VLAN互通

VLAN互通2种方法

单臂路由实现VLAN互通

TOP图

配置-LSW

#创建VLAN
[LSW1]vlan batch 10 20
#更改接口类型，将VLAN划分至接口
[LSW1-GigabitEthernet0/0/1]port link-type access
[LSW1-GigabitEthernet0/0/1]port default vlan 10
[LSW1-GigabitEthernet0/0/2]port link-type access
[LSW1-GigabitEthernet0/0/2]port default vlan 20
#修改接口类型，放行VLAN
[LSW1-GigabitEthernet0/0/3]port link-type trunk
[LSW1-GigabitEthernet0/0/3]port trunk allow-pass vlan 10 20

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配置-Router1

#进入逻辑接口，配置IP地址
[R1]int GigabitEthernet 0/0/0.10	
[R1-GigabitEthernet0/0/0.10]ip address 192.168.1.254 24
#去掉数据包的VLAN10标签，数据出去打上TAG10标签
[R1-GigabitEthernet0/0/0.10]dot1q termination vid 10
#开启ARP广播
[R1-GigabitEthernet0/0/0.10]arp broadcast enable
[R1-GigabitEthernet0/0/0.10]int g0/0/0.20
[R1-GigabitEthernet0/0/0.20]dot1q termination vid 20
[R1-GigabitEthernet0/0/0.20]arp broadcast enable
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测试：

PC1

PC>ping 192.168.2.1

Ping 192.168.2.1: 32 data bytes, Press Ctrl_C to break
Request timeout!
Request timeout!
From 192.168.2.1: bytes=32 seq=3 ttl=127 time=78 ms
From 192.168.2.1: bytes=32 seq=4 ttl=127 time=78 ms
From 192.168.2.1: bytes=32 seq=5 ttl=127 time=78 ms

--- 192.168.2.1 ping statistics ---
  5 packet(s) transmitted
  3 packet(s) received
  40.00% packet loss
  round-trip min/avg/max = 0/78/78 ms

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PC2

PC>ping 192.168.1.1

Ping 192.168.1.1: 32 data bytes, Press Ctrl_C to break
From 192.168.1.1: bytes=32 seq=1 ttl=127 time=63 ms
From 192.168.1.1: bytes=32 seq=2 ttl=127 time=94 ms
From 192.168.1.1: bytes=32 seq=3 ttl=127 time=78 ms
From 192.168.1.1: bytes=32 seq=4 ttl=127 time=63 ms
From 192.168.1.1: bytes=32 seq=5 ttl=127 time=78 ms

--- 192.168.1.1 ping statistics ---
  5 packet(s) transmitted
  5 packet(s) received
  0.00% packet loss
  round-trip min/avg/max = 63/75/94 ms

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VLANIF(更受欢迎)

在上面实验基础上只需要将路由器更换为交换机再配置即可。

TOP图

LSW2配置

[LSW2]vlan batch 10 20
[LSW2-Vlanif10]ip address 192.168.1.254 24
[LSW2]interface Vlanif 20
[LSW2-Vlanif20]ip address 192.168.2.254 24
[LSW2]interface GigabitEthernet 0/0/1
[LSW2-GigabitEthernet0/0/1]port link-type trunk
[LSW2-GigabitEthernet0/0/1]port trunk allow-pass vlan 10 20
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测试

PC1

PC>ping 192.168.2.1

Ping 192.168.2.1: 32 data bytes, Press Ctrl_C to break
Request timeout!
From 192.168.2.1: bytes=32 seq=2 ttl=127 time=94 ms
From 192.168.2.1: bytes=32 seq=3 ttl=127 time=94 ms
From 192.168.2.1: bytes=32 seq=4 ttl=127 time=94 ms
From 192.168.2.1: bytes=32 seq=5 ttl=127 time=94 ms

--- 192.168.2.1 ping statistics ---
  5 packet(s) transmitted
  4 packet(s) received
  20.00% packet loss
  round-trip min/avg/max = 0/94/94 ms

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