DHCP综合实战

DHCP综合实战
6.1 问题
在复杂的网络环境中，如何配置DHCP服务器？

6.2 方案
使用eNSP搭建实验环境，如图-14所示。

图-14

6.3 步骤
实现此案例需要按照如下步骤进行。

1）配置sw1
[sw1]vlan batch 10 20
[sw1]int e0/0/1
[sw1-e0/0/1]port link-type access
[sw1-e0/0/1]port default vlan 10
[sw1]int e0/0/2
[sw1-e0/0/2]port link-type access
[sw1-e0/0/2]port default vlan 20
[sw1]int e0/0/3
[sw1-e0/0/3]port link-type trunk
[sw1-e0/0/3]port trunk allow-pass vlan all

2）配置r1
[r1]dhcp enable
[r1]ip pool p1
[r1-ip-pool-p1]network 192.168.10.0 mask 24
[r1-ip-pool-p1]gateway-list 192.168.10.254
[r1]ip pool p2
[r1-ip-pool-p2]network 192.168.20.0 mask 24
[r1-ip-pool-p2]gateway-list 192.168.20.254
[r1]ip pool p3
[r1-ip-pool-p3]network 192.168.30.0 mask 24
[r1-ip-pool-p3]gateway-list 192.168.30.254

[r1]int g0/0/0.1
[r1-g0/0/0.1]dot1q termination vid 10
[r1-g0/0/0.1]ip address 192.168.10.254 24
[r1-g0/0/0.1]arp broadcast enable
[r1-g0/0/0.1]dhcp select global
[r1]int g0/0/0.2
[r1-g0/0/0.2]dot1q termination vid 20
[r1-g0/0/0.2]ip address 192.168.20.254 24
[r1-g0/0/0.2]arp broadcast enable
[r1-g0/0/0.2]dhcp select global
[r1]int g0/0/1
[r1-g0/0/1]ip address 192.168.1.1 24
[r1-g0/0/1]dhcp select global

[r1]ip route-static 0.0.0.0 0.0.0.0 192.168.1.2

3）配置r2
[r2]int g0/0/0
[r2-g0/0/0]ip address 192.168.1.2 24
[r2]int g0/0/1
[r2-g0/0/1]ip address 192.168.2.1 24

[r2]ip route-static 192.168.10.0 24 192.168.1.1
[r2]ip route-static 192.168.20.0 24 192.168.1.1
[r2]ip route-static 192.168.30.0 24 192.168.2.2

4）配置sw2
[sw2]vlan batch 30
[sw2]int vlan 30
[sw2-Vlanif30]ip add 192.168.30.254 24
[sw2-Vlanif30]int vlan 1
[sw2-Vlanif1]ip add 192.168.2.2 24

[sw2]int g0/0/1
[sw2-GigabitEthernet0/0/1]port link-type access
[sw2-GigabitEthernet0/0/1]port default vlan 1
[sw2-GigabitEthernet0/0/1]int g0/0/2
[sw2-GigabitEthernet0/0/2]port link-type trunk
[sw2-GigabitEthernet0/0/2]port trunk allow-pass vlan all

[sw2]dhcp enable
[sw2]int g0/0/2
[sw2-GigabitEthernet0/0/2]dhcp select relay
[sw2-GigabitEthernet0/0/2]dhcp relay server-ip 192.168.1.1

[sw2]ip route-static 0.0.0.0 0.0.0.0 192.168.2.1

5）配置sw3
[sw3]vlan 30
[sw3]int e0/0/1
[sw3-e0/0/1]port link-type access
[sw3-e0/0/1]port default vlan 30
[sw3]int e0/0/2
[sw3-e0/0/2]port link-type access
[sw3-e0/0/2]port default vlan 30

6）配置DHCP,如图，pc1、pc2、pc3、pc4也是如下面图配置

7）测试结果如图pc1

pc3

其他pc均可测试