How to configure MAC filter to block unwanted traffic

Zyxel小編 Lucious
Zyxel小編 Lucious Posts: 279
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 Zyxel Employee
edited July 1 in Network Security

The example shows administrators how to configure MAC filter to block unwanted traffic. In this example, Switch-1 will block traffic based on which device sends the packet or which device receives the packet.

Note:

All network IP addresses and subnet masks are used as examples in this article. Please replace them with your actual network IP addresses and subnet masks.


1. Configure Switch-1 

Enter web GUI and go to Menu > Advanced Application > Filtering. Check the “Active” box and set the filter Name. Choose the Action as “Discard source”. Key in the MAC you want to block and the VID. Click “Add”.

Note:

Use Discard source to drop traffic sent by the device with the configured MAC entry.

Use Discard destination to drop traffic sent to the device with the configured MAC entry.


2. Test the Result

2-1. PC-1 (with MAC address 00:1E:33:27:04:93) fails to ping Server. 

2-2. PC-2 can ping Server successfully.


3. What Could Go Wrong

The MAC address set on Switch-1 should be identical to the MAC address of PC-1 so that the traffic can be blocked successfully.