Re: [libvirt-users] Problem with bridged network configuration
For the record - I figured this out so am sharing the result for posterity:
The issue was that I didn't follow the instructions literally. Since,
once booted, my primary NIC name was "em1" I assumed I had to create an
initscript called ifcfg-em1 rather than ifcfg-eth0 as described in the doc.
Once I renamed that script to ifcfg-eth0 (and changed the DEVICE value
in the file to match), all is well. It does indeed appear to be a timing
issue due to the "Predictable Network Interface Names" feature and when
its NIC name musical chairs dance begins.
I have had more problems due to that one feature than anything else in
recent memory. It is a misnomer if ever there was one. Even the docs
related to it are incorrect (for Fedora 19, creating the symlink
described at
http://www.freedesktop.org/wiki/Software/systemd/PredictableNetworkInterf...
doesn't have the expected result of disabling the feature).
Thanks,
Bob
On 11/12/2013 10:17 AM, Bob Doolittle wrote:
Hi,
When I initially boot my system, it fails to bring up the network.
Once booted, if I run "systemctl restart network.service", or even
stop, wait a while, then start, it starts up fine and all is well.
I'm running Fedora 19 (updated).
I followed the instructions on this page to set up a bridged network:
http://wiki.libvirt.org/page/Networking
I note however that I did *not* have any bridge (for NAT use)
configured initially by default on my system, and followed the
directions on this page to create it:
https://fedoraproject.org/wiki/Getting_started_with_virtualization
I have disabled the NetworkManager service, and created network
initscripts for my em1 and br0 interfaces.
I notice from the systemctl status output, that the network failure is
logged, and only *after* that the br0 interface comes up. So I wonder
if there is some ordering problem in spite of the fact that I have
specified DELAY=0 for br0.
I have included output from the following commands:
systemctl status network.service (initially, when failed to come up)
brctl show
ip link
ip address
Also attached are the network initscripts for my em1 and br0 interfaces.
Any guidance would be much appreciated!
Thanks,
Bob