拓扑图
<Huawei>system-view
[Huawei]sysname SW1
[SW1]vlan batch 10 20
[SW1]int e0/0/1 #配置access接口
[SW1-Ethernet0/0/1]port link-type access
[SW1-Ethernet0/0/1]port default vlan 10
[SW1-Ethernet0/0/1]undo shut
[SW1-Ethernet0/0/1]q
[SW1]int e0/0/2 #配置access接口
[SW1-Ethernet0/0/2]port link-type access
[SW1-Ethernet0/0/2]port default vlan 20
[SW1-Ethernet0/0/2]undo shutdown
[SW1-Ethernet0/0/2]int e0/0/3 #配置access接口
[SW1-Ethernet0/0/3]port link-type access
[SW1-Ethernet0/0/3]port default vlan 10
[SW1-Ethernet0/0/3]undo shutdown
[SW1-Ethernet0/0/3]q
[SW1]int e0/0/4 #配置access接口
[SW1-Ethernet0/0/4]port link-type access
[SW1-Ethernet0/0/4]port default vlan 20
[SW1-Ethernet0/0/4]undo shutdown
[SW1-Ethernet0/0/4]q
[SW1]int g0/0/1 #配置trunk接口
[SW1-GigabitEthernet0/0/1]port link-type trunk
[SW1-GigabitEthernet0/0/1]port trunk allow-pass vlan all
[SW1-GigabitEthernet0/0/1]undo shutdown
<Huawei>system-view
[Huawei]sysname R1
#开启dhcp功能
[R1]dhcp enable
#配置第一个虚拟子接口1.1
[R1]int g0/0/1.1
#选择封装类型及vlan
[R1-GigabitEthernet0/0/1.1]dot1q termination vid 10
#开启arp广播功能
[R1-GigabitEthernet0/0/1.1]arp broadcast enable
#配置IP地址
[R1-GigabitEthernet0/0/1.1]ip add 192.168.10.1 24
#指向DHCP服务器
[R1-GigabitEthernet0/0/1.1]dhcp select relay
[R1-GigabitEthernet0/0/1.1]dhcp relay server-ip 14.0.0.2
[R1-GigabitEthernet0/0/1.1]undo shutdown
[R1-GigabitEthernet0/0/1.1]q
#同理配置第二个虚拟接口1.2
[R1]int g0/0/1.2
[R1-GigabitEthernet0/0/1.2]dot1q termination vid 20
[R1-GigabitEthernet0/0/1.2]arp broadcast enable
[R1-GigabitEthernet0/0/1.2]ip add 192.168.20.1 24
[R1-GigabitEthernet0/0/1.2]dhcp select relay
[R1-GigabitEthernet0/0/1.2]dhcp relay server-ip 14.0.0.2
[R1-GigabitEthernet0/0/1.2]q
#配置IP地址即可
[R1]int g0/0/3
[R1-GigabitEthernet0/0/3]ip add 14.0.0.1 24
[R1-GigabitEthernet0/0/3]undo shutdown
[R1-GigabitEthernet0/0/3]q
#配置IP地址即可
[R1]int g0/0/2
[R1-GigabitEthernet0/0/2]ip add 12.0.0.1 24
[R1-GigabitEthernet0/0/2]undo shutdown
[R1-GigabitEthernet0/0/2]q
#配置指向PC7的默认路由
[R1]ip route-static 0.0.0.0 0.0.0.0 12.0.0.2
<Huawei>system-view
[Huawei]sysname R2
#在全局模式下开启dhcp功能
[R2]dhcp enable
#配置IP地址
[R2]int g0/0/2
[R2-GigabitEthernet0/0/2]ip add 12.0.0.2 24
[R2-GigabitEthernet0/0/2]undo shutdown
[R2-GigabitEthernet0/0/2]q
#配置IP地址、指向DHCP服务器
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 15.0.0.1 24
<Huawei>sys
[Huawei]sysname R3
#在全局模式下开启dhcp功能
[R3]dhcp enable
#配置IP地址、宣告DHCP地址池
[R3]interface g0/0/3
[R3-GigabitEthernet0/0/3]ip add 14.0.0.2 24
#选择全局的地址池给DHCP客户端使用，而"dhcp select interface"则是选择接口的地址池给DHCP客户端使用
[R3-GigabitEthernet0/0/3]dhcp select global
[R3-GigabitEthernet0/0/3]undo shutdown
[R3-GigabitEthernet0/0/3]q
#配置主机PC7的地址池（名称：pc7）
[R3]ip pool dhcp-pc7
#设置IP地址网段
[R3-ip-pool-dhcp-pc7]network 15.0.0.0 mask 24
#设置网关
[R3-ip-pool-dhcp-pc7]gateway-list 15.0.0.1
#DNS服务器地址
[R3-ip-pool-dhcp-pc7]dns-list 8.8.8.8 114.114.114.114
[R3-ip-pool-dhcp-pc7]q
#配置VLAN10的IP地址池
[R3]ip pool dhcp-vlan10
[R3-ip-pool-dhcp-vlan10]network 192.168.10.0 mask 24
[R3-ip-pool-dhcp-vlan10]gateway-list 192.168.10.1
[R3-ip-pool-dhcp-vlan10]dns-list 8.8.8.8 114.114.114.114
[R3-ip-pool-dhcp-vlan10]q
#配置VLAN20的IP地址池
[R3]ip pool dhcp-vlan20
[R3-ip-pool-dhcp-vlan20]network 192.168.20.0 mask 24
[R3-ip-pool-dhcp-vlan20]gateway-list 192.168.20.1
[R3-ip-pool-dhcp-vlan20]dns-list 8.8.8.8 114.114.114.114
[R3-ip-pool-dhcp-vlan20]q
#配置静态路由
[R3]ip route-static 192.168.10.0 24 14.0.0.1
[R3]ip route-static 192.168.20.0 24 14.0.0.1
[R3]ip route-static 15.0.0.0 24 14.0.0.1
#指向DHCP服务器
[R2-GigabitEthernet0/0/0]dhcp select relay
[R2-GigabitEthernet0/0/0]dhcp relay server-ip 14.0.0.2
[R2-GigabitEthernet0/0/0]undo shut
[R2-GigabitEthernet0/0/0]q
#配置向左流通的静态路由
[R2]ip route-static 192.168.10.0 24 12.0.0.1
[R2]ip route-static 192.168.20.0 24 12.0.0.1
[R2]ip route-static 14.0.0.0 24 12.0.0.1
测试pc自动获得IP地址