动手演练之DHCP实验

随着我们对DHCP协议的深入了解,我们不妨动手做一下DHCP实验,来帮助我们了解DHCP的有关操作。这里我们就来讲解三个DHCP实验。近日,有朋友问我一些DHCP实验的一些问题。随便就再把DHCP的实验重新做了一次,与大家分离一下:

DHCP实验一:无DHCP代理

拓扑如下:

动手演练之DHCP实验

Router0配置如下:

!interface FastEthernet0/1
ip address 192.168.1.1 255.255.255.0
!
ip dhcp excluded-address 192.168.0.1
ip dhcp excluded-address 192.168.1.1
!
ip dhcp pool bapilong
network 192.168.0.0 255.255.255.0
default-router 192.168.0.1
dns-server 10.10.10.10

PC机可获取到IP地址,如图:

动手演练之DHCP实验

以上实验使用思科TP模拟器

DHCP实验二:使用DHCP中继代理

拓扑图如下:

动手演练之DHCP实验

Router1配置如下:

!
ip dhcp excluded-address 10.10.10.1
ip dhcp excluded-address 20.20.20.1
!
ip dhcp pool work1
   network 10.10.10.0 255.255.255.0
   default-router 10.10.10.1 
   dns-server 100.100.100.100 
!
ip dhcp pool work2
   network 20.20.20.0 255.255.255.0
   default-router 20.20.20.1 
   dns-server 100.100.100.100
!
interface Ethernet1/0
ip address 23.1.1.2 255.255.255.0
!
ip route 10.10.10.0 255.255.255.0 23.1.1.1
ip route 20.20.20.0 255.255.255.0 23.1.1.1

Router2配置如下:

interface Ethernet1/0
ip address 10.10.10.1 255.255.255.0
ip helper-address 23.1.1.2
!
interface Ethernet1/1
ip address 23.1.1.1 255.255.255.0
!
interface Ethernet1/3
ip address 20.20.20.1 255.255.255.0
ip helper-address 23.1.1.2

DHCP实验结果如下:

PC2:

R1#Interface FastEthernet0/1 assigned DHCP address 10.10.10.2, mask 255.255.255.0
R4#show ip int br

Interface                  IP-Address         OK?   Method             Status                   Protocol
FastEthernet0/0       unassigned      YES      unset    administratively down        down    
FastEthernet0/1       10.10.10.2       YES       DHCP             up                             up

PC3:

R4#Interface FastEthernet0/1 assigned DHCP address 20.20.20.2, mask 255.255.255.0

Interface                  IP-Address      OK?      Method              Status                   Protocol
FastEthernet0/0      unassigned      YES        unset     administratively down      down    
FastEthernet0/1      20.20.20.2       YES         DHCP                 up                        up 

以上使用工大DY,CCNA路由版做为实验,用思科TP做这个实验时总是无法获取IP地址,故使用DY,其中的PC2为R3路由器,PC3为R4路由器,该两台路由器模拟成PC机,具体配置我就不帖出来了。

DHCP实验三:使用三层交换机

网络拓扑如下:

动手演练之DHCP实验

三层交换机配置如下:

!  


interface FastEthernet0/1  


switchport access vlan 20  


!  


interface FastEthernet0/2  


switchport access vlan 30  


!  


interface Vlan20  


ip address 20.20.20.1 255.255.255.0  


!  


interface Vlan30  


ip address 30.30.30.1 255.255.255.0  


!  


ip dhcp pool work1  


network 20.20.20.0 255.255.255.0  


default-router 20.20.20.1  


dns-server 100.100.100.100  


ip dhcp pool work2  


network 30.30.30.0 255.255.255.0  


default-router 30.30.30.1  


dns-server 100.100.100.100 

DHCP实验结果如下:

PC4:

动手演练之DHCP实验

PC5配置如下:

相关推荐