实验需求

1. 按照图示配置IP地址
2. 配置R1为DHCP服务器，能够跨网段为192.168.2.0/24网段自动分配IP地址。要求分配DNS地址为202.103.24.68和202.103.0.117
3. PC3获取IP地址后，能够访问到192.168.1.1

实验步骤

1.配置R1路由器

[R1]int g0/0
[R1-GigabitEthernet0/0]ip add 192.168.2.1 24  
[R1-GigabitEthernet0/0]qu

[R1]ip route-static 0.0.0.0 0 192.168.2.254   //配置静态路由

[R1]dhcp enable 

[R1]dhcp server ip-pool 1

[R1-dhcp-pool-1]network 192.168.1.0 mask 255.255.255.0

[R1-dhcp-pool-1]gateway-list 192.168.1.254

2.配置R2路由器

[R2]int g0/0
[R2-GigabitEthernet0/0]ip add 192.168.2.254 24
[R2-GigabitEthernet0/0]int g0/1
[R2-GigabitEthernet0/1]ip add 192.168.1.254 24

[R2-GigabitEthernet0/1]qu

[R2]dhcp enable 

[R2]int g0/1

[R2-GigabitEthernet0/1]dhcp select relay //开启dhcp中继功能

[R2-GigabitEthernet0/1]dhcp relay server-address 192.168.2.1 //dhcp服务器地址

3.电脑自动获取  ping 192.168.2.1