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
Displaying and configuring MAC address entries
Select Network > MAC from the navigation tree.
The MAC tab automatically appears, which shows all the MAC address entries on the device.
Figure 153 The MAC tab
Click Add in the bottom to enter the page for creating MAC address entries.
Figure 154 Creating a MAC address entry
Configure a MAC address entry as described in
Table 58 Configuration items
Set the MAC address to be added.
Set the type of the MAC address entry:
Static—Static MAC address entries that never age out.
Dynamic—Dynamic MAC address entries that will age out.
Blackhole—Blackhole MAC address entries that never age out.
The MAC tab (see
Config static—Static MAC address entries manually configured by the users.
Blackhole—Blackhole MAC address entries.
Learned—Dynamic MAC address entries learned by the device.
Other—Other types of MAC address entries.
Set the ID of the VLAN to which the MAC address belongs.
153) displays the following types of MAC address entries: