I'm aware that VirtualBox assigns the same IP to different VMs (by default 10.0.2.15), however I have a case where I have a VM with a single vNIC, and a Linux namespace inside the VM attempts to get an IP from DHCP, and it gets the same IP from VirtualBox. So both eth0 and the other interface inside my network namespace have the same IP address, which is obviously wrong.
Is there a way to have VirtualBox correctly return different DHCP responses or is it a limitation of VirtualBox that it doesn't correctly handle DHCP requests coming from different source MAC addresses from the same VM?