Once upon a time, P F <pat@patfruth.com> said:
I want to run a VM, which will itself be the KVM host of a number of KVM guests. Each of the guests running in that nested environment will have a vNIC with an IP address on the same subnet as the top-level hypervisor (the ovirt node). In VMware vSphere environments I was able to do this by enabling promiscuous mode and forged transmits on the VMware distributed switch port group, as described in this medium article; https://williamlam.com/2013/11/why-is-promiscuous-mode-forged.html
I've search a number of old threads here on the ovirt list archives. Many refer to vdsm hooks that don't appear to exist any longer in ovirt 4.5.1.
How can I accomplish the same thing in ovirt?
Make a new vNIC profile that allows it. The default profiles use the "vdsm-no-mac-spoofing" filter, which includes the standard "no-mac-spoofing" and "no-arp-mac-spoofing" profiles. You can probably just make a profile with no network filter applied. Then once the profile is created, apply it to the VM NIC(s) in question. -- Chris Adams <cma@cmadams.net>