Incompatible Interface Type on Virtual Appliance

The system will not start the update if it detects an incompatible interface type on your Virtual Appliance (VA). You will see a notification about this issue. To resolve this issue, you must replace the VA interfaces with either:

• VMXNET3 type for VMware systems
• virtio type for KVM systems

The following steps describe how to replace interfaces in VMware. Use similar steps for KVM:

1. Shut down the appliance.
2. Log in to VMware vSphere.
3. Edit the settings of the Flowmon virtual machine.
4. For each incompatible interface of the e1000 type, note the current configuration, especially:
   • Connected network
   • MAC address
   • Port ID
   • And any other information that you have changed
5. Remove all incompatible interfaces of the e1000 type.
6. Create new interfaces of type VMXNET3 and restore the rest of their configuration. Ensure to keep their original MAC address.
   • If VMXNET3 is not listed, you must change Guest OS Family to Other and Guest OS Version to Other (64-bit) in VM Options - General Options.
7. Save the new settings.
8. Edit the virtual machine settings again to restore the original Port IDs. This step helps restore virtual switch connections.
   • The system might not allow you to set the original Port ID if another interface is already using that value. If this happens, proceed to the next step.
9. If needed, manually restore virtual switch connections. For detailed instructions, refer to the following page: Flowmon for VMware.
10. Start the appliance.
11. Verify that your monitoring ports receive the correct network traffic.

Interface Index Assignment

Based on your VM interface configuration, these scenarios can occur:

• If all previous appliance interfaces were of the same type, the system restores ifIndex assignment during the initial boot in Flowmon 12.5.
• If the appliance has interfaces of more than one type, interface replacement and MAC address reassignment do not fully resolve the issue. The interface order used for ifIndex values depends on both the MAC address and interface type. While ifIndex values might change after interface recreation, the system restores the original values during the update to Flowmon 13.

If the automatic restore fails, you can manually configure ifIndex values for monitoring ports in the Flowmon 13 user interface after the update. For configuration instructions, refer to the following section: Monitoring ports.