[TriLUG] Fighting Ubuntu Desktop + KVM + network bridging
hobie at mail.com
Wed Jul 29 00:29:17 EDT 2009
Not really. Both are hypervisors and both have a form of this issue.
You're using a hypervisor configuration tool that is automatically
providing what I need. I'm betting your running RHEL(CentOS) or Fedora.
They're a bit ahead in that area. I'm trying to understand what the
bridge configuration in the /etc/network/interfaces file is supposed to
be doing (not a load of info in the interfaces man page) and the
expectations of the writer in this situation.
-- Thanks though...
Brian McCullough wrote:
> On Tue, Jul 28, 2009 at 10:41:12PM -0400, Jason Herr wrote:
>> Now the actual issue. These virtual machines are worthless if I cannot
>> put them out on our lan and be able to hit their services from my
>> laptop, etc. Unfortunately, the Ubuntu UI only provides for NAT access,
>> so I've tried the old RFTM approach. Well, that's got some interesting
> I'm not going to be much help, because I haven't done anything with KVM,
> but only with Xen. In that environment, you have a very small "shim"
> underneath the kernel, which actually provides the whole virtualized
> environment. Then you have the "Ring 0" or Dom-0 environment, which is
> the "host machine" for all of the child virtual machines. The Dom 0
> machine, in cooperation with the shim, provides network interfaces for
> all of the virtual machines.
> When you bring up Xen, in its Dom 0 form, it may or may not create a
> second interface that you will see when you do "ifconfig" in that
> environment. However, for each child virtual machine, it will add a new
> interface in the Dom 0 environment, as well as a corresponding interface
> in the child environment.
> Each child has a unique IP address, and, if you wish, a unique Ethernet
> MAC address. Normally, those IP addresses will "fit into" your network,
> and be provided either through DHCP or static addressing, depending on
> how your child is configured.
> Was this any help at all?
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