TP-Link T2500G-10MPS T2500G-10MPSUN V1 Configuration Guide - Page 220
B and Laptop B. Server A is in VLAN 10 while Server B is in VLAN 20. It is required
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Configuring MAC VLAN Overview 1 Overview VLAN is generally divided by ports. This way of division is simple but isn't suitable for those networks that require frequent topology changes. With the popularity of mobile office, a terminal device may access the switch via different ports. For example, a terminal device that accessed the switch via port 1 last time may change to port 2 this time. If port 1 and port 2 belong to different VLANs, the user has to re-configure the switch to access the original VLAN. Using MAC VLAN can free the user from such a problem. It divides VLANs based on the MAC addresses of terminal devices. In this way, terminal devices always belong to their original VLANs even when their access ports change. The figure below shows a common application scenario of MAC VLAN. Figure 1-1 Common Application Scenario of MAC VLAN Server A VLAN 10 Server B VLAN 20 Switch 1 Switch 3 Switch 2 Meeting Room 1 Laptop A Meeting Room 2 Laptop B Two departments share all the meeting rooms in the company, but use different servers and laptops. Department A uses Server A and Laptop A, while Department B uses Server B and Laptop B. Server A is in VLAN 10 while Server B is in VLAN 20. It is required that Laptop A can only access Server A and Laptop B can only access Server B, no matter which meeting room the laptops are being used in. To meet this requirement, simply bind the MAC addresses of the laptops to the corresponding VLANs respectively. In this way, the MAC address rather than the access port determines the VLAN each laptop joins. Each laptop can access only the server in the VLAN it joins. Configuration Guide 193
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