware ethernet 00:0c:29:88:27:ad;
  fixed-address 192.168.1.2;
}