On Thu, Jan 17, 2008 at 08:27:01PM -0700, Dan Magenheimer wrote:
> > On Thu, Jan 17, 2008 at 03:35:02PM +0000, Ian Jackson wrote:
> > > Dan Magenheimer writes ("RE: [Xen-devel] [PATCH] example
> > and default IP addresses"):
> > > > In the patch to network-nat, I see that you are replacing
> > the 10.0.0.0/16
> > > > usage with 192.0.2.0/24. Actually, vif-nat has a dependency on it
> > > > being 10.0.0.0/8(!), at least if more than 256 domains
> > are launched (not
> > > > necessarily simultaneously, just sequentially created and
> > destroyed).
> > > > In vif-nat ip_from_dom, IP's are created as 10.x.y.z for
> > vifw.z, where
> > > > x*256+y==w.
> > >
> > > Firstly, I think it's important to note that network-nat and vif-nat
> > > are pretty ropey. Anyone who is using them will almost
> > certainly have
> > > had to adjust them to local conditions anyway. For example, these
> > > scripts attempt to find and edit your local dhcp server
> > configuration
> > > file !
> >
> > FYI, for anyone using libvirt we recommend only using network-bridge
> > and vif-bridge. libvirt then provides a 'virtual network' capability
> > which allows you to define multiple local networks either completely
> > isolated from the physical network, or connected via NAT.
> > This effectively
> > provides same functionality as vif-nat/network-nat, but
> > without requiring
> > the admin to modify shell scripts.
>
> Hi Dan --
>
> Does this handle DHCP as well? If so, can you provide a pointer to more
> information?
Yes, it runs a 'dnsmasq' daemon per virtual network to provide DNS and
DHCP services. Each virtual network is setup as a bridge device, so you
can have many on a single machine, each with independant DHCP services
The original design doc is
http://www.gnome.org/~markmc/virtual-networking.html
And UI screenshots are
http://virt-manager.org/screenshots/networking.html
Regards,
Dan.
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