[ovirt-users] R: R: R: R: PXE boot of a VM on vdsm don't read DHCP offer

[Fabian Deutsch]

----- Original Message -----
> Thanks for answering, my considerations below.

…

> > I've observed this behavior in bug
> > https://bugzilla.redhat.com/show_bug.cgi?id=1230638
> > We also removed all firewall rules, checked iPXE and I also saw the
> > requests
> > going out, but no replies getting to the VM.
> > But here it sounds like it isn't specific to bonds.
> > After all I did not find the solution yet.
> 
> In our config, I can see the DHCP offer until the hypervisor bridge interface
> toward vm

Just to make sure, is your setup:

NIC -- bridge -- VM?

Or is a bond involved?

> >
> > It is probably a good idea to install the oS with a static IP, and then
> > switch to dhcp to then use tcpdump inside the vm to see what is reaching
> > the inside.
> 
> Already done. Vm do not acquire the IP address and, on the vm side, tcpdump
> shows only requests.
> At the same time, the DHCP offer s detected on the bridge if of the
> hypervisor.
> 
> With static IP, vm works fine.

Yes, it only seems to be around dhcp.

If you don't have a bond involved, then please reopen the bug abaove, and we try to find
someone to look at it.

- fabian