On 04/07/2014 12:33 AM, Rafael Weingartner wrote:
Hi folks, I was wondering how a system vm gets an IP address. I know they are the first things that CS needs in order to start up others VMs, so when they start there is no virtual router to assign IP addresses via DHCP.
Via a local virtio socket from the hypervisor in KVM mode. The VM boots and via that local serial socket it gets the IP-address.
I also noticed that on the physical hosts with the VM.Start command CS sends some extra data that includes the IPs that the VM should get. However, I have no idea how it actually gets those parameters and set its IP.
The management server sends this information to the KVM agent. User Instances get the IP address via DHCP from the VR, System VMs via the local serial socket.
Wido
Does anyone here know how it works?
