Dhcp中继ensp - 技术栈

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<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