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i think there should be interface with 10.0.8.1 . it should be on host with
nova-network .
and for me the easy way is to check on this interface icmp packets from you
vm by tcpdump.



On Wed, Jun 6, 2012 at 5:50 PM, Leander Bessa Beernaert <leanderbb at gmail.com
> wrote:

> On the host node, the value of "/proc/sys/net/ipv4/ip_forward" is 1.
>
>
> On Wed, Jun 6, 2012 at 2:39 PM, Anton Haldin <ahaldin at griddynamics.com>wrote:
>
>> you can check net.ipv4.ip_forward on machine with ip interface  10.0.8.1
>>
>> i think on this machine you should have nova-network ( it manages
>> iptables rules,  brctl( bridges))
>>
>> also you can use tcpdump on interface of VM to search icmp packets.
>>
>>
>> On Wed, Jun 6, 2012 at 5:34 PM, Leander Bessa Beernaert <
>> leanderbb at gmail.com> wrote:
>>
>>>
>>>
>>> On Wed, Jun 6, 2012 at 2:33 PM, Anton Haldin <ahaldin at griddynamics.com>wrote:
>>>
>>>>  Do you have default router in VM ?
>>>> netstat -rn
>>>>
>>>
>>> Destination     Gateway         Genmask         Flags   MSS Window  irtt
>>> Iface
>>> 0.0.0.0         10.0.8.1        0.0.0.0         UG        0 0          0
>>> eth0
>>> 10.0.8.0        0.0.0.0         255.255.255.192 U         0 0          0
>>> eth0
>>>
>>>
>>>>
>>>>
>>>> Do you have multinode configuration ?
>>>>
>>> if all services on one node, do you have ip_forward enabled?
>>>>  sysctl net.ipv4.ip_forward
>>>>
>>>>
>>>>
>>> I have one controller node and 4 compute nodes.
>>>
>>>
>>>>
>>>>
>>>> On Wed, Jun 6, 2012 at 5:16 PM, Leander Bessa Beernaert <
>>>> leanderbb at gmail.com> wrote:
>>>>
>>>>> This is what i find inside my vms:
>>>>>
>>>>> domain novalocal
>>>>>> search novalocal
>>>>>> nameserver 10.0.8.1
>>>>>
>>>>>
>>>>> I believe the name resolution is working (see output bellow from the
>>>>> ping command), but the vm's seem unable to access the ip.
>>>>>
>>>>>> ping www.google.com
>>>>>> PING www.l.google.com (74.125.230.16) 56(84) bytes of data.
>>>>>
>>>>>
>>>>> On Wed, Jun 6, 2012 at 2:12 PM, Anton Haldin <ahaldin at griddynamics.com
>>>>> > wrote:
>>>>>
>>>>>> dns ? resolv.conf in VM
>>>>>>
>>>>>> On Wed, Jun 6, 2012 at 4:51 PM, Leander Bessa Beernaert <
>>>>>> leanderbb at gmail.com> wrote:
>>>>>>
>>>>>>> Hello,
>>>>>>>
>>>>>>> I'm having trouble accessing the outside world from within my
>>>>>>> instances. For instance, i can ping other instances on my network but i am
>>>>>>> unable to ping www.google.com.
>>>>>>>
>>>>>>> Any ideas?
>>>>>>>
>>>>>>>
>>>>>>> Regards,
>>>>>>>
>>>>>>> Leander
>>>>>>>
>>>>>>> _______________________________________________
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>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>
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