Re: [libvirt-users] How libvirt interacts with dhcpd?
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.