On Fri, Jan 16, 2009 at 12:44:21PM +0000, Richard W.M. Jones wrote: > On Fri, Jan 16, 2009 at 12:41:42PM +0000, Daniel P. Berrange wrote: > > On Fri, Jan 16, 2009 at 12:35:55PM +0000, Richard W.M. Jones wrote: > > > On Fri, Jan 16, 2009 at 01:13:18AM +0000, David Lutterkort wrote: > > > > For certain applications, we want libvirt to be able to configure host > > > > network interfaces in a variety of ways; currently, we are most > > > > interested in teaching libvirt how to set up ordinary ethernet > > > > interfaces, bridges, bonding and vlan's. > > > [...] > > > > 3. Implementation > > > > ================= > > > > > > > > Configuring network interfaces is highly OS and OS-variant/distro > > > > dependant. There are at least two different ways how libvirt can go about > > > > modifying the host to create interfaces: > > > > > > > > 1. Modify the system's network setup scripts (ifcfg-XXX on RH) > > > > > > > > 2. Directly use the system's network utilities like ifconfig > > > > > > > > 3. Rely on NetworkManager (not an option right now, as NM doesn't know > > > > about bridges and the like) > > > > > > I must be missing something here ... how can libvirt modify stuff > > > inside the guest? > > > > It can't - this is all about configuring & managing networking on the > > host OS. > > Well OK then, how does the information get passed into the guest? There isn't anything to pass into the guest . This is about how to configure host network interfaces for bridging, bonding, vlans, etc eg, So you can take an host with a NIC, eth0, put that NIC into a bridge, br0, and thus now have the ability to create guests using a bridged networking configuration. As it currently stands admins have to manually configure bridges in their host by editing /etc/sysconfig/networking-scripts/ifcfg-eth0 This proposal is to provide an API for doing this in the host instead of requiring that admin do it manually ahead of time. Regards, Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :| -- Libvir-list mailing list Libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list