DHCP的综合实验

需求

• PC1、2、3、4，自动获得IP地址
• 且各个主机之间能互相通信

拓扑图

配置思路

• 配置DHCP客户端
• 配置DHCP服务器
• 配置DHCP中继
• 配置DHCP客户端和中继之间的交换网络
• 配置DHCP中继和服务器之间的路由网络

配置命令

• AR ——DHCP服务器

 @PC1设置为DHCP客户端
@设置DHCP服务器 
undo terminal monitor
system-view
sysname DHCP

dhcp enable 

ip pool VLAN10
network 192.168.10.0 mask 24 
gateway-list 192.168.10.254
dns-list 8.8.8.8
lease day 10
excluded-ip-address 192.168.10.253
quit

ip pool VLAN20
network 192.168.20.0 mask 24
gateway-list 192.168.20.254
dns-list 8.8.8.8
lease day 20
excluded-ip-address 192.168.20.253
quit

interface gi0/0/0
ip address 192.168.66.1 24
dhcp select global
quit
ip route-static 0.0.0.0 0 192.168.66.254 

注意： 默认路由不能丢，很多人都配置完成，却忘记了默认路由，主机始终获取不到IP地址

• lsw1

lsw1：
undo terminal monitor
system-view
sysname lsw1
vlan batch 10 20 66

dhcp enable 

interface vlanif 10 
ip address 192.168.10.254 24
dhcp select relay
dhcp relay server-ip 192.168.66.1
quit

interface vlanif 20 
ip address 192.168.20.254 24
dhcp select relay
dhcp relay server-ip 192.168.66.1
quit

interface vlanif 66
ip address 192.168.66.254 24

• lsw2

 undo terminal monitor
system-view
sysname lsw2
vlan batch 10 20 66
quit

interface Ethernet0/0/1
 port link-type access
 port default vlan 10
quit

interface Ethernet0/0/2
 port link-type access
 port default vlan 10
quit

interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
 quit
 

• lsw3

undo terminal monitor
system-view
sysname lsw3
vlan batch 10 20 66

interface Ethernet0/0/1
 port link-type access
 port default vlan 20
quit

interface Ethernet0/0/2
 port link-type access
 port default vlan 20
quit

interface GigabitEthernet0/0/2
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
 quit

验证