2023年11月27日发(作者：)

DHCP给不同vlan分配IP

⽹络拓扑图如下：

接⼊层交换机划分vlan、与核⼼交换机相连的接⼝打trunk

SW3：

system-view

[Huawei]undo info-center enable

[Huawei]sysname SW3

[SW3]vlan 10

[SW3-vlan10]quit

[SW3]port-group group-member Ethernet 0/0/2 to Ethernet 0/0/3 #端⼝组操作

[SW3-port-group]port link-type access

[SW3-port-group]port default vlan 10

[SW3-port-group]quit

[SW3]interface Ethernet0/0/1

[SW3-Ethernet0/0/1]port link-type trunk

[SW3-Ethernet0/0/1]port trunk allow-pass vlan 10

SW4：

system-view

[Huawei]undo info-center enable

[Huawei]sysname SW4

[SW4]vlan 20

[SW4-vlan20]quit

[SW4]interface Ethernet0/0/2

[SW4-Ethernet0/0/2]port link-type access

[SW4-Ethernet0/0/2]port default vlan 20

[SW4-Ethernet0/0/2]quit

[SW4]interface Ethernet0/0/1

[SW4-Ethernet0/0/1]port link-type trunk

[SW4-Ethernet0/0/1]port trunk allow-pass vlan 20

SW5：

system-view

[Huawei]undo info-center enable

[Huawei]sysname SW5

[SW5]vlan 30

[SW5-vlan30]quit

[SW5]port-group group-member Ethernet 0/0/2 to Ethernet 0/0/3

[SW5-port-group]port link-type access

[SW6-Ethernet0/0/1]port trunk allow-pass vlan all

SW7：

system-view

[Huawei]undo info-center enable

[Huawei]sysname SW7

[SW7]vlan 90

[SW7-vlan90]quit

[SW7]interface Ethernet0/0/2

[SW7-Ethernet0/0/2]port link-type access

[SW7-Ethernet0/0/2]port default vlan 90

[SW7-Ethernet0/0/2]quit

[SW7]interface Ethernet0/0/1

[SW7-Ethernet0/0/1]port link-type trunk

[SW7-Ethernet0/0/1]port trunk allow-pass vlan all

核⼼交换机配置：

SW1：

system-view

[Huawei]undo info-center enable

[Huawei]sysname SW1

[SW1]vlan batch 10 20 30 80 90

[SW1]port-group group-member GigabitEthernet 0/0/1 to GigabitEthernet 0/0/5

[SW1-port-group]port link-type trunk

[SW1-port-group]quit

SW2：

system-view

[Huawei]undo info-center enable

[Huawei]sysname SW2

[SW2]vlan batch 80 90

[SW2]port-group group-member GigabitEthernet 0/0/1 to GigabitEthernet 0/0/3

[SW2-port-group]port link-type trunk

[SW2-port-group]port trunk allow-pass vlan all

DHCP服务器配置

AR1：

system-view

[Huawei]undo info-center enable

[Huawei]sysname AR1

[AR1]dhcp enable

VLAN 10配置DHCP：

[AR1]interface GigabitEthernet 0/0/0.10 #创建⼦接⼝

[AR1-GigabitEthernet0/0/0.10]ip address 10.10.10.1 24 #配置IP地址

[AR1-GigabitEthernet0/0/0.10]dot1q termination vid 10 #绑定vlan10

[AR1-GigabitEthernet0/0/0.10]arp broadcast enable #开启arp⼴播

[AR1-GigabitEthernet0/0/0.10]dhcp select global #全局分配地址

[AR1-GigabitEthernet0/0/0.10]quit #退出

[AR1]ip pool vlan10 #创建地址池vlan10

[AR1-ip-pool-vlan10]network 10.10.10.0 mask 24 #设定⽹段

[AR1-ip-pool-vlan10]gateway-list 10.10.10.1 #配置⽹关地址

[AR1-ip-pool-vlan10]dns-list 10.10.10.1 #配置dns地址

[AR1-ip-pool-vlan10]quit

VLAN 20配置DHCP：

[AR1]interface GigabitEthernet 0/0/0.20

[AR1-GigabitEthernet0/0/0.20]ip address 20.20.20.1 24

[AR1-GigabitEthernet0/0/0.20]dot1q termination vid 20

[AR1-GigabitEthernet0/0/0.20]arp broadcast enable

[AR1-GigabitEthernet0/0/0.20]dhcp select global

[AR1-GigabitEthernet0/0/0.20]quit

[AR1]ip pool vlan20

[AR1-ip-pool-vlan20]network 20.20.20.0 mask 24

[AR1-ip-pool-vlan20]gateway-list 20.20.20.1

[AR1-ip-pool-vlan20]dns-list 20.20.20.1

[AR1-ip-pool-vlan20]quit

VLAN 30配置DHCP：

[AR1]interface GigabitEthernet 0/0/0.30

[AR1-GigabitEthernet0/0/0.30]ip address 30.30.30.1 24

[AR1-GigabitEthernet0/0/0.30]dot1q termination vid 30

[AR1-GigabitEthernet0/0/0.30]arp broadcast enable

[AR1-GigabitEthernet0/0/0.30]dhcp select global

[AR1-GigabitEthernet0/0/0.30]quit

[AR1]ip pool vlan30

[AR1-ip-pool-vlan30]network 30.30.30.0 mask 24

[AR1-ip-pool-vlan30]gateway-list 30.30.30.1

[AR1-ip-pool-vlan30]dns-list 30.30.30.1

VLAN 80配置DHCP：

[AR1]interface GigabitEthernet 0/0/0.80

[AR1-GigabitEthernet0/0/0.80]ip address 80.80.80.1 24

[AR1-GigabitEthernet0/0/0.80]dot1q termination vid 80

[AR1-GigabitEthernet0/0/0.80]arp broadcast enable

[AR1-GigabitEthernet0/0/0.80]dhcp select global

[AR1-GigabitEthernet0/0/0.80]quit

[AR1]ip pool vlan80

[AR1-ip-pool-vlan80]network 80.80.80.0 mask 24

[AR1-ip-pool-vlan80]gateway-list 80.80.80.1

[AR1-ip-pool-vlan80]dns-list 80.80.80.1

VLAN 90配置DHCP：

[AR1]interface GigabitEthernet 0/0/0.90

[AR1-GigabitEthernet0/0/0.90]ip address 90.90.90.1 24

[AR1-GigabitEthernet0/0/0.90]dot1q termination vid 90

[AR1-GigabitEthernet0/0/0.90]arp broadcast enable

[AR1-GigabitEthernet0/0/0.90]dhcp select global

[AR1-GigabitEthernet0/0/0.90]quit

[AR1]ip pool vlan90

[AR1-ip-pool-vlan90]network 90.90.90.0 mask 24

[AR1-ip-pool-vlan90]gateway-list 90.90.90.1

[AR1-ip-pool-vlan90]dns-list 90.90.90.1

配置完成后，我们在PC上改为⾃动获取IP，然后再去ping不同vlan的电脑IP