Configuring the MAC address controls for a virtual Ethernet adapter

By using the Hardware Management Console (HMC), you can configure the MAC address controls of a virtual Ethernet adapter of a logical partition during logical partition creation, during partition profile modification, or when dynamically adding a virtual Ethernet adapter. You can also specify controls to MAC address overrides that are specified at the operating-system level.

1. In the navigation pane, open Systems Management > Servers, and click the system on which the logical partition is located.
2. In the work pane, select the logical partition on which you want to configure the virtual Ethernet adapter, click the Tasks button, and click Dynamic Partitioning > Virtual Adapters.
3. In the work pane, select the Ethernet Adapter to be edited, click Actions > Add.
4. Click the Advanced tab.
   • If the Override check box is not selected, then Auto-Assigned is displayed in the Default MAC Address field.
   • If the Override check box is selected, type the MAC address for the virtual Ethernet adapter in the Custom MAC Address field.
5. Allow all or deny all operating-system-defined MAC addresses by selecting from Permissions > MAC Address Restrictions.
6. To specify allowable operating-system-defined MAC addresses, select Specify Allowable O/S Defined MAC Addresses. Type the allowed MAC address in the Allowed MAC Address field and click Add.
7. To remove a specified operating-system-defined MAC addresses from the Allowed MAC Address list, select the MAC address that you want to remove from the list and click Remove.
8. Click OK.