Re: [libvirt] "static" ip address
On Sat, Aug 2, 2008 at 11:22 PM, Fabian Deutsch <fabian.deutsch(a)gmx.de>wrote:
Hey,
>
> I'm using KVM with the wonderful help of libvir (virsh), on a
> to-be-production-ready server of mine.
>
>
> I would like to be able to choose on a way or another the ip of each
> of my VM. As far as I can understand, the only way to get an IP (from
> a vm point of view) if the dhcp it. But I have no garantee vm1 will
> always get x.x.x.1 Ip adress...
I suppose you are speaking about the NAt-Solution.
Yes. Sorry. My server has 1 public IP address. Host will host an Apache
proxying http services hosted by VMs. VMs will have private IP addresses
(192.168.0.x).
I can not have any other public IP addresses, so bridging is not a solution
(AFAICU)
Nat seems good choice in my case, I think.
Have a look at some bridge-Solution:
http://libvirt.org/formatnetwork.html#examplesRoute
Ok.
You are proposing me to use :
<network>
<name>local</name>
<bridge name="virbr1" />
<forward mode="route" dev="eth1"/>
<ip address="192.168.122.1" netmask="255.255.255.0">
<dhcp>
<range start="192.168.122.2" end="192.168.122.254" />
</dhcp>
</ip>
</network>
I understand this defines a network, where IP address of host in VM-World is
192.168.122.1, and DHCP distributes IP addresses to VMs. Nat is disabled ?
I just don't understand how I can specify that VM1 (with its mac address),
should have .1 IP address. Natting will be automagic ?
I must admit I don't really know how to use routing system, I presume :(
Thanx for your help,
Olivier.
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