Thank you Michal! I found the file. Do you mean there is a libvirt API for this? I did not find `virsh net-dhcp-leases default` on my KVM host. On 9/15/14 4:02 AM, "Michal Privoznik" <mprivozn@redhat.com> wrote:

On 12.09.2014 17:46, Jianfeng Tang wrote:

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Hi,

I plan to use KVM internal network 'default' and grep dhcp log to figure out the IP address that assigned to my VM.

I know I can configure static ip but I like to assign ip dynamically to avoid mgmt cost.

Does anyone know where the dhcp log is? My KVM host is running Ubuntu Raring (13.04). It does not have file /var/log/daemon.log as some online doc mentioned.

Thanks, ~Jianfeng

Hi,

this is the area that is somewhat actively worked on.

The leases file is located under /var/lib/libvirt/dnsmasq/default.leases, however I'd strongly recommend using libvirt API for that:

virsh net-dhcp-leases default

BTW: it's not KVM's default network. The network is created and managed by libvirt ;-)

Michal