第一步：对R1和R2进行配置
R1(config-if)#int f0/0
R1(config-if)#ip add 12.0.0.1 255.255.255.0
R1(config-if)#no sh
R1(config)#int f0/1
R1(config-if)#ip add 192.168.1.1 255.255.255.0
R1(config-if)#no sh
R1(config)#username admin privilege 15 password admin
R1(config)#line vty 0 4
R1(config-line)#login local
R2(config)#int f0/0
R2(config-if)#ip add 12.0.0.2 255.255.255.0
R2(config-if)#no sh
R2(config)#int f0/1
R2(config-if)#ip add 172.16.1.1 255.255.255.0
R2(config-if)#no sh
R2(config)#username admin privilege 15 password admin
R2(config)#line vty 0 4
R2(config-line)#login local
R1#ping 12.0.0.2
Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 12.0.0.2, timeout is 2 seconds:
.!!!!
Success rate is 80 percent (4/5), round-trip min/avg/max = 31/31/32 ms
第二步：配置动态协议和DHCP
R1(config)#router rip
R1(config-router)#ver 2
R1(config-router)#net 192.168.1.1
R1(config-router)#net 12.0.0.1
R1(config-router)#exi
R1(config-router)#no au
R1(config)#ip dhcp pool PC1
R1(dhcp-config)#net 192.168.1.0 255.255.255.0
R1(dhcp-config)#default-router 192.168.1.1
R1(config)#ip dhcp pool PC2
R1(dhcp-config)#net 172.16.1.0 255.255.255.0
R1(dhcp-config)#default-router 172.16.1.1
R1(config)#ip dhcp excluded-address 192.168.1.1
R1(config)#ip dhcp ex 172.16.1.1
R2(config)#router rip
R2(config-router)#ver 2
R2(config-router)#net 172.16.1.1
R2(config-router)#net 12.0.0.2
R2(config-router)#no au
R2(config-if)#ip help
R2(config-if)#ip helper-address 12.0.0.1
第三步：在pc1 和pc2上查看获得到的地址
第四步：查看ip动态地址池
R1# sh ip dhcp binding
IP address Client-ID/ Lease expiration Type
Hardware address
192.168.1.2 0030.A34D.DB33 -- Automatic
172.16.1.2 0001.63E8.8516 -- Automatic
第五步：测试
来源：oschina
链接：https://my.oschina.net/u/4287583/blog/4670951