1、要求
现有一台DHCP服务器两台PC机给一网段为192.168.2.0/24要求两台PC能够自动获取DHCP服务器分配的IP地址网关为192.168.2.1排除192.168.2.10--------192.168.2.20网段并且让某一台PC绑定192.168.2.20
2、网络拓扑图
3、DHCP的配置和验证
1路由器作为DHCP Server的配置
[Router]dhcp enable
[Router]dhcp server ip-pool net-pool
[Router-dhcpnet-pool]network 192.168.2.0 mask ?
X.X.X.X Network mask
[Router-dhcpnet-pool]network 192.168.2.0 mask 255.255.255.0
[Router-dhcpnet-pool]gateway-list 192.168.2.1 ?
X.X.X.X Router IP address
[Router-dhcpnet-pool]gateway-list 192.168.2.1
[Router-dhcpnet-pool]dns ?
X.X.X.X Server IP address
[Router-dhcpnet-pool]dns 1.1.1.1 ?
X.X.X.X Server IP address
[Router-dhcpnet-pool]dns 1.1.1.1 2.2.2.2
[Router-dhcpftp-pool]static ip-add 192.168.2.20 //绑定IP地址
[Router-dhcpftp-bind]static-bind mac-address 3c-e5-a6-7f-37-4b//绑定MAC
[Router]dhcp server forbidden-ip ?
X.X.X.X Low IP address
[Router]dhcp server forbidden-ip 192.168.2.10 ?
X.X.X.X High IP address
[Router]dhcp server forbidden-ip 192.168.2.10 192.168.2.20 //排除的网段
2、配置PC-A
将本地主机作为PC-A打开本地主机的网络设备点击属性把IP地和DNS改为自动获取如图1所示
图1IP地址设为自动获取
验证本机是否获取到IP地址和DNS点击网络状态再点击详细信息可以看到获取的IP地址和DNS如图2所示
图2IP地址和DNS自动获取的信息
3PC-B的配置
用一台防火墙作为PC-B使其作如下配置
[PC-B]interface Ethernet0/0
[PC-B-Ethernet0/0]ip ad
[PC-B-Ethernet0/0]ip address d
[PC-B-Ethernet0/0]ip address dhcp-alloc
然后查看是否获得IP地址如下所示
Ethernet0/0 current state :UP
Line protocol current state :UP
Description : Ethernet0/0 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is 192.168.2.2/24, acquired via DHCP
查看DNS是否自动获取到
dynamic DNS Server ip address dynamic allocated
Domain-server IpAddress
0 1.1.1.1
1 2.2.2.2
4DHCP的绑定验证
把192.168.2.20绑定给PC-B进行验证如下
PC-B-Ethernet0/0]undo ip address dhcp-alloc
[PC-B-Ethernet0/0]ip address dhcp-alloc
[PC-B-Ethernet0/0]
%Apr 10 12:52:32:998 2014 PC-B IFNET/4/UPDOWN:Line protocol on the interface Ethernet0/0 is UP
[PC-B-Ethernet0/0]dis interface Ethernet0/0
Ethernet0/0 current state :UP
Line protocol current state :UP
Description : Ethernet0/0 Interface
The Maximum Transmit Unit is 1500, Hold timer is 10(sec)
Internet Address is 192.168.2.20/24, acquired via DHCP
