virtio mac address captial or smale letters

Apr 19, 2023
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Hi

I upgraded my proxmox server from 7 to 8 and noticed that the network is not working of my vm.

- VM's without VLAN tag were working
- I had 3 “identical” VM's with VLAN tags 2 where working 1 not.

I searched for the differences ... the only thing I found was that the working VM's had small letters in the MAC address and the not working one Capital...
I change the letters in the vm.conf file and the network was working ...

I checked the other files and Capital letters are the default on 7 and 8... I don't now where the small letters are coming from ...

any ideas about that?

Code:
< name: ceph-test1
< net0: virtio=AE:16:44:28:3A:32,bridge=vmbr0,firewall=1,tag=102
---
> name: ceph-test2
> net0: virtio=ae:16:44:28:3a:33,bridge=vmbr0,firewall=1,tag=102
 

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