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qianyiPC1及PC2的PVID分别为8,9;SW2的g0/0/2口的PVID为10;通过设置Hybrid的Tag list及Untag list来实现R1分别与PC1和PC2通信,但PC1与PC2之间不能通信;(抓包验证来回流量所携带的Tag). 拓扑: R1配置: <Huawei>sy Enter system view, return user view with Ctrl+Z. [Huawei]sy R1 [R1]int g0/0/0 [R1-GigabitEthernet0/0/0]ip address 10.1.10.3 24 SW1配置: <Huawei>sy Enter system view, return user view with Ctrl+Z. [Huawei]sy SW1 [SW1]v b 8 to 10 //创建vlan 8 9 10 Info: This operation may take a few seconds. Please wait for a moment...done. [SW1]int g0/0/1 [SW1-GigabitEthernet0/0/1]p l h [SW1-GigabitEthernet0/0/1]p h p v 8 //创建pvid 8 [SW1-GigabitEthernet0/0/1]p h u v 8 10 //0/0/1端口剥离tag 8和10 [SW1-GigabitEthernet0/0/1]int g 0/0/2 [SW1-GigabitEthernet0/0/2]p h p v 9 //创建pvid 9 [SW1-GigabitEthernet0/0/2]p h u v 9 10 //0/0/2端口剥离tag 9和10 [SW1-GigabitEthernet0/0/2]int g0/0/3 [SW1-GigabitEthernet0/0/3]p h t v 8 to 10 //和SW2发送数据时打上tag 8 9 10 SW2配置: <Huawei> <Huawei>sy Enter system view, return user view with Ctrl+Z. [Huawei]sy SW2 [SW2]v b 8 to 10 //创建vlan 8 9 10 Info: This operation may take a few seconds. Please wait for a moment...done. [SW2] int g0/0/1 [SW2-GigabitEthernet0/0/1]p h t v 8 to 10 //接受数据时打上tag 8 9 10 [SW2-GigabitEthernet0/0/1]int g0/0/2 [SW2-GigabitEthernet0/0/2]p h p v 10 //创建pvid 10 [SW2-GigabitEthernet0/0/2]p h u v 8 to 10 //R1接受和发送数据时剥离tag 8 9 10 PC1与R1/PC2通信: PC2与R1通信: 抓取报文: 分析:PC1发送数据到达SW1时,PVID为8,而R1回复时,PVID为10,所以剥离的tag为8和10,PC2同理,PVID为9,所以剥离的tag为9和10;SW1和SW2之间连接是trunk模式,经过的数据需要打上tag,查看tag列表时,存在对应的tag并转发数据,当数据发送到R1上时,则需剥离掉tag8、9、10,所以PC1/PC2可以与R1通信,而PC1与PC2之间没有相应的Untag列表,则无法进行通信.\ 更多技术文档加v:qyt3378266435领取
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