拓扑如下：

R0配置：

(config)#ip dhcp pool aaa(dhcp-config)#network 8.8.8.0 255.255.255.0(dhcp-config)#default-router 8.8.8.1(dhcp-config)#dns-server 114.114.114.114(config)#ip dhcp pool bbb(dhcp-config)#network 88.88.88.0 255.255.255.0(dhcp-config)#default-router 88.88.88.1(dhcp-config)#dns-server 114.114.114.114(config)#ip dhcp excluded-address 8.8.8.1 8.8.8.100(config)#ip dhcp excluded-address 88.88.88.1 88.88.88.100(config)#interface GigabitEthernet0/0(config-if)#ip address 192.168.1.1 255.255.255.0(config)#router eigrp 100(config-router)#network 8.0.0.0(config-router)#network 192.168.1.0(config-router)#network 88.0.0.0

R1配置：

(config)#interface GigabitEthernet0/0(config-if)#ip address 192.168.1.2 255.255.255.0(config)#interface GigabitEthernet0/1(config-if)#ip address 8.8.8.1 255.255.255.0(config-if)#ip helper-address 192.168.1.1(config)#interface GigabitEthernet0/2(config-if)#ip address 88.88.88.1 255.255.255.0(config-if)#ip helper-address 192.168.1.1(config)#router eigrp 100(config-router)#network 8.0.0.0(config-router)#network 192.168.1.0(config-router)#network 88.0.0.0

PC可获取IP