将今天测试的DHCP代码,拿出来供参阅.

ddns-update-style interim;
ignore client-updates; #以上两个参数作为全局参数

subnet 192.168.1.0 netmask 255.255.255.0 { #定义作用域,既一个IP子网段
        range dynamic-bootp 192.168.1.10 192.168.1.254; #ip地址范围
# --- default gateway
        option routers                  192.168.1.1;   #DHCP客户端ip网关选项
        option subnet-mask              255.255.255.0; #DHCP客户端ip子网掩码选项
       
#       option nis-domain               "domain.org";
#       option domain-name             "domain.org";
        option domain-name-servers      202.102.200.101,202.102.192.68; #DHCP客户端DNS选项
        option broadcast-address        192.168.1.255;  #广播地址

#        option time-offset              -18000; # Eastern Standard Time
#       option ntp-servers              192.168.1.1;
#       option netbios-name-servers     192.168.1.1;
# --- Selects point-to-point node (default is hybrid). Don't change this unless
# -- you understand Netbios very well
#       option netbios-node-type 2;

      
        default-lease-time 21600;
        max-lease-time 43200;  #以上两个选项为Dhcp租用期限

        # we want the nameserver to appear at a fixed address
        host ns1 {              #定义保留地址
                hardware ethernet 12:34:56:78:AB:CD;
                fixed-address 192.168.1.99;
        }
        host ns2 {
                hardware ethernet 00:14:78:bf:92:34;
                fixed-address 192.168.1.121;
        }
}

#注意,请保证你的DHCP服务器,与IP作用域处于同一网段,本例是在192.168.1.0/24这个网段上写的.