Intermittent TCP connect issues when using tinc 1.0.23 and IPv6

tomp at tomp.co.uk tomp at tomp.co.uk
Thu Nov 28 18:57:48 CET 2013


OK makes sense.

How often would you expect to see the REQ_KEY and the PMTU probes 
occurring?

They seem to happen quite a lot, is that normal?

Tom

On 2013-11-28 15:51, Guus Sliepen wrote:
> On Thu, Nov 28, 2013 at 02:52:45PM +0000, tomp at tomp.co.uk wrote:
> 
>> Now that debugging is turned on properly, I am seeing some
>> interesting lines:
>> 
>> 2013-11-28 14:48:48 tinc.dcvpn[31620]: Got type 2 MTU probe reply 
>> 1431 from rps (2001:1b40:5000:9::2 port 655)
>> 2013-11-28 14:48:48 tinc.dcvpn[31620]: Got type 2 MTU probe reply 
>> 1431 from rps (2001:1b40:5000:9::2 port 655)
>> 2013-11-28 14:48:48 tinc.dcvpn[31620]: Got type 2 MTU probe reply 
>> 1431 from rps (2001:1b40:5000:9::2 port 655)
>> 2013-11-28 14:48:48 tinc.dcvpn[31620]: rps (2001:1b40:5000:9::2 port 
>> 655) RTT 0.49 ms, burst bandwidth 51.684 Mbit/s, rx packet loss 100.00 
>> %
>> 
>> Specifically the bit about 100% packet loss.
> 
> Ignore the bit about packet loss, that is an estimate that doesn't 
> work
> correctly yet.
> 
>> It was shortly after following by:
>> 
>> 2013-11-28 14:51:01 tinc.dcvpn[31620]: Got REQ_KEY from rps 
>> (2001:1b40:5000:9::2 port 55170): 15 rps rsukmhb 21 AA...
>> 
>> I got a REQ_KEY request 12 times in 1s from rps.
> 
> That is also normal for tinc 1.1.
> 
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