Hi Vish,

Thanks for replying.

multi_host is set up on all nodes. Where are ip_forward and the snat rules 
documented?

Thanks

Dave

On 31 Aug 2012, at 16:54, Vishvananda Ishaya wrote:

> Are you running multi_host, as in nova-network on both nodes? I would check 
> ip_forward is enabled on both nodes. Nova-network creates an snat rule so 
> that Instances can get to the outside world, so you should also make sure 
> that the snat rule exists and seems to be working properly.
> 
> Vish
> 
> On Aug 31, 2012, at 5:43 AM, Dave Pigott <dave.pig...@linaro.org> wrote:
> 
>> Hi all,
>> 
>> I now have a nicely stable OpenStack install running on five servers, with 
>> one acting as control with all the services, and the rest just 
>> compute/network nodes.
>> 
>> The strange thing now, is that if an instance is running on the control 
>> node, it can ping the outside world, but if it's running on any other node, 
>> it can't ping the outside world, even on the LAN. The odd thing is, it 
>> *does* successfully do a dns lookup. Additionally, it can ping other 
>> instances on the private network address range.
>> 
>> Any ideas?
>> 
>> Thanks
>> 
>> Dave Pigott
>> Validation Engineer
>> T: +44 1223 40 00 63 | M +44 7940 45 93 44
>> Linaro.org │ Open source software for ARM SoCs
>> Follow Linaro: Facebook | Twitter | Blog
>> 
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