Hii JJK, I did that nc test, kept it ideal 5 mins, still it was successful. :( But I have one doubt.
You are saying "What remains to be seen is whether your network can *sustain* a UDP connection" But as soon as I connect to VPN server, I can't ping to server. and then after few minutes I get connection reset error. So from this, I am concluding that this has to be related to OpenVPN. Anyway, thanks for the help. Me too, don't have clue on what to do next. On Aug 31, 2016 6:23 PM, "Jan Just Keijser" <[email protected]> wrote: > > Hi, > > > On 30/08/16 18:42, Bhushan Patil wrote: >> >> Hi JJK, I tried lowering the 'ping' rate from 10 seconds to e.g. 5 seconds using >> keepalive 5 120 >> But still I can't ping to server on 10.8.0.6 from client. >> >> You said >> "This happens most often when a bad switch is used that is not able to handle UDP traffic or if a firewall is blocking traffic." >> So tried following >> Stopped OpenVPN server >> on server nc -l -u 1194 >> on client nc -u 10.1.2.12 1194 >> From above, I can communicate using UDP protocol from client to server in the same network. So does that means my network can handle UDP traffic ?? > > > your network was already capable of setting up a UDP connection - otherwise the log files would not have shown anything. What remains to be seen is whether your network can *sustain* a UDP connection. Start your 'nc' example , let it sit for 3 minutes and then type something on either end. > > > >> I have also uploaded client-server logs with timestamp sync. >> https://drive.google.com/open?id=0B_XxQm6n7m4la1VPczdoNXM2NGs >> > your config files look perfectly fine, BTW. And the log files show that both ends were able to read & write data - but for some reason the connection was reset anyways... I'm puzzled. I'm kinda hoping that the "nc+delay" test will show that there's a bad switch or router involved, otherwise I'm out of ideas. > > > HTH, > > JJK > > >> On Fri, Aug 26, 2016 at 12:59 PM, Jan Just Keijser <[email protected]> wrote: >>> >>> Hi, >>> >>> On 25/08/16 18:10, Bhushan Patil wrote: >>>> >>>> I have uploaded all configuration and logs on https://drive.google.com/ drive/folders/0B_XxQm6n7m4la1VPczdoNXM2NGs >>>> >>> careful examination of the log files shows that communications between the client and server break down after the initial connect. In the server log you can find >>> >>> WWWWRRWWWWWWWWWWWWWWWWWWWWWWWWWWThu Aug 25 11:50:45 2016 us=366024 pi2/ 10.1.2.14:42992 [pi2] Inactivity timeout (--ping-restart), restarting >>> >>> >>> which shows that the server is writing packets (W) but not receiving any (R or r) - which eventually triggers the restart. This happens most often when a bad switch is used that is not able to handle UDP traffic or if a firewall is blocking traffic. >>> >>> If you have no control over the firewall or switches you could try lowering the 'ping' rate from 10 seconds to e.g. 5 seconds using >>> keepalive 5 120 >>> >>> >>> HTH, >>> >>> JJK >>> >>> >>> PS the timestamps are completely off when comparing the server and the client log - it is best to keep the clocks in sync. That makes it much easier to debug things like this. >>> >>>> On Thu, Aug 25, 2016 at 9:34 PM, Bhushan Patil <[email protected]> wrote: >>>>> >>>>> I don't see any errors or warnings in server logs. Attachment contain server, client side logs as well as configuration. >>>>> >>>>> On Wed, Aug 24, 2016 at 1:40 PM, Jan Just Keijser <[email protected]> wrote: >>>>>> >>>>>> On 23/08/16 19:43, Bhushan Patil wrote: >>>>>>> >>>>>>> Yes, I am. >>>>>>> >>>>>>> On Jul 26, 2016 7:24 PM, "Alarig Le Lay" <[email protected]> wrote: >>>>>>> > >>>>>>> > On Tue Jul 26 06:20:36 2016, [email protected] wrote: >>>>>>> > > In my office, I am trying to connect Raspberry Pi as a client to OpenVPN >>>>>>> > > server(Ubuntu 14.04.3). When I try to connect client to server, I get >>>>>>> > > following log on terminal >>>>>>> > > >>>>>>> > > *Initialization Sequence Completed*After this, when i ping to OpenVPN >>>>>>> > > server (ping 10.8.0.1), I don't get reply. >>>>>>> > > But if I change protocol to TCP then I can ping. Can anyone point me to >>>>>>> > > right direction ? >>>>>>> > >>>>>> >>>>>> >>>>>> without config files and more log output it is impossible to tell what is happening. Connect over UDP with the client with verbosity set to 5 (--verb 5) and post anonymized client *and* server side log files. Also, check the server log for anything related to WARNING or ERROR. >>>>>> >>>>>> JJK >>>>>> >>>>> >>>> >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> >>>> >>>> >>>> _______________________________________________ Openvpn-users mailing list [email protected] https://lists.sourceforge.net/ lists/listinfo/openvpn-users >>> >>> >> >> >> >> ------------------------------------------------------------------------------ >> >> >> >> _______________________________________________ Openvpn-users mailing list [email protected] https://lists.sourceforge.net/ lists/listinfo/openvpn-users > >
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