# Specifying a multicast MAC address to be allowed to flood all VLANs

Use the following procedure to allow particular unknown multicast packets to be flooded on all switch VLANs.

## Procedure steps

1. From the navigation tree, double-click VLAN.

2. In the VLAN tree, double-click VLANs.

3. In the work area, click the MAC Multicast Filter Table tab.

4. In the toolbar, click Insert.

5. Type the VLAN ID to flood in the AllowedAddressVLANId field.

6. Type the MAC address to flood in the AllowedAddressMacAddr field.

7. Click Insert.

## Variable definitions

The following table describes the fields of the MAC Multicast Filter Table tab.

Field | Definition
--- | ---
AllowedAddressVLANId | Indicates the allowed VLAN ID.
AllowedAddressMacAddr | Indicates the allowed MAC address.