Step 6 Inthe MAC Security area, do the following to determine whether the server can use different MAC addresses
whensending packetsto the fabricinterconnect:
a) Click the Expand icon to expand the area and display the radio buttons.
b) Click one of the following radio buttons to determine whether forged MAC addresses are allowed or
deniedwhen packets are sent from the server to the fabric interconnect:
•Allow—All server packets are accepted by the fabric interconnect, regardless of the MAC address
associatedwith the packets.
•Deny—After the first packet has been sent to the fabric interconnect, all other packets must use the
sameMAC address or they will be silently rejected by the fabric interconnect. In effect, this option
enablesport securityfor theassociated vNIC.
Ifyou plan to install VMware ESX on the associated server, you must configure the MAC Security to
allowfor the network control policy applied to the default vNIC. If you do not configure MAC Security
forallow, the ESX installation may fail because the MAC security permits only one MAC address while
theinstallation process requires more than one MAC address.
Step 7 ClickOK.
Deleting a Network Control Policy
Procedure
Step 1 Inthe Navigation pane, clickthe LAN tab.
Step 2 Onthe LAN tab, expand LAN >Policies >Organization_Name.
Step 3 Expandthe Network ControlPolicies node.
Step 4 Right-clickthe policy youwant todelete andselect Delete.
Step 5 Ifthe CiscoUCS Manager GUI displaysa confirmationdialog box, click Yes.
Cisco UCS Manager GUI Configuration Guide, Release 2.0
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Configuring Network Control Policies