[Lxc-users] Networking fails sporadically in containers on ubuntu server 12.10

[Hans Feldt]

Could it be the issue described in 
http://backreference.org/2010/07/28/linux-bridge-mac-addresses-and-dynamic-ports/ 
?

I encountered that one and solved it by creating a dummy interface with 
the same life cycle as the bridge.

thanks,
Hans

On 04/01/2013 02:34 PM, Serge Hallyn wrote:
> Quoting David Parks (davidparks21 at yahoo.com):
>> davidparks21 at hostOS:~$ arp -a
>>
>> ? (10.1.0.4) at c6:63:bb:a7:d8:60 [ether] on br0
>>
>> ? (10.1.0.2) at 52:54:00:12:35:02 [ether] on br0
>>
>> ? (10.1.0.45) at 32:8c:fc:c1:7f:e5 [ether] on br0
>
> Can you set the macaddr on your virtualbox nic to something
> lower, like something starting with 22: ?
>
> 32: sounds really low for a veth peer nic, I'm surprised - mine are
> always fe:.  In fact, looking at
> src/lxc/conf.c:setup_private_host_hw_addr(), it makes sure to set
> 0xfe in the first two bytes.  So why are you getting 32: ?  Hmmm.
>
> Could you also try adding '-l info -o lxc.debug' to your lxc-start
> command on a failing container, and send the resulting lxc.debug
> file?  We're looking for output from:
>
>          DEBUG("mac address of host interface '%s' changed to private "
> 	              "%02x:%02x:%02x:%02x:%02x:%02x", veth1,
>
> thanks,
> -serge
>
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