路由器做DHCP的基本實驗(一)
dhcp client端配置：
R1(config)#int f0/0
R1(config-if)#ip address ?
A.B.C.D IP address
dhcp IP Address negotiated via DHCP
pool IP Address autoconfigured from a local DHCP pool
R1(config-if)#ip address dhcp
R1(config-if)#no shu
dhcp server端配置：
R2(config)#hostname dhcp-server
dhcp-server(config)#ip dhcp exclude
dhcp-server(config)#ip dhcp excluded-address 192.168.1.1 192.168.1.10
dhcp-server(config)#int f0/0
dhcp-server(config-if)#no shu
dhcp-server(config-if)#ip address 192.168.1.2 255.255.255.0
dhcp-server(config-if)#exit
dhcp-server(config)#ip dhcp pool wudipool
dhcp-server(dhcp-config)#network 192.168.1.0 ?
/nn or A.B.C.D Network mask or prefix length
<cr>
dhcp-server(dhcp-config)#network 192.168.1.0 /24
dhcp-server(dhcp-config)#default-route 192.168.1.2
dhcp-server(dhcp-config)#dns-server 202.103.24.68
dhcp-server(dhcp-config)#lease ?
<0-365> Days
infinite Infinite lease
dhcp-server(dhcp-config)#lease 1
驗證:
R1#show ip int b
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 192.168.1.11 YES DHCP up up
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路由器做DHCP的實驗(二)
dhcp client端配置：
R1(config)#hostname dhcpclient
dhcpclient(config)#int e0/0
dhcpclient(config-if)#ip add dhcp
dhcpclient(config-if)#no shu
R2(config)#int e0/0
R2(config-if)#ip add 192.168.1.2 255.255.255.0
R2(config-if)#no shu
R2(config-if)#int s1/0
R2(config-if)#ip add 192.168.2.2 255.255.255.0
R2(config-if)#no shu
R2(config-if)#clock rate 1008000
R2(config-if)#int e0/0
R2(config-if)#ip helper-address 192.168.2.3
dhcp server端配置：
R3(config)#ip dhcp pool wudi-pool
R3(dhcp-config)#network 192.168.1.0 /24
R3(dhcp-config)#default-route 192.168.1.2
R3(dhcp-config)#dns-server 202.103.24.68
R3(dhcp-config)#exit
R3(config)#ip dhcp excluded-address 192.168.1.200 192.168.1.254
R3(config)#ip route 192.168.1.0 255.255.255.0 s1/1
R3(config-if)#int s1/1
R3(config-if)#ip add 192.168.2.3 255.255.255.0
R3(config-if)#no shu
驗證:
dhcpclient#show ip int b
Interface IP-Address OK? Method Status Protocol
Ethernet0/0 192.168.1.1 YES DHCP up up