华为设备基于vlan划分的DHCP
1、首先搭建网络拓扑图，将三台PC机接入交换机，交换机接入路由器。
2、在交换机上设备vlan接口，vlan10 vlan20 vlan30 vlan40 ，是PC1接入vlan10，PC2接入vlan20,PC3接入vlan30 ，路由器接入vlan40.
3、给每个vlan创建一个网段，VLAN 10 IP 为192. 168.0.0/24网段 VLAN 20 IP为192. 168.1.0 / 24网段，vlan30 IP为192. 168.2.0/24网段，vlan40 IP为172.168. 0.0/24 网段。
4、设置每天vlanIF接口为中继，并指定DHCP 地址。如：
interface Vlanif10
ip address 192. 168.0.1 255.255.255.0
dhcp select relay
dhcp relay server-ip 172. 168.0.2
#
interface Vlanif20
ip address 192.168 .1.1 255.255.255.0
dhcp select relay
dhcp relay server-ip 172. 168.0.2
#
interface Vlanif30
ip address 192. 168. 2.1 255.255.255.0
dhcp select relay
dhcp relay server-ip 172 .168.0.2
#
interface Vlanif40
ip address 172. 168.0.1 25 5.255.255.0
5、在交换机做设置：
sysname R1
#
vlan batch 10 20 30 40
#
dhcp enable
#
ip pool vlan10
gateway-list 192.168.0.1
network 192.168.0.0 mask 255.255.255.0
excluded-ip-address 192.168.0.100 192.168.0.254
dns-list 192.168.0.1
#
ip pool vlan20
gateway-list 192.168.1.1
network 192.168.1.0 mask 255.255.255.0
lease day 2 hour 12 minute 30
dns-list 192.168.1.1
#
ip pool vlan30
gateway-list 192.168.2.1
network 192.168.2.0 mask 255.255.255.0
dns-list 192.168.2.1
#
interface Vlanif10
#
interface GigabitEthernet0/0/0
ip address 172.168.0.2 255.255.255.0
dhcp select global
#
interface NULL0
#
ip route-static 0.0.0.0 0.0.0.0 172.168.0.1
#
user-interface con 0
user-interface vty 0 4
user-interface vty 16 20
#
Return
6、设置完成。查看PC机IP地址。
