1.搭建拓扑图并命名 [Huawei]sysname DHCP [DHCP]

[Huawei]sysname R1 [R1]

2.2台路由器上开启dhcp服务并配置ip

[DHCP]interface g0/0/0 [DHCP-GigabitEthernet0/0/0]ip add [DHCP-GigabitEthernet0/0/0]ip address 192.168.1.2 24 Feb 6 2018 15:29:35-08:00 DHCP %%01IFNET/4/LINK_STATE(l)[0]:The line protocol I P on the interface GigabitEthernet0/0/0 has entered the UP state. [DHCP-GigabitEthernet0/0/0]ip address 192.168.1.1 24 [DHCP-GigabitEthernet0/0/0]q [DHCP]dhcp [DHCP]dhcp en [DHCP]dhcp enable Info: The operation may take a few seconds. Please wait for a moment.done. [DHCP]

[R1]interface GigabitEthernet 0/0/0 [R1-GigabitEthernet0/0/0]ip add [R1-GigabitEthernet0/0/0]ip address 192.168.1.2 24 Feb 6 2018 15:30:02-08:00 R1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP on the interface GigabitEthernet0/0/0 has entered the UP state. [R1-GigabitEthernet0/0/0]q [R1]dhcp enable Info: The operation may take a few seconds. Please wait for a moment.done. [R1-GigabitEthernet0/0/1]ip address 192.168.2.254 24 Feb 6 2018 15:34:28-08:00 R1 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP on the interface GigabitEthernet0/0/1 has entered the UP state. [R1-GigabitEthernet0/0/1]

3.配置地址池、路由 [DHCP]ip pool p1 Info: It's successful to create an IP address pool.

配置网段 [DHCP-ip-pool-p1]network 192.168.2.254 mask 24

配置网关 [DHCP-ip-pool-p1]gateway-list 192.168.2.254

配置默认路由 [DHCP]ip route-static 0.0.0.0 0.0.0.0 192.168.1.2

4.配置dhcp中继

DHCP的g0/0/0应用基于全局dhcp [DHCP-GigabitEthernet0/0/0]dhcp select global

R1上配置中继 [R1]interface g0/0/1 [R1-GigabitEthernet0/0/1]dhcp select relay [R1-GigabitEthernet0/0/1]dhcp relay server-ip 192.168.1.1

5.测试

PC>ipconfig

Link local IPv6 address...........: fe80::5689:98ff:fe79:652f IPv6 address......................: :: / 128 IPv6 gateway......................: :: IPv4 address......................: 192.168.2.253 Subnet mask.......................: 255.255.255.0 Gateway...........................: 192.168.2.254 Physical address..................: 54-89-98-79-65-2F DNS server........................:

6.配置dns、地址排除、租期并测试 [DHCP]ip pool p1 [DHCP-ip-pool-p1]dn [DHCP-ip-pool-p1]dns-list 8.8.8.8 [DHCP-ip-pool-p1]excluded-ip-address 192.168.2.100 192.168.2.252 [DHCP-ip-pool-p1] [DHCP-ip-pool-p1]lease day 3

PC>ipconfig

Link local IPv6 address...........: fe80::5689:98ff:fea6:606e IPv6 address......................: :: / 128 IPv6 gateway......................: :: IPv4 address......................: 192.168.2.99 Subnet mask.......................: 255.255.255.0 Gateway...........................: 192.168.2.254 Physical address..................: 54-89-98-A6-60-6E DNS server........................: 8.8.8.8

7.查看dhcp地址池地址使用状况 <DHCP>display ip pool name p1 used
Pool-name : p1 Pool-No : 0 Lease : 3 Days 0 Hours 0 Minutes Domain-name : - DNS-server0 : 8.8.8.8
NBNS-server0 : -
Netbios-type : -
Position : Local Status : Unlocked Gateway-0 : 192.168.2.254
Mask : 255.255.255.0 ××× instance : --

     Start           End     Total  Used  Idle(Expired)  Conflict  Disable

 192.168.2.1   192.168.2.254   253     2         98(0)         0      153

Network section :

Index IP MAC Lease Status

 98    192.168.2.99    5489-98a6-606e       1362   Used       
252   192.168.2.253    5489-9879-652f       1796   Used