为了简化客户端的TCP/IP属性配置,管理员在一台网关路由器上配置DHCP服务器。客户端所在网段为172.16.100.0/24,并且该网段中有两台工作组服务器,IP地址分别为172.16.100.1和172.16.100.2。路由器的IP地址为172.16.100.254。以下关于DHCP服务的配置脚本,正确的是( )
A.
enable config t ip dhcp pool dhcp-pool network 172.16.100.0 255.255.255.0 lease 1 1 30 default-router 172.16.100.254 dns-server 8.8.8.8 exit ip dhcp excluded-address 172.16.100.1 172.16.100.2 ip dhcp excluded-address 172.16.100.254 end write
B.
enable config t ip dhcp pool dhcp-pool network 172.16.100.0 255.255.255.0 ip dhcp excluded-address 172.16.100.1 172.16.100.2 ip dhcp excluded-address 172.16.100.254 lease 1 1 30 default-router 172.16.100.254 dns-server 8.8.8.8 exit end write
C.
enable config t ip dhcp pool dhcp-pool network 172.16.100.3 172.16.100.253 netmask 255.255.255.0 lease 1 1 30 default-router 172.16.100.254 dns-server 8.8.8.8 exit end write
D.
enable config t ip dhcp pool dhcp-pool network 172.16.100.0 255.255.255.0 lease 1 1 30 exit ip dhcp excluded-address 172.16.100.1 172.16.100.2 ip dhcp excluded-address 172.16.100.254 default-router 172.16.100.254 dns-server 8.8.8.8 end write