[Openstack] Nova-network Bug??

Georgios Dimitrakakis giorgis at acmac.uoc.gr
Wed Jun 4 09:22:06 UTC 2014


 Can someone confirm if this is a bug or not?

 Brand new Icehouse installation with the same behavior!

 Best,

 G.

 On Sat, 31 May 2014 21:53:09 +0300, Georgios Dimitrakakis wrote:
> It seems that the chains
>
> - Chain nova-network-OUTPUT
> - Chain nova-network-POSTROUTING
> - Chain nova-network-PREROUTING
> - Chain nova-network-float-snat
>
> are not populated correctly every time I start an instance.
>
> Any ideas why this is happening?
>
>
> Best,
>
>
> G.
>
>
> On Sat, 31 May 2014 14:09:13 +0300, Georgios Dimitrakakis wrote:
>> Hi!
>>
>> For some days now I am trying to figure out what is the problem and
>> IceHouse instances don't get internet access (you can have a look
>> here:
>> 
>> https://www.mail-archive.com/openstack@lists.openstack.org/msg07138.html
>> )
>>
>> Today I 've discovered that I have to put a NAT-firewall rule in the
>> compute node every time I start an instance. The rule that is needed
>> is:
>>
>> iptables -t nat -I POSTROUTING -o  eth0 -j MASQUERADE
>>
>>
>> If I put the rule and then I start an instance then the instance
>> doesn't have internet connectivity unless I put the rule again. The
>> same applies if I start a second instance! All of them are loosing
>> internet-connectivity. Putting the rule again and all of them are
>> connected again. And the same happens again and again.
>>
>> Is this a bug somewhere??? Am I missing something??
>>
>> You all understand that it's not convenient at all to have to 
>> execute
>> this every time an instance is started!
>>
>> Looking forward to hear your thoughts!
>>
>> Regards,
>>
>>
>> G.

-- 




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