HCIA中關于DHCP的常見問題
首先我們要了解何為DHCP
DHCP服務 – 動態主機配置協議 統一分發管理ip地址；
在網路中部署一臺DHCP服務器，之后終端設備通過廣播來尋找DHCP服務器獲取ip地址即可
成為DHCP服務器的條件：
1、 該設備必須存在介面或網卡連接到所要下放地址的廣播域內
2、 該介面或網卡，必須已經擁有合法ip地址，且可以通信
[Huawei]dhcp enable 先在設備上開啟DHCP服務
在設備上創建名為xiaoqiang的DHCP池塘，一臺設備上可以創建多個池塘，但一個池塘只能服務一個廣播域
關于上圖，我們要想實作PC5和PC6互相訪問，先點擊路由器，等待其連接好后，在其中輸入
system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]interface GigabitEthernet 0/0/0
[Huawei-GigabitEthernet0/0/0]ip address 192.168.1.1 255.255.255.0
Jan 5 2021 21:10:16-08:00 Huawei %%01IFNET/4/LINK_STATE(l)[2]:The line protocol
IP on the interface GigabitEthernet0/0/0 has entered the UP state.
[Huawei-GigabitEthernet0/0/0]q //回傳上一步
[Huawei]interface GigabitEthernet 0/0/1
[Huawei-GigabitEthernet0/0/1]ip address 192.168.2.1 24
Jan 5 2021 21:10:59-08:00 Huawei %%01IFNET/4/LINK_STATE(l)[3]:The line protocol
IP on the interface GigabitEthernet0/0/1 has entered the UP state.
[Huawei-GigabitEthernet0/0/1]q
[Huawei]dhcp enable
Info: The operation may take a few seconds. Please wait for a moment.done.
[Huawei]ip pool xianyu
Info: It’s successful to create an IP address pool.
[Huawei-ip-pool-xianyu]network 192.168.1.0 ma
[Huawei-ip-pool-xianyu]network 192.168.1.0 mask 255.255.255.0
[Huawei-ip-pool-xianyu]gateway-list 192.168.1.1
[Huawei-ip-pool-xianyu]dns-list 114.114.114.114 8.8.8.8
[Huawei-ip-pool-xianyu]q
[Huawei]ip pool xianyu
[Huawei-ip-pool-xianyu]q
[Huawei]ip pool cangshu
Info: It’s successful to create an IP address pool.
[Huawei-ip-pool-cangshu]network 192.168.2.0 mask 255.255.255.0
[Huawei-ip-pool-cangshu]gateway-list 192.168.2.1
[Huawei-ip-pool-cangshu]dns-list 114.114.114.114 8.8.8.8
[Huawei-ip-pool-cangshu]q
[Huawei]interface GigabitEthernet 0/0/0
[Huawei-GigabitEthernet0/0/0]dhcp select global
[Huawei-GigabitEthernet0/0/0]q
[Huawei]interface GigabitEthernet 0/0/1
[Huawei-GigabitEthernet0/0/1]
[Huawei-GigabitEthernet0/0/1]
成功后在 PC段輸入
就配置成功了
用PC5訪問PC6
成功訪問
要想訪問右邊借口，在路由器中輸入
sys
system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]int
[Huawei]interface g
[Huawei]interface GigabitEthernet 0/0/1
[Huawei-GigabitEthernet0/0/1]dhcp se
[Huawei-GigabitEthernet0/0/1]dhcp select g
[Huawei-GigabitEthernet0/0/1]dhcp select global
查看PC7中ip
配置成功
用PC7訪問PC8
用PC6訪問PC8
實驗成功
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