VMD-L Mailing List

From: John Stone (johns_at_ks.uiuc.edu)
Date: Tue Oct 03 2017 - 13:41:52 CDT

Hi,
  I followed up with Xiaohu on the VRPN mailing list, this is most
likely a VRPN version incompatibility issue. Compatibility generally
requires both the VRPN server and VMD client to be compiled with
the same VRPN version. I'll see if I can produce a test build of
VMD compiled against VRPN 7.33 soon.

Best,
  John Stone
  vmd_at_ks.uiuc.edu

On Mon, Oct 02, 2017 at 03:58:03PM -0400, Xiaohu Hu wrote:
> Sorry, the repreating error messages should be this:
>
>
> On the server:
>
> vrpn: Connection request received from xx.xx.xx.xxx: 51469
> vrpn_Endpoint::connect_tcp_to: Could not connect to machine port 51469
> Winsock error: 10061
> vrpn_Endpoint::setup_new_connection:  Can't write cookie.
> vrpn_Connection_IP::handle_connection():  Can't set up new connection
>
>
> and on the VMD console:
>
> from Phantom: No response from server for >= 10 second
>
>
> On 10/02/2017 02:30 PM, Xiaohu Hu wrote:
> >Dear all,
> >
> >I am seeing a strange network error when I tried to use VRPN to
> >connect a sensible phantom haptic device to another computer
> >running the software. So I have this following setup:
> >
> >- A windows 7 machine running VRPN server 7.33, the haptic device
> >is connected to the windows machine and is properly configured. I
> >used the vrpn_print_devices.exe command to verfied it.
> >
> >- A second linux computer running ubuntu 16.04 has the software
> >VMD installed on it which should connect to the VRPN server on the
> >win7 machine. The goal is to use the haptic device as a input
> >device for the IMD that will be ran on the linux machine.
> >
> >Everything seems fine until when I try to connect to the VRPN
> >server from the linux machine. On the server screen, I see the
> >following repeating error message:
> >
> >vrpn: Connection request received from xx.xx.xx.xxx: https://urldefense.proofpoint.com/v2/url?u=http-3A__127.0.1.1&d=DwIDaQ&c=shNJtf5dKgNcPZ6Yh64b-A&r=SHx_YnYMsBQdPqUNPQ_CGtLPvCDYJr0vd32NmgHNJaI&m=7ENtYXMunETrrqLHllF6gWgCW4SdjZ5SXTQ1zp04j-A&s=HqzZxYyEQS_mWHHjepXn8Xz1VGDEAcLbldpxRtmA1wk&e=
> >51469
> >vrpn_Endpoint::connect_tcp_to: Could not connect to machine https://urldefense.proofpoint.com/v2/url?u=http-3A__127.0.1.1&d=DwIDaQ&c=shNJtf5dKgNcPZ6Yh64b-A&r=SHx_YnYMsBQdPqUNPQ_CGtLPvCDYJr0vd32NmgHNJaI&m=7ENtYXMunETrrqLHllF6gWgCW4SdjZ5SXTQ1zp04j-A&s=HqzZxYyEQS_mWHHjepXn8Xz1VGDEAcLbldpxRtmA1wk&e=
> >port 51469
> >Winsock error: 10061
> >vrpn_Endpoint::setup_new_connection:  Can't write cookie.
> >vrpn_Connection_IP::handle_connection():  Can't set up new connection!
> >
> >meanwhile on the linux machine I see this repeating error message
> >on the vmd console:
> >
> >from Phantom: No response from server for >= 10 seconds
> >
> >It seems that the vmd on the linux machine is trying to make a
> >request to connect to the VRPN server, which is received by the
> >VRPN server, but when the server tries to talk back to the vmd, it
> >gets denied for some reason (ergo the winsock 10061 error?). I
> >have turned off the firewalls on both machines and the same thing
> >still happens.
> >
> >I am wondering whether it is a VRPN issue or a network issue, both
> >computers are connected to the same network, they should be on the
> >same subnet. I am wondering if anyone else has seen similar error?
> >Any help here is appreciated, and much thanks in advance!
> >
> >Best,
> >
> >Xiaohu
> >
>
> --
>
> Xiaohu Hu
> Postdoctoral Fellow
> Department of Pharmacological Sciences
> Icahn School of Medicine at Mount Sinai
> Email: xiaohu.hu_at_mssm.edu 

-- 
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