Hello list

I am wondering if anyone has tried this before? I am trying to consolidate my lab to an oVirt cluster which consists of oVirt (4.3.8) and 2 KVM hypervisors (CentOS 7.7.). Among other things, one of my efforts is a small ESXi + vCenter lab. In addition, I have a standalone KVM hypervisor. I can run nested ESXi 6.7 on top of the standalone KVM hypervisor (with nested KVM enabled) without any problem. However, on top of oVirt-controlled KVMs I have some issues. The hypervisors have nested kvm support enabled via vdsm hooks. qemu emulates e1000 for a nested ESXi vm. ESXi installation process goes smooth but as soon as I enable management network and restart it, the nested ESXi cannot communicate with the outside world (DNS ping cannot pass). Also https connection to VMWare ESXi web gui and ping to the ESXi also fail. I noticed on my client machine, that ARP requests are incomplete for ESXI as well.  Within oVirt, I see no packet drops in "Network interface" tab for the nested ESXi.