To modify the NIC resource in the application service group

1. From the VCS Cluster Explorer, in the left pane, select the application service group.
2. In the right pane, select the Resources tab.
3. In the Resources tab display area, right-click the NIC resource and click View > Properties View.
4. In the Properties View window, locate the MACAddress attribute and click the edit icon.
5. In the Edit Attribute window, edit the attribute by performing the following actions sequentially:
   

   • Select Per System.

   • From the dropdown list, select the node in the RDC primary zone.

   • In the Scalar Value field, enter the physical address (MAC address) of the network interface card (NIC) to be monitored on the primary zone system.

     Use the ipconfig -all command to retrieve the physical address.

   • From the dropdown list, select the node in the RDC secondary zone.

   • In the Scalar Value field, enter the physical address (MAC address) of the network interface card (NIC) to be monitored on the secondary zone system.

     Use the ipconfig -all command to retrieve the physical address.

   • Click OK.

6. In the Properties View window, verify that the MACAddress attribute for the nodes in the primary and secondary zone are different.
7. Close the Properties View window.