CentOS - Aug 2015 - virt-manager with dhcpd running on same machine

If I have dhcpd running on my machine,
and I wish to run virt-manager on the same machine....
How do I do that - its telling me an error for starting the network
and the error is that DHCPD is already running - port in use.

Thanks,

Jerry

On 08/27/2015 01:43 PM, Jerry Geis wrote:
> If I have dhcpd running on my machine,
> and I wish to run virt-manager on the same machine....
> How do I do that - its telling me an error for starting the network
> and the error is that DHCPD is already running - port in use.
I'm mostly sure that if you want to run dhcpd, you just need to turn off 
the "default" network and use bridged networking instead.

https://access.redhat.com/documentation/en-US/Red_Hat_Enterprise_Linux/5/html/Virtualization/sect-Virtualization-Network_Configuration-Bridged_networking_with_libvirt.html
(Hasn't really changed)

Under virt-manager, connect to the local host, then right-click on the 
local host and open "Details."  Switch to the Virtual Networks tab,
and
uncheck the Autostart: On Boot option.

Guests will get dhcp from the bridged network, and will be on the same 
broadcast domain as the KVM host.

Hi,

On Fri, Aug 28, 2015 at 2:13 AM, Jerry Geis <geisj at pagestation.com>
wrote:
> If I have dhcpd running on my machine,
> and I wish to run virt-manager on the same machine....
> How do I do that - its telling me an error for starting the network
> and the error is that DHCPD is already running - port in use.
>
>
Above problem is due to dnsmasq services which is used by virt-manager.

For virt-manager's networking details can be found at below link,
<http://wiki.libvirt.org/page/VirtualNetworking>

Please refer below link to configure dnsmasq it.
<https://wiki.archlinux.org/index.php/Dnsmasq>

--Regards
Ashishkumar S. Yadav

Jerry Geis wrote:
>If I have dhcpd running on my machine,
>and I wish to run virt-manager on the same machine....
>How do I do that - its telling me an error for starting the network
>and the error is that DHCPD is already running - port in use.
It seems there's a problem with dnsmasq, which is used by virt-manager:

   https://bugs.centos.org/view.php?id=7884
   https://bugzilla.redhat.com/show_bug.cgi?id=1154953

The workaround mentioned in the bug reports is to downgrade dnsmasq
to the version from CentOS 6.5.

Ron