[Scion] Unable to connect to OpenVPN server

Siddharth Mehrotra the4daspect at gmail.com
Fri Aug 30 14:49:49 CEST 2019


HI Juan,

I tried with standalone Ubuntu 16.04 machine now and it reports following
same error:

Aug 30 14:41:21 siddharth-ThinkPad-T480 anacron[965]: Job `cron.daily'
terminated (mailing output)
Aug 30 14:41:21 siddharth-ThinkPad-T480 anacron[965]: anacron: Can't
find sendmail at /usr/sbin/sendmail, not mailing output
Aug 30 14:41:21 siddharth-ThinkPad-T480 anacron[965]: Can't find
sendmail at /usr/sbin/sendmail, not mailing output
Aug 30 14:41:24 siddharth-ThinkPad-T480 ovpn-client[963]: TLS Error:
TLS key negotiation failed to occur within 60 seconds (check your
network connectivity)
Aug 30 14:41:24 siddharth-ThinkPad-T480 ovpn-client[963]: TLS Error:
TLS handshake failed
Aug 30 14:41:24 siddharth-ThinkPad-T480 ovpn-client[963]:
SIGUSR1[soft,tls-error] received, process restarting
Aug 30 14:41:24 siddharth-ThinkPad-T480 ovpn-client[963]: Restart
pause, 2 second(s)
Aug 30 14:41:26 siddharth-ThinkPad-T480 ovpn-client[963]: WARNING: No
server certificate verification method has been enabled.  See
http://openvpn.net/howto.html#mitm for more info.
Aug 30 14:41:26 siddharth-ThinkPad-T480 ovpn-client[963]: Socket
Buffers: R=[212992->212992] S=[212992->212992]
Aug 30 14:41:26 siddharth-ThinkPad-T480 ovpn-client[963]: UDPv4 link
local: [undef]
Aug 30 14:41:26 siddharth-ThinkPad-T480 ovpn-client[963]: UDPv4 link
remote: [AF_INET]128.105.21.208:1194
Aug 30 14:42:27 siddharth-ThinkPad-T480 ovpn-client[963]: TLS Error:
TLS key negotiation failed to occur within 60 seconds (check your
network connectivity)
Aug 30 14:42:27 siddharth-ThinkPad-T480 ovpn-client[963]: TLS Error:
TLS handshake failed
Aug 30 14:42:27 siddharth-ThinkPad-T480 ovpn-client[963]:
SIGUSR1[soft,tls-error] received, process restarting
Aug 30 14:42:27 siddharth-ThinkPad-T480 ovpn-client[963]: Restart
pause, 2 second(s)
Aug 30 14:42:29 siddharth-ThinkPad-T480 ovpn-client[963]: WARNING: No
server certificate verification method has been enabled.  See
http://openvpn.net/howto.html#mitm for more info.
Aug 30 14:42:29 siddharth-ThinkPad-T480 ovpn-client[963]: Socket
Buffers: R=[212992->212992] S=[212992->212992]
Aug 30 14:42:29 siddharth-ThinkPad-T480 ovpn-client[963]: UDPv4 link
local: [undef]
Aug 30 14:42:29 siddharth-ThinkPad-T480 ovpn-client[963]: UDPv4 link
remote: [AF_INET]128.105.21.208:1194
Aug 30 14:43:29 siddharth-ThinkPad-T480 ovpn-client[963]: TLS Error:
TLS key negotiation failed to occur within 60 seconds (check your
network connectivity)
Aug 30 14:43:29 siddharth-ThinkPad-T480 ovpn-client[963]: TLS Error:
TLS handshake failed
Aug 30 14:43:29 siddharth-ThinkPad-T480 ovpn-client[963]:
SIGUSR1[soft,tls-error] received, process restarting
Aug 30 14:43:29 siddharth-ThinkPad-T480 ovpn-client[963]: Restart
pause, 2 second(s)
Aug 30 14:43:31 siddharth-ThinkPad-T480 ovpn-client[963]: WARNING: No
server certificate verification method has been enabled.  See
http://openvpn.net/howto.html#mitm for more info.
Aug 30 14:43:31 siddharth-ThinkPad-T480 ovpn-client[963]: Socket
Buffers: R=[212992->212992] S=[212992->212992]
Aug 30 14:43:31 siddharth-ThinkPad-T480 ovpn-client[963]: UDPv4 link
local: [undef]
Aug 30 14:43:31 siddharth-ThinkPad-T480 ovpn-client[963]: UDPv4 link
remote: [AF_INET]128.105.21.208:1194

On performing ip a command inside SCION network, I can see only: *lo,
enp0s3 and docker0.*

While in local machine I have: *lo, enp0s31f6, wlp3s0 and docker0.*

Best,
Siddharth


On Fri, Aug 30, 2019 at 1:05 PM Juan A. García-Pardo <juagargi at gmail.com>
wrote:

> Hi Siddharth,
> We don't have any experience with OpenVPN for Windows. I would suggest
> these two steps to troubleshoot your setup:
> - Check with a VM that your user AS runs correctly. Since we have lots of
> experience in Ubuntu 16.04, install first a VM like that, or eve better,
> install the Vagrant-Virtual Box VM that you see being installed in the
> `run.sh` script in your configuration from the Coordinator.
> - If the previous step worked, check only the VPN connection. As you were
> saying, it will probably fail. Tell us and we will investigate further.
> Thanks and best regards,
>
> Juan A.
>
>
> On Fri, Aug 30, 2019 at 11:36 AM Siddharth Mehrotra <the4daspect at gmail.com>
> wrote:
>
>> Hi all,
>>
>> I am trying to connect to SCION Lab via VPN.
>>
>> I am currently using Windows OS and have been able to run SCION
>> successfully but can't connect to SCION Lab. I added the config file from
>> SCION folder to the OPEN VPN directory however I am unable to connect &
>> can't find tun0.
>>
>> The error report from OPENVPN GUI is as:
>>
>> Fri Aug 30 09:24:22 2019 TCP/UDP: Preserving recently used remote address:
>> [AF_INET]192.33.93.195:1194
>> Fri Aug 30 09:24:22 2019 Socket Buffers: R=[65536->65536] S=[65536->65536]
>> Fri Aug 30 09:24:22 2019 UDP link local: (not bound)
>> Fri Aug 30 09:24:22 2019 UDP link remote: [AF_INET]192.33.93.195:1194
>> Fri Aug 30 09:24:22 2019 MANAGEMENT: >STATE:1567149862,WAIT,,,,,,
>> Fri Aug 30 09:25:22 2019 TLS Error: TLS key negotiation failed to occur
>> within 60 seconds (check your network connectivity)
>> Fri Aug 30 09:25:22 2019 TLS Error: TLS handshake failed
>> Fri Aug 30 09:25:22 2019 SIGUSR1[soft,tls-error] received, process
>> restarting
>> Fri Aug 30 09:25:22 2019 MANAGEMENT:
>> >STATE:1567149922,RECONNECTING,tls-error,,,,,
>> Fri Aug 30 09:25:22 2019 Restart pause, 5 second(s)
>>
>> Not sure if I am doing something wrong or it's server error.
>>
>>
>> https://drive.google.com/file/d/1Tz8zgPEGBGmJNumdlj0FGUm1s3QH_6-a/view?usp=sharing
>> : Log File
>>
>> Best regards,
>> Siddharth
>> -----------------------------------------
>> Siddharth Mehrotra
>> Graduate Student
>> Media Computing Group - i10
>> RWTH Aachen University, Germany.
>> https://hci.rwth-aachen.de/mehrotra
>> <
>> https://nam06.safelinks.protection.outlook.com/?url=https%3A%2F%2Fhci.rwth-aachen.de%2Fmehrotra&data=02%7C01%7Canthie%40microsoft.com%7Cf4f74c79b7e549ccf57408d700518b24%7C72f988bf86f141af91ab2d7cd011db47%7C1%7C0%7C636978222542028359&sdata=ps4RQIMrjansy%2BoTUsEh1PABCkWssk3rGP4dXJASs04%3D&reserved=0
>> >
>> _______________________________________________
>> Scion mailing list
>> Scion at lists.inf.ethz.ch
>> https://lists.inf.ethz.ch/mailman/listinfo/scion
>>
>


More information about the Scion mailing list