DHCP
动态主机配置协议DHCP，来分配IP地址等网络参数，可以减少管理员的工作量，避免用户手工配置网络参数时造成的地址冲突。
R1（配置IP地址）
<Huawei>system-view
[Huawei]undo info-center enable
[Huawei]sysname R1
[R1]interface e0/0/0
[R1-Ethernet0/0/0]ip address 192.168.1.1 24
[R1-Ethernet0/0/0]quit
[R1]
R1（开启DHCP服务）
[R1]dhcp enable
R1(配置DHCP服务器）
[R1]ip pool IP
[R1-ip-pool-IP]network 192.168.1.0 mask 24
[R1-ip-pool-IP]gateway-list 192.168.1.1
[R1-ip-pool-IP]dns-list 192.168.1.1 8.8.8.8
[R1-ip-pool-IP]quit
[R1]
##### R1（将DHCP应用于接口）
[R1]interface e0/0/0
[R1-Ethernet0/0/0]dhcp select global
[R1-Ethernet0/0/0]quit
[R1]
PC机（设置为DHCP）
PC机（查看是否获取IP地址）
PC>ipconfig
Link local IPv6 address...........: fe80::5689:98ff:fec8:80f6
IPv6 address......................: :: / 128
IPv6 gateway......................: ::
IPv4 address......................: 192.168.1.254
Subnet mask.......................: 255.255.255.0
Gateway...........................: 192.168.1.1
Physical address..................: 54-89-98-C8-80-F6
DNS server........................: 192.168.1.1
8.8.8.8
PC机请求DHCP的数据包
R1（显示DHCP分配记录）
[R1]dis ip pool name IP used
Pool-name : IP
Pool-No : 0
Lease : 1 Days 0 Hours 0 Minutes
Domain-name : -
DNS-server0 : 192.168.1.1
DNS-server1 : 8.8.8.8
NBNS-server0 : -
Netbios-type : -
Position : Local Status : Unlocked
Gateway-0 : 192.168.1.1
Mask : 255.255.255.0
VPN instance : --
-----------------------------------------------------------------------------
Start End Total Used Idle(Expired) Conflict Disable
-----------------------------------------------------------------------------
192.168.1.1 192.168.1.254 253 4 249(0) 0 0
-----------------------------------------------------------------------------
Network section :
--------------------------------------------------------------------------
Index IP MAC Lease Status
--------------------------------------------------------------------------
251 192.168.1.252 5489-9820-0f38 512 Used
252 192.168.1.253 5489-98ab-521f 505 Used
253 192.168.1.254 5489-98c8-80f6 515 Used
--------------------------------------------------------------------------
[R1]
