實驗名稱:簡單的DHCP 分配,加子網劃分實驗
實驗拓撲:
實驗要求:
給定了192.168.100.0/24 網段, 劃分位4個子網,分配給vlan 10~40。
所有pc機都能獲取到ip地址、網關、dns地址。租期爲3天。
實驗步驟:
1、
計算子網,將192.168.100.0/24 劃分爲4個網段,分別爲:
網段:192.168.100.0/26 網關: 192.168.100.62
網段: 192.168.100.64/26 網關: 192.168.100.126
網段: 192.168.100.128/26 網關: 192.168.100.190
網段: 192.168.100.192/26 網關: 192.168.100.254
子網掩碼爲:255.255.255.192
2、
#配置交換機SW1 :
vlan batch 10 20 30 40
interface e0/0/1
port link-type access
port de vlan 10
interface e0/0/2
port link-type access
port de vlan 20
interface e0/0/3
port link-type access
port de vlan 30
interface e0/0/4
port link-type access
port de vlan 40
interface g0/0/1
port link-type trunk
port trunk a vlan 10 20 30 40
3、
#配置交換機sw2(與sw1配置完全相同)
vlan batch 10 20 30 40
interface e0/0/1
port link-type access
port de vlan 10
interface e0/0/2
port link-type access
port de vlan 20
interface e0/0/3
port link-type access
port de vlan 30
interface e0/0/4
port link-type access
port de vlan 40
interface g0/0/1
port link-type trunk
port trunk a vlan 10 20 30 40
4、
#配置作爲DHCP服務器的SW3 :
vlan batch 10 20 30 40
dhcp enable /開啓DHCP服務
ip pool vlan-10
network 192.168.100.0 mask 255.255.255.192
gateway-list 192.168.100.62
dns-list 8.8.8.8
lease day 3
ip pool vlan-20
network 192.168.100.64 mask 255.255.255.192
gateway-list 192.168.100.126
dns-list 8.8.8.8
lease day 3
ip pool vlan-30
network 192.168.100.128 mask 255.255.255.192
gateway-list 192.168.190.126
dns-list 8.8.8.8
lease day 3
ip pool vlan-40
network 192.168.100.192 mask 255.255.255.192
gateway-list 192.168.100.254
dns-list 8.8.8.8
lease day 3 /配置4個vlan 網段的地址池
interface vlan 10
ip address 192.168.100.62 255.255.255.192
dhcp select global
interface vlan 20
ip address 192.168.100.126 255.255.255.192
dhcp select global
interface vlan 30
ip address 192.168.100.190 255.255.255.192
dhcp select global
interface vlan 40
ip address 192.168.100.254 255.255.255.192
dhcp select global /配置4個網關,並指定dhcp服務器
port-group 1
group-member g0/0/1 g0/0/2
port link-type trunk
port trunk a vlan 10 20 30 40 /配置連接sw1和sw2的端口
驗證:
獲取到了IP
![](http://i2.51cto.com/images/blog/201812/03/8e76a6f6975c17369e087859f830ef27.png?x-oss-process=image/watermark,size_16,text_QDUxQ1RP5Y2a5a6i,color_FFFFFF,t_100,g_se,x_10,y_10,shadow_90,type_ZmFuZ3poZW5naGVpdGk=)