Default route changes unexpectedly

Krzysztof Barcikowski krzysiek at airnet.opole.pl
Wed Mar 6 09:29:03 UTC 2013


I believe I don't have flowtable suport in kernel (no FLOWTABLE option), 
and no sysctl's related to flowtable.

How to check if I'm using multiple pfil hooks?

Best regards!
Krzysiek

W dniu 2013-03-06 10:13, Ermal Luçi pisze:
> On Wed, Mar 6, 2013 at 9:38 AM, Krzysztof Barcikowski <
> krzysiek at airnet.opole.pl> wrote:
>
>> W dniu 2013-03-06 09:25, Andre Oppermann pisze:
>>
>>   Can you describe your traffic forwarding setup in more detail?
>>> Is it only pf, or do you run netgraph, or other things as well?
>>> Do you use flow routing?
>>>
>>> How frequent does this happen?
>>>
>>> I'm trying to create a stack graph to see which parts of the network
>>> stack are involved in handling your packet.
>>>
>>>
>> Hi,
>> In my case, I do use PF for filtering and NAT (without routing options
>> like 'route-to' or 'reply-to') together with ALTQ (PRIQ).
>> I also use IPFW+Dummynet combo for shaping.
>>
>> net.inet.ip.sourceroute: 0
>> net.inet.ip.accept_**sourceroute: 0
>>
>> Router traffic is about 300Mb/s in peak.
>>
>> Frequency:
>> Wed Oct 3 14:19:15 CEST 2012
>> Thu Dec 13 04:39:43 CET 2012
>> Thu Dec 13 04:39:46 CET 2012
>> Thu Dec 13 04:39:47 CET 2012
>> Thu Dec 13 04:39:50 CET 2012
>> Thu Dec 13 04:39:53 CET 2012
>> Thu Dec 13 04:39:59 CET 2012
>> Thu Dec 13 04:40:11 CET 2012
>> Fri Jan 4 07:47:00 CET 2013
>> Mon Jan 28 18:35:43 CET 2013
>> Sat Feb 2 22:43:01 CET 2013
>>
>> I do only monitor default route change, but this bug also affects static
>> routes (i.e. I have one static route and it changes more frequently that
>> default route).
>>
>> Please let me know if I can provide any more feedback.
>>
>> Krzysiek
>>
>>
>>
>>
> Do you have flowtable support in your kernel?
> Can you try without it enabled?
>
>
>>
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