Thanks for the reply Laine. My problem is that dnsmasq is masking
dhcpd, xCAT uses dhcpd for PXE stuff. If dnsmasq answer DHCP requests
the PXE boot won' t work. I want to see the logs for ensuring the
dnsmasq is not masking dhcpd.
Regards,
2018-06-18 11:39 GMT-03:00 Laine Stump <laine(a)redhat.com>:
On 06/18/2018 09:16 AM, Daniel. wrote:
> Cool, thanks!! Does it have logs?
Whatever dnsmasq chooses to log, and wherever it chooses to log it. (I
actually looked once to see if there was a way of reducing the amount of
logging, and didn't find much of anything useful.)
If you were planning to learn the current IP address of a particular
guest's interface by looking at the logs, you can instead use the virsh
domifaddr to to that.
>
>
> Cheers
>
> Em 18/06/2018 12:55 AM, "Laine Stump" <laine(a)redhat.com
> <mailto:laine@redhat.com>> escreveu:
>
> On 06/15/2018 06:49 PM, Daniel. wrote:
> > Hi everybody,
> >
> > I'm using libvirt together with xCAT, on the same host, for testing
> > purposes. xCAT install and manages dhcpd. How libvirt interacts with
> > dhcpd? And if doens't how does the dhcp server of libvirt works, plus
> > where I can find information on how to troubleshot it?
>
> libvirt doesn't use dhcpd. It runs a separate instance of dnsmasq for
> each virtual network that is defined within libvirt. Each instance
> listens *only* on the bridge device that was created by libvirt for that
> network. IIfi dhcpd has an option that tells it to listen on all
> interfaces (or to automatically start listening on any new interface
> that is created), you should disable that option so that it doesn't
> attempt to listen for dhcp requests on the bridges created by libvirt.
>
>
--
“If you're going to try, go all the way. Otherwise, don't even start. ..."
Charles Bukowski