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Types of MAC address entries
A MAC address table can contain the following types of entries:
• Static entries—Manually added and never age out.
• Dynamic entries—Manually added or dynamically learned, and might age out.
• Blackhole entries—Manually configured and never age out. They are configured for filtering out
frames with specific source or destination MAC addresses. For example, to block all frames
destined for a specific user for security concerns, you can configure the MAC address of this user
as a blackhole MAC address entry.
A static or blackhole MAC address entry can overwrite a dynamic MAC address entry, but not vice
versa.
Displaying and configuring MAC address entries
1. Select Network > MAC from the navigation tree.
The MAC tab automatically appears, which shows all the MAC address entries on the device.
Figure 169 The MAC tab
2. Click Add in the bottom to enter the page for creating MAC address entries.
Figure 170 Creating a MAC address entry
3. Configure a MAC address entry as described in Table 52.
4. Click Apply.
Table 52 Configuration items
Item Descri
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