路由器作DHCP服務器設置實例
設置DHCP Server之前路由器的基本配置信息
hostname "router"
!
enable secret 5 $1$siY9$wlJOkf2qcK6bvQGb5WfyK/
!
ip subnet-zero
!
interface FastEthernet0
!外網口設置
ip address 202.152.36.33 255.255.255.0
ip nat outside
!
interface FastEthernet1
!內網口設置
ip address 192.168.0.1 255.255.255.0
ip nat inside
!
ip nat inside source list 1 interface FastEthernet0 overload
ip nat translation dns-timeout 30
ip nat translation finrst-timeout 20
ip nat translation icmp-timeout 30
ip nat translation tcp-timeout 150
ip nat translation timeout 120
ip nat translation udp-timeout 150
ip nat optimize
ip nat limit-max-session all 350
ip classless
ip route 0.0.0.0 0.0.0.0 202.152.36.33
access-list 1 permit any
!
line con 0
line vty 0 4
password star
login
!
End
啟用DHCP服務器，配置如下：
NBR100#conf
Configuring from terminal, memory, or network [terminal]?
Enter configuration commands, one per line. End with CNTL/Z.
NBR100(config)#service dhcp
!啟用DHCP 服務
NBR100(config)#ip dhcp excluded 192.168.0.1 192.168.0.50
!設置排斥地址，不分配給客戶端
NBR100(config)#ip dhcp pool addpool
!設置地址池名稱
NBR100(config-dhcp)#network 192.168.0.0 255.255.255.0
!設置地址池網段
NBR100(config-dhcp)#default-router 192.168.0.1
!設置分配給客戶端主機的缺省網關
NBR100(config-dhcp)#dns-server 202.101.143.141
!設置分配給客戶端主機的DNS服務器地址
NBR100(config-dhcp)#end
NBR100#write
!保存配置
Building configuration...
[OK]
至此，配置完成。
NBR100#show run
Building configuration...
Current configuration:
!
!
hostname "NBR100"
!
enable secret 5 $1$M8NH$s0bDADQAsqmSgwiFI/mnM.
!
!
!
ip subnet-zero
ip dhcp excluded-address 192.168.0.1 192.168.0.50
!
ip dhcp pool addpool
default-router 192.168.0.1
dns-server 202.101.143.141
network 192.168.0.0 255.255.255.0
!
!
!
interface FastEthernet0
ip address 202.152.36.33 255.255.255.0
ip nat outside
!
interface FastEthernet1
ip address 192.168.0.1 255.255.255.0
ip nat inside
!
ip nat inside source list 1 interface FastEthernet0 overload
ip nat translation dns-timeout 30
ip nat translation finrst-timeout 20
ip nat translation icmp-timeout 30
ip nat translation tcp-timeout 150
ip nat translation timeout 120
ip nat translation udp-timeout 150
ip nat optimize
ip nat limit-max-session all 350
ip classless
ip route 0.0.0.0 0.0.0.0 202.152.36.34
access-list 1 permit any
!
line con 0
line vty 0 4
password star
login
!
end
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