[Openvpn-users] VPN Client (Write to TUN/TAP Result Too Large) [Open Solaris 10 ON + Nexenta Alpha5]

[David Lloyd <lloy0076@xxxxxxxxxxx>]

I keep on getting:

[date] write to TUN/TAP : Result too large (code=34)

It happens every 20 seconds and eventually the connection resets.

I've copied the client.conf and my key(s) from a working Gentoo 
GNU/Linux configuration.

I've used the Solaris tun device from:

  http://vtun.sourceforge.net/tun/

And I'm using the sources from the web whose last changelog entry was 
2006.10.01 -- Version 2.0.9

Although I had to do some very small adjustments to get OpenVPN to 
compile properly, I do not believe these adjustments would cause this 
failure:

1. I had to download the source version of the TUN/TAP driver

    - and place net/if_tun.h (or was it net/if_tap.h) in
      a place where the compiler could find it

    - I don't believe this to be an issue as my Solaris loads the TUN/TAP
      driver at boot and OpenVPN isn't complaining about a lack of it

      [I've seen what happens if the tun* device(s) don't exist and
       Openvpn isn't showing those errors]

2. I've had to add /usr/sfw/lib to the shared library configuration path

    - this was for the openssl shared libraries

    - the SSL negotiations are approved and debug shows routes etc etc
      being sent to me

    - I conclude that this isn't the issue as the certificate/key
      negotiation doesn't give a failure message


I have also tried the same on another Nexenta Alpha5 machine. Whilst 
openvpn and the tun drivers compiled with less fiddling, I still 
encounter the same problem(s).

I'm not sure what else I can do to work out what that error actually 
means...

DSL
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