vlan路由配置

vlan虚拟局域网，分割广播域

在此拓补图的基础上实现全网可达，过程性在代码中解释，只演示r3：

创建环回，对接口下放ip
[r3]interface LoopBack 0
[r3-LoopBack0]ip address 3.3.3.3 32
[r3]interface g0/0/0
[r3-GigabitEthernet0/0/0]ip address 23.1.1.2 24

创建虚拟子接口
[r3]interface g0/0/1.1
[r3-GigabitEthernet0/0/1.1]ip address 192.168.1.1 24
[r3]interface g0/0/1.2
[r3-GigabitEthernet0/0/1.2]ip address 192.168.2.1 24

开启dhcp配置，动态下放ip
[r3]dhcp enable 
[r3]ip pool 1
[r3-ip-pool-1]network 192.168.1.0 mask 255.255.255.0
[r3-ip-pool-1]gateway-list 192.168.1.1	
[r3-ip-pool-1]dns-list 8.8.8.8
[r3]ip pool 2	
[r3-ip-pool-2]network 192.168.2.0 mask 255.255.255.0	
[r3-ip-pool-2]gateway-list 192.168.2.1 
[r3-ip-pool-2]dns-list 8.8.8.8

调用虚拟子接口
[r3]interface g0/0/1.1
[r3-GigabitEthernet0/0/1.1]dot1q termination vid 2
[r3-GigabitEthernet0/0/1.1]arp broadcast enable 	
[r3-GigabitEthernet0/0/1.1]dhcp select global 
[r3]interface g0/0/1.2
[r3-GigabitEthernet0/0/1.2]dot1q termination vid 3
[r3-GigabitEthernet0/0/1.2]arp broadcast enable 
[r3-GigabitEthernet0/0/1.2]dhcp select global 

开启ospf协议
[r3]ospf 100 router-id 3.3.3.3
[r3-ospf-100-area-0.0.0.0]network 0.0.0.0 255.255.255.255

交换机只演示sw2：

创建vlan
[sw2]vlan batch 2 3

划分vlan并改变接口类型
[sw2]interface e0/0/2
[sw2-Ethernet0/0/2]port link-type access 
[sw2-Ethernet0/0/2]port default vlan 2
[sw2]interface e0/0/3
[sw2-Ethernet0/0/3]port link-type access 
[sw2-Ethernet0/0/3]port default vlan 3

创建trunk，改为所有vlan可通过
[sw2]interface e0/0/1
[sw2-Ethernet0/0/1]port link-type trunk 
[sw2-Ethernet0/0/1]port trunk allow-pass vlan all

以上便配置完成，来看一下结果：

 到此，实验结束~