一、拓扑图
网络拓扑需包含以下元素：
- PC1（DHCP客户端）
- 路由器（含DHCP服务功能）
- 连接线路（确保接口对应关系正确）
二、基础配置
PC1配置 启用DHCP获取IP地址：
路由器配置
配置路由器接口IP并启用DHCP：
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
Huaweiun
Huaweiundo inf
Huaweiundo info-center e
Huaweiundo info-center enable
Info: Information center is disabled.
Huaweisysna
Huaweisysname
^
Error:Incomplete command found at '^' position.
Huawei
Huaweisysname Router
配置路由器接口的ip
Routerint g 0/0/0
Router-GigabitEthernet0/0/0ip a
Router-GigabitEthernet0/0/0ip add
Router-GigabitEthernet0/0/0ip address 10.1.1.1 24
Router-GigabitEthernet0/0/0
三、DHCP配置
方式一接口配置：
Routerdhcp enable
Info: The operation may take a few seconds. Please wait for a moment.done.
Routerint g0/0/0
Router-GigabitEthernet0/0/0dh
Router-GigabitEthernet0/0/0dhcp s
Router-GigabitEthernet0/0/0dhcp select in
Router-GigabitEthernet0/0/0dhcp select interface
Router-GigabitEthernet0/0/0d
Router-GigabitEthernet0/0/0dh
Router-GigabitEthernet0/0/0dhcp server
Router-GigabitEthernet0/0/0dhcp server dns
Router-GigabitEthernet0/0/0dhcp server dns-list 10.1.1.2
Router-GigabitEthernet0/0/0d
Router-GigabitEthernet0/0/0dh
Router-GigabitEthernet0/0/0dhcp se
Router-GigabitEthernet0/0/0dhcp ser
Router-GigabitEthernet0/0/0dhcp server ex
Router-GigabitEthernet0/0/0dhcp server excluded-ip-address 10.1.1.2
Router-GigabitEthernet0/0/0d
Router-GigabitEthernet0/0/0hc
Router-GigabitEthernet0/0/0dhc
Router-GigabitEthernet0/0/0dhcp se
Router-GigabitEthernet0/0/0dhcp ser
Router-GigabitEthernet0/0/0dhcp server lease day 3
Router-GigabitEthernet0/0/0q
验证：
在PC端执行ipconfig，应获取到类似10.1.1.x的地址（排除预留的254）。
Invalid command!
PC>ipconfig
Link local IPv6 address...........: fe80::5689:98ff:fece:303f
IPv6 address......................: :: / 128
IPv6 gateway......................: ::
IPv4 address......................: 10.1.1.254
Subnet mask.......................: 255.255.255.0
Gateway...........................: 10.1.1.1
Physical address..................: 54-89-98-CE-30-3F
DNS server........................:
PC>ping 10.1.1.1
Ping 10.1.1.1: 32 data bytes, Press Ctrl_C to break
From 10.1.1.1: bytes=32 seq=1 ttl=255 time=94 ms
From 10.1.1.1: bytes=32 seq=2 ttl=255 time=62 ms
From 10.1.1.1: bytes=32 seq=3 ttl=255 time=47 ms
From 10.1.1.1: bytes=32 seq=4 ttl=255 time=32 ms
From 10.1.1.1: bytes=32 seq=5 ttl=255 time=31 ms
--- 10.1.1.1 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 31/53/94 ms
分到的是10.1.1.254，华为模拟器默认的是先用大的但是255是全1特殊地址
连通性也没有问题的
方式二全局配置：
清除原有接口配置
Router-GigabitEthernet0/0/0undo dhcp select in
Router-GigabitEthernet0/0/0undo dhcp select interface
Warning: There are IP addresses allocated in the pool. Are you sure to delete th
e pool?Y/N:Y
验证：
pc的dhcp关闭再打开
PC>ipconfig
Link local IPv6 address...........: fe80::5689:98ff:fece:303f
IPv6 address......................: :: / 128
IPv6 gateway......................: ::
IPv4 address......................: 0.0.0.0
Subnet mask.......................: 0.0.0.0
Gateway...........................: 0.0.0.0
Physical address..................: 54-89-98-CE-30-3F
DNS server........................: 10.1.1.2
PC>
配置全局：
Routerip pool a
Router-ip-pool-anetwork 10.1.1.0 m
Router-ip-pool-anetwork 10.1.1.0 mask 4
Error:Invalid subnet mask.
Router-ip-pool-anetwork 10.1.1.0 mask 24
Router-ip-pool-aint g0/0/0
Router-GigabitEthernet0/0/0dhcp select global
Router-GigabitEthernet0/0/0
PC>ipconfigLink local IPv6 address...........: fe80::5689:98ff:fece:303f
IPv6 address......................: :: / 128
IPv6 gateway......................: ::
IPv4 address......................: 10.1.1.254
Subnet mask.......................: 255.255.255.0
Gateway...........................: 0.0.0.0
Physical address..................: 54-89-98-CE-30-3F
DNS server........................: 10.1.1.2
PC>
