MAC of the virtual machine in conflict

[desadi10]

Hello.

I created replication jobs in Veeam, but, when i open the vCenter Server, i realise that all virtual machine which are replication jobs, have the same issue:

" MAC of the virtual machine in conflict"

How can i do to be able to resolve this problem?

Thanks so much.

[admin]

if the virtual machine's mac address is in automatic mode, there are some situations where the virtual machine's mac address can change.

• When a virtual machine is powered on again, it might acquire a different MAC address.
• The MAC address changes on the virtual NIC during the hardware (version) upgrade.
• Every time the virtual machine is migrated (vMotion or Storage vMotion)
• When a virtual machine is cloned, the network adapter(s) are given new MAC addresses.

http://pubs.vmware.com/vsphere-55/index.jsp?topic=%2Fcom.vmware.vsphere.troubleshooting.doc%2FGUID-8...

VMware KB: Virtual machine MAC address conflicts or have a duplicate MAC Address when creating a vir...

Hope above article help you to resolve the  problem and understand about issue .

[rcporto · Accepted solution]

This is the expected behavior since the replica is the exact same copy of the source virtual machine, if you don't want those alarms, you can disable them. See the following Veeam KB article for details: KB1669: "VM MAC address conflict" and "VM instance UUID conflict" alarms

[desadi10]

I solved the problem with this answer.

Thanks so much.

[JrVsphereNinja]

I'm also getting these exact errors but for Surebackup jobs. Is this also normal for surebackup jobs? Because from my understanding, all VMs in surebackup should be in an isolated network.