Cisco的DHCP和VLAN综合实验
S1(config)#vlan 10S1(config-vlan)#vlan 20
S1(config-vlan)#vlan 30
S1(config-vlan)#do show vlan查看是否已创建且是否为活动状态
S1(config)#interface ethernet 0/0
S1(config-if)#switchport access vlan 10
S1(config-if)#inter e0/1
S1(config-if)#swi acc vlan 20
S1(config-if)#inter e0/3
S1(config-if)#swi ac vlan 30
S1(config-if)#inter e0/2
S1(config-if)#switchport trunk encapsulation dot1q
S1(config-if)#switchport mode trunk
S1(config-if)#do show inter e0/2 switchport查看0/2口是否为trunk口
R1(config)#interface fastEthernet 0/0.1
R1(config-subif)#encapsulation dot1Q 10
R1(config-subif)#ip add 192.168.1.254 255.255.255.0
R1(config-subif)#ip helper-address 192.168.3.1
R1(config)#interface fastEthernet 0/0.2
R1(config-subif)#encapsulation dot1Q 20
R1(config-subif)#ip add 192.168.2.254 255.255.255.0
R1(config-subif)#ip helper-address 192.168.3.1
R1(config)#interface fa0/0.3
R1(config-subif)#encapsulation dot1Q 30
R1(config-subif)#ip add 192.168.3.254 255.255.255.0
R1(config-subif)#inter fa0/0
R1(config-if)#no shutdown
R2(config)#ip dhcp excluded-address 192.168.1.200 192.168.1.255
R2(config)#ip dhcp excluded-address 192.168.2.200 192.168.2.255
R2(config)#ip dhcp pool pc1
R2(dhcp-config)#network 192.168.1.0 255.255.255.0
R2(dhcp-config)#default-router 192.168.1.254
R2(dhcp-config)#dns-server 8.8.8.8
R2(dhcp-config)#lease 2 3 4
R2(config)#ip dhcp pool pc2
R2(dhcp-config)#network 192.168.2.0 255.255.255.0
R2(dhcp-config)#default-router 192.168.2.254
R2(dhcp-config)#dns-server 8.8.8.8
R2(dhcp-config)#lease 2 3 4
R2(config)#ip route 0.0.0.0 0.0.0.0 192.168.3.254
R2(config)#inter fa2/0
R2(config-if)#ip add 192.168.3.1 255.255.255.0
R2(config-if)#no sh
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