eNSP三：DHCP

任务

1. 按接口标记配置IP地址

2. LAN1配置接口地址池
   保留地址：　192.168.1.100~200的地址，用作他用，此处不得占用。
   地址租期：　2天
   DNS地址：　6.6.6.6

3. LAN2配置全局地址池
   地址池名字：p1
   地址池IP: 10.1.1.0/24
   网关IP： 10.1.1.1
   地址租期： 2天
   dns地址： 8.8.8.8

配置图说明

AR1配置LAN1

1. AR1接口IP地址分配

<r2>sys
Enter system view, return user view with Ctrl+Z.
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]ip add 192.168.1.1 24
Sep  7 2020 15:11:11-08:00 r2 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IP 
on the interface GigabitEthernet0/0/0 has entered the UP state. 
[r2-GigabitEthernet0/0/0]int g0/0/1
[r2-GigabitEthernet0/0/1]ip add 10.1.1.1 24
Sep  7 2020 15:11:27-08:00 r2 %%01IFNET/4/LINK_STATE(l)[3]:The line protocol IP 
on the interface GigabitEthernet0/0/1 has entered the UP state. 

2. LAN1

[r2]dhcp enable 
[r2]int g0/0/0
[r2-GigabitEthernet0/0/0]dhcp select interface 
[r2-GigabitEthernet0/0/0]dhcp server dns-list 6.6.6.6
[r2-GigabitEthernet0/0/0]dhcp server excluded-ip-address 192.168.1.100 192.168.1.200
[r2-GigabitEthernet0/0/0]dhcp server lease day 2

AR1配置LAN2

[r2]dhcp enable 
[r2]ip pool p1
Info: It's successful to create an IP address pool.
[r2-ip-pool-p1]gateway-list 10.1.1.1
[r2-ip-pool-p1]network 10.1.1.0 mask 24
[r2-ip-pool-p1]lease day 2
[r2-ip-pool-p1]dns-list 8.8.8.8
[r2-ip-pool-p1]q    
[r2]interface g0/0/1
[r2-GigabitEthernet0/0/1]dhcp select global 

结果展示

[r2]dis ip pool 
  -----------------------------------------------------------------------
  Pool-name      : GigabitEthernet0/0/0
  Pool-No        : 1
  Position       : Interface       Status           : Unlocked
  Gateway-0      : 192.168.1.1     
  Mask           : 255.255.255.0
  VPN instance   : --

  -----------------------------------------------------------------------
  Pool-name      : p1
  Pool-No        : 2
  Position       : Local           Status           : Unlocked
  Gateway-0      : 10.1.1.1        
  Mask           : 255.255.255.0
  VPN instance   : --


  IP address Statistic
    Total       :506   
    Used        :4          Idle        :401   
Expired     :0          Conflict    :0          Disable   :101   

双击配置图中的PC4主机，可以看到PC4获得了分配的IP地址！

1.png