openstack team mailing list archive

[Leander Bessa Beernaert <leanderbb@xxxxxxxxx>]

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@xxxxxxxxxxxxxxxx>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@xxxxxxxxx> wrote:
>
>>
>>
>> On Wed, Jun 6, 2012 at 2:33 PM, Anton Haldin <ahaldin@xxxxxxxxxxxxxxxx>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@xxxxxxxxx> 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@xxxxxxxxxxxxxxxx>wrote:
>>>>
>>>>> dns ? resolv.conf in VM
>>>>>
>>>>> On Wed, Jun 6, 2012 at 4:51 PM, Leander Bessa Beernaert <
>>>>> leanderbb@xxxxxxxxx> 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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>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>