[libvirt-users] Can libvirt set or change the IP address of guest machine
To Whom It May Concern: I use libvirt over one month, I need a function to set the ip address of the guest machine. One can change the guest ip address will be a great appreciation. However, I did not find such a feature in the process of learning libvirt. The purpose of this mail is to ask the experts whether libvirt provide such a feature. If there is no, how can I implement such functionality. Additionally, I already know NAT based network and Routed network can use DHCP, but I want to use an existing host bridge. Best Wishes Harold
On 18.03.2012 03:24, Harold Fei wrote:
To Whom It May Concern:
I use libvirt over one month, I need a function to set the ip address of the guest machine. One can change the guest ip address will be a great appreciation. However, I did not find such a feature in the process of learning libvirt. The purpose of this mail is to ask the experts whether libvirt provide such a feature. If there is no, how can I implement such functionality.
You can create static leases based on interfaces MACs: http://www.redhat.com/archives/libvir-list/2009-February/msg00373.html However, libvirt lacks API for changing guest's interface IP on the fly since qemu-ga lacks such feature too. Therefore when implementing this functionality - qemu-ga part needs to be done firstly so you can build on stable interface. This may be your inspiration: http://lists.gnu.org/archive/html/qemu-devel/2012-02/msg04173.html
Additionally, I already know NAT based network and Routed network can use DHCP, but I want to use an existing host bridge.
I think this is what you are looking for: http://libvirt.org/formatnetwork.html#examplesBridge Michal
On Mon, Mar 19, 2012 at 04:26:07PM +0100, Michal Privoznik wrote:
On 18.03.2012 03:24, Harold Fei wrote:
To Whom It May Concern:
I use libvirt over one month, I need a function to set the ip address of the guest machine. One can change the guest ip address will be a great appreciation. However, I did not find such a feature in the process of learning libvirt. The purpose of this mail is to ask the experts whether libvirt provide such a feature. If there is no, how can I implement such functionality.
You can create static leases based on interfaces MACs:
http://www.redhat.com/archives/libvir-list/2009-February/msg00373.html
However, libvirt lacks API for changing guest's interface IP on the fly since qemu-ga lacks such feature too. Therefore when implementing this functionality - qemu-ga part needs to be done firstly so you can build on stable interface. This may be your inspiration:
http://lists.gnu.org/archive/html/qemu-devel/2012-02/msg04173.html
I'm not entirely convinced this is in scope for libvirt. Once you start talking about configuring guest networking, IMHO, this has become a general "OS management" problem, for which there must be countless existing solutiuons. Just deployment some existing agent to handle this kind of thing. Regards, Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :|
participants (3)
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Daniel P. Berrange -
Harold Fei -
Michal Privoznik