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【DHCP实验】使用三层交换机配置DHCP Server服务器（基于全局地址池配置）

2023-02-18 16:27:13 时间

实验 使用三层交换机配置DHCP Server服务器（基于全局地址池配置）

实验目录

一、实验拓扑

二、实验要求

三层交换机S1通过DHCP的公有地址池给PC1和PC2分配IP地址，PC1属于vlan30,PC2属于vlan40,具体要求如下： (1) 更改主机名S1 (2) 创建vlan 30 40 (3) 配置vlanif 30接口的IP地址为192.168.30.254,vlanif 40接口的IP地址为192.168.40.254 (4) 配置access接口 (5) 启用DHCP (6) 配置全局地址池 地址池1名：dhcp_vlan30 地址网段：192.168.30.0/24 网关：192.168.30.254 DNS服务器地址：114.114.114.114和 8.8.8.8 地址池2名：dhcp_vlan40 地址网段：192.168.40.0/24 网关：192.168.40.254 DNS服务器地址：114.114.114.114和 8.8.8.8 (7) 配置vlanif 30和vlanif40虚接口下启用全局地址池

三、实验步骤

(1) 更改主机名S1
The device is running!
<Huawei>system-view 
Enter system view, return user view with Ctrl+Z.	
[Huawei]undo info-center enable 
Info: Information center is disabled.	
[Huawei]sysname S1
[S1]

(2) 创建vlan 30 40
[S1]vlan batch 30 40
Info: This operation may take a few seconds. Please wait for a moment...done.
[S1]

(3) 配置vlanif 30接口的IP地址为192.168.30.254,vlanif 40接口的IP地址为192.168.40.254
！！！注意配置接口IP地址与配置端口access时的先后顺序，应先创建并配置vlan以及接口IP地址，再将各个端口加入相应的vlan中，否则vlan端口启动不了！！！
[S1]interface Vlanif 30
[S1-Vlanif30]ip address 192.168.30.254 24
[S1-Vlanif30]display this
#
interface Vlanif30
 ip address 192.168.30.254 255.255.255.0
#
return
[S1-Vlanif30]quit	
[S1]interface Vlanif 40
[S1-Vlanif40]ip address 192.168.40.254 24
[S1-Vlanif40]display this
#
interface Vlanif40
 ip address 192.168.40.254 255.255.255.0
#
return
[S1-Vlanif40]quit	
[S1]display ip interface brief 
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 2
The number of interface that is DOWN in Physical is 3
The number of interface that is UP in Protocol is 1
The number of interface that is DOWN in Protocol is 4

Interface                         IP Address/Mask      Physical   Protocol  
MEth0/0/1                         unassigned           down       down      
NULL0                             unassigned           up         up(s)     
Vlanif1                           unassigned           up         down      
Vlanif30                          192.168.30.254/24    down       down      
Vlanif40                          192.168.40.254/24    down       down      
[S1]

(4) 配置access接口
[S1]interface GigabitEthernet 0/0/1
[S1-GigabitEthernet0/0/1]port link-type access 		
[S1-GigabitEthernet0/0/1]port default vlan 30
[S1-GigabitEthernet0/0/1]display this
#
interface GigabitEthernet0/0/1
 port link-type access
 port default vlan 30
#
return
[S1-GigabitEthernet0/0/1]quit

[S1]interface GigabitEthernet 0/0/3
[S1-GigabitEthernet0/0/3]port link-type access 	
[S1-GigabitEthernet0/0/3]port default vlan 40
[S1-GigabitEthernet0/0/3]display this
#
interface GigabitEthernet0/0/3
 port link-type access
 port default vlan 40
#
return
[S1-GigabitEthernet0/0/3]quit
[S1]display ip interface brief 
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 2
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 2

Interface                         IP Address/Mask      Physical   Protocol  
MEth0/0/1                         unassigned           down       down      
NULL0                             unassigned           up         up(s)     
Vlanif1                           unassigned           down       down      
Vlanif30                          192.168.30.254/24    up         up        
Vlanif40                          192.168.40.254/24    up         up        
[S1]

(5) 启用DHCP
[S1]dhcp enable 
[S1]

(6) 配置全局地址池
     地址池1名：dhcp_vlan30
     地址网段：192.168.30.0/24
     网关：192.168.30.254
     DNS服务器地址：114.114.114.114和 8.8.8.8
     地址池2名：dhcp_vlan40
     地址网段：192.168.40.0/24
     网关：192.168.40.254
     DNS服务器地址：114.114.114.114和 8.8.8.8
[S1]ip pool dhcp_vlan30
Info:It's successful to create an IP address pool.	
[S1-ip-pool-dhcp_vlan30]network 192.168.30.0 mask 24	
[S1-ip-pool-dhcp_vlan30]gateway-list 192.168.30.254	
[S1-ip-pool-dhcp_vlan30]dns-list 114.114.114.114 8.8.8.8
[S1-ip-pool-dhcp_vlan30]display this
#
ip pool dhcp_vlan30
 gateway-list 192.168.30.254
 network 192.168.30.0 mask 255.255.255.0
 dns-list 114.114.114.114 8.8.8.8
#
return
[S1-ip-pool-dhcp_vlan30]quit
[S1]ip pool dhcp_vlan40
Info:It's successful to create an IP address pool.
[S1-ip-pool-dhcp_vlan40]network 192.168.40.0 mask 24
[S1-ip-pool-dhcp_vlan40]gateway-list 192.168.40.254
[S1-ip-pool-dhcp_vlan40]dns-list 114.114.114.114 8.8.8.8
[S1-ip-pool-dhcp_vlan40]display this
#
ip pool dhcp_vlan40
 gateway-list 192.168.40.254
 network 192.168.40.0 mask 255.255.255.0
 dns-list 114.114.114.114 8.8.8.8
#
return
[S1-ip-pool-dhcp_vlan40]quit
[S1]display ip pool 
  -----------------------------------------------------------------------
  Pool-name      : dhcp_vlan30
  Pool-No        : 0
  Position       : Local           Status           : Unlocked
  Gateway-0      : 192.168.30.254  
  Mask           : 255.255.255.0
  VPN instance   : --

  -----------------------------------------------------------------------
  Pool-name      : dhcp_vlan40
  Pool-No        : 1
  Position       : Local           Status           : Unlocked
  Gateway-0      : 192.168.40.254  
  Mask           : 255.255.255.0
  VPN instance   : --


  IP address Statistic
    Total       :506   
    Used        :0          Idle        :506   
    Expired     :0          Conflict    :0          Disable   :0     
[S1]

(7) 配置vlanif 30和vlanif40虚接口下启用全局地址池
[S1]interface Vlanif 30	
[S1-Vlanif30]dhcp select global 
[S1-Vlanif30]display this
#
interface Vlanif30
 ip address 192.168.30.254 255.255.255.0
 dhcp select global
#
return
[S1-Vlanif30]quit
[S1]interface Vlanif 40
[S1-Vlanif40]dhcp select global
[S1-Vlanif40]display this
#
interface Vlanif40
 ip address 192.168.40.254 255.255.255.0
 dhcp select global
#
return
[S1-Vlanif40]quit


[S1]display ip pool name dhcp_vlan30 
  Pool-name      : dhcp_vlan30
  Pool-No        : 0
  Lease          : 1 Days 0 Hours 0 Minutes
  Domain-name    : -
  DNS-server0    : 114.114.114.114 
  DNS-server1    : 8.8.8.8        
  NBNS-server0   : -               
  Netbios-type   : -               
  Position       : Local           Status           : Unlocked
  Gateway-0      : 192.168.30.254  
  Mask           : 255.255.255.0
  VPN instance   : --
 -----------------------------------------------------------------------------
         Start           End     Total  Used  Idle(Expired)  Conflict  Disable
 -----------------------------------------------------------------------------
    192.168.30.1  192.168.30.254   253     1        252(0)         0        0
 -----------------------------------------------------------------------------

[S1]

[S1]display ip pool name dhcp_vlan40 
  Pool-name      : dhcp_vlan40
  Pool-No        : 1
  Lease          : 1 Days 0 Hours 0 Minutes
  Domain-name    : -
  DNS-server0    : 114.114.114.114 
  DNS-server1    : 8.8.8.8         
  NBNS-server0   : -               
  Netbios-type   : -               
  Position       : Local           Status           : Unlocked
  Gateway-0      : 192.168.40.254  
  Mask           : 255.255.255.0
  VPN instance   : --
 -----------------------------------------------------------------------------
         Start           End     Total  Used  Idle(Expired)  Conflict  Disable
 -----------------------------------------------------------------------------
    192.168.40.1  192.168.40.254   253     1        252(0)         0        0
 -----------------------------------------------------------------------------
[S1]

(8)保存S1交换机上的配置文件
[S1]q
<S1>save
The current configuration will be written to the device.
Are you sure to continue?[Y/N]y
Now saving the current configuration to the slot 0.
Save the configuration successfully.
<S1>

四、实验测试

执行ipconfig命令 执行ipconfig /release ——释放获取到的IP地址参数 执行ipconfig /renew——获取新的IP地址参数

PC1

PC>ipconfig /release

IP Configuration


Link local IPv6 address...........: fe80::5689:98ff:fe79:248a
IPv6 address......................: :: / 128
IPv6 gateway......................: ::
IPv4 address......................: 0.0.0.0
Subnet mask.......................: 0.0.0.0
Gateway...........................: 0.0.0.0
Physical address..................: 54-89-98-79-24-8A
DNS server........................:

PC>ipconfig /renew

IP Configuration


Link local IPv6 address...........: fe80::5689:98ff:fe79:248a
IPv6 address......................: :: / 128
IPv6 gateway......................: ::
IPv4 address......................: 192.168.30.253
Subnet mask.......................: 255.255.255.0
Gateway...........................: 192.168.30.254
Physical address..................: 54-89-98-79-24-8A
DNS server........................: 114.114.114.114
                                    8.8.8.8

PC>

PC2

PC>ipconfig /release

IP Configuration


Link local IPv6 address...........: fe80::5689:98ff:fe99:4726
IPv6 address......................: :: / 128
IPv6 gateway......................: ::
IPv4 address......................: 0.0.0.0
Subnet mask.......................: 0.0.0.0
Gateway...........................: 0.0.0.0
Physical address..................: 54-89-98-99-47-26
DNS server........................:

PC>ipconfig /renew

IP Configuration


Link local IPv6 address...........: fe80::5689:98ff:fe99:4726
IPv6 address......................: :: / 128
IPv6 gateway......................: ::
IPv4 address......................: 192.168.40.253
Subnet mask.......................: 255.255.255.0
Gateway...........................: 192.168.40.254
Physical address..................: 54-89-98-99-47-26
DNS server........................: 114.114.114.114
                                    8.8.8.8

PC>

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