[Bug 997978] Re: KVM images lose connectivity with bridged network

[Jonathan Tullett]

I tried building the container this morning using both your file above, and the following:
lxc.network.type=veth
lxc.network.link=br0
lxc.network.flags=up
lxc.network.ipv4=212.XX.239.103/28
lxc.network.name=eth0


# lxc-create -t ubuntu -f lxc.conf -n lxc1
debootstrap is /usr/sbin/debootstrap
Checking cache download in /var/cache/lxc/precise/rootfs-amd64 ... 
Copy /var/cache/lxc/precise/rootfs-amd64 to /var/lib/lxc/lxc1/rootfs ... 
Copying rootfs to /var/lib/lxc/lxc1/rootfs ...

##
# The default user is 'ubuntu' with password 'ubuntu'!
# Use the 'sudo' command to run tasks as root in the container.
##

'ubuntu' template installed
'lxc1' created

But it fails to start:

# lxc-start -n lxc1
lxc-start: failed to spawn 'lxc1'

/var/log/syslog shows:
May 12 09:47:12 dom0 kernel: [ 1107.903216] device vethHzjri2 entered promiscuous mode
May 12 09:47:12 dom0 kernel: [ 1107.905151] ADDRCONF(NETDEV_UP): vethHzjri2: link is not ready

ifconfig shows a load of virtual devices and brctl shows:

# brctl show
bridge name	bridge id		STP enabled	interfaces
br0		8000.0649d9be1876	no		eth0
							veth4bkC47
							vethHzjri2
							vethNBwjzP
							vethZo4vwt
							vethhzluzM
							vethidQWcJ
							vethmtoeDY
							vethuPj7Qk
							vethuxztRp
							vnet1

(I've tried starting the contain a few times).

I'm happy to debug this with you, but lxc isn't software I'm familiar
with, unfortunately. Any ideas?

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Title:
  KVM images lose connectivity with bridged network

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