[libvirt] dnsmasq didn't work as except

[Guannan Ren]

On 07/10/2012 09:55 PM, taget at linux.vnet.ibm.com wrote:
>
> hi all
>   The vm created by libvirtd can not acquire a ip from dnsmasq.
>
> nobody   14203     1  0 21:31 ?        00:00:00 /usr/sbin/dnsmasq 
> --strict-order --bind-interfaces 
> --pid-file=/var/run/libvirt/network/default.pid --conf-file= 
> --except-interface lo --listen-address 192.168.122.1 --dhcp-range 
> 192.168.122.2,192.168.122.254 
> --dhcp-leasefile=/var/lib/libvirt/dnsmasq/default.leases 
> --dhcp-lease-max=253 --dhcp-no-override
>
> note that --conf-file= is empty ,is there any thing I missing?


       Options for dnsmasq can be set either on the command line when 
starting dnsmasq,
       or in its configuration file, /etc/dnsmasq.conf(if it exists)
       --config-file=<empty> means explicitly not to accept any 
configure file.

       what kind of OS tht vm is.  The possible way for vm to do is to 
release old lease and
       get a new lease from dnsmasq again
       linux guest: dhclient -r, then dhclient <ethX>
       windows guest:  ipconfig /release, then ipconfig /renew

       Guannan Ren