10.18.2. Customizing the MAC pool range

Procedure

1. Edit the HyperConverged CR by running the following command:

   $ oc edit hyperconverged kubevirt-hyperconverged -n openshift-cnv

2. Update the HyperConverged CR to configure the rangeStart and rangeEnd parameters that define your required MAC address range:

   apiVersion: hco.kubevirt.io/v1beta1
   kind: HyperConverged
   metadata:
     name: kubevirt-hyperconverged
   spec:
     kubeMacPoolConfiguration:
       rangeStart: "AA:00:00:00:00:00"
       rangeEnd: "FD:FF:FF:FF:FF:FF"
   # ...

Verification

1. Run the following command and observe the output:

   $ oc get hco kubevirt-hyperconverged -n openshift-cnv -o=jsonpath='{.spec.kubeMacPoolConfiguration}'

   If you have successfully applied the configuration changes, the output shows the new MAC pool range you have configured:

   Example output:

   {
     "rangeStart": "AA:00:00:00:00:00",
     "rangeEnd": "FD:FF:FF:FF:FF:FF"
   }

2. Optional. Create a new VM and run the following command to check the MAC address of the VM’s network interface:

   $ oc get vmi <vm-name> -o=jsonpath='{.status.interfaces[0].macAddress}'

   Example output:

   macAddress: AA:00:00:00:00:04

   If you have successfully applied the configuration changes, the macAddress field in the VM interface is within the range you specified in your kubeMacPoolConfiguration, between the value of rangeStart and rangeEnd.