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.
[Huawei]un
[Huawei]undo inf
[Huawei]undo info-center e
[Huawei]undo info-center enable
Info: Information center is disabled.
[Huawei]sysna
[Huawei]sysname
^
Error:Incomplete command found at '^' position.
[Huawei]
[Huawei]sysname Router
配置路由器接口的ip
[Router]int g 0/0/0
[Router-GigabitEthernet0/0/0]ip a
[Router-GigabitEthernet0/0/0]ip add
[Router-GigabitEthernet0/0/0]ip address 10.1.1.1 24
[Router-GigabitEthernet0/0/0]
三、DHCP配置
方式一接口配置：
[Router]dhcp enable
Info: The operation may take a few seconds. Please wait for a moment.done.
[Router]int g0/0/0
[Router-GigabitEthernet0/0/0]dh
[Router-GigabitEthernet0/0/0]dhcp s
[Router-GigabitEthernet0/0/0]dhcp select in
[Router-GigabitEthernet0/0/0]dhcp select interface
[Router-GigabitEthernet0/0/0]d
[Router-GigabitEthernet0/0/0]dh
[Router-GigabitEthernet0/0/0]dhcp server
[Router-GigabitEthernet0/0/0]dhcp server dns
[Router-GigabitEthernet0/0/0]dhcp server dns-list 10.1.1.2
[Router-GigabitEthernet0/0/0]d
[Router-GigabitEthernet0/0/0]dh
[Router-GigabitEthernet0/0/0]dhcp se
[Router-GigabitEthernet0/0/0]dhcp ser
[Router-GigabitEthernet0/0/0]dhcp server ex
[Router-GigabitEthernet0/0/0]dhcp server excluded-ip-address 10.1.1.2
[Router-GigabitEthernet0/0/0]d
[Router-GigabitEthernet0/0/0]hc
[Router-GigabitEthernet0/0/0]dhc
[Router-GigabitEthernet0/0/0]dhcp se
[Router-GigabitEthernet0/0/0]dhcp ser
[Router-GigabitEthernet0/0/0]dhcp server lease day 3
[Router-GigabitEthernet0/0/0]q
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-GigabitEthernet0/0/0]undo dhcp select in
[Router-GigabitEthernet0/0/0]undo 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：
[Router]ip pool a
[Router-ip-pool-a]network 10.1.1.0 m
[Router-ip-pool-a]network 10.1.1.0 mask 4
Error:Invalid subnet mask.
[Router-ip-pool-a]network 10.1.1.0 mask 24
[Router-ip-pool-a]int g0/0/0
[Router-GigabitEthernet0/0/0]dhcp select global
[Router-GigabitEthernet0/0/0]
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...........................: 0.0.0.0
Physical address..................: 54-89-98-CE-30-3F
DNS server........................: 10.1.1.2
PC>
