OpenVPN on TMG 2010

JHolzer

Hello together!

I know this setup is not the best, but as it was already working, I don't know why it shouldn't work now.

I have a TMG 2010 installation and running OpenVPN in bridged mode with the TAP adapter in TCP on it. I can establish a connection with the clients, but it seems there is something wrong with the tunnel. I've already reinstalled OpenVPN and completely removed the TAP adapter and drivers also with pnputil.exe, but there's no difference.

On the Server log I can see lot of following messages:
MULTI: Outgoing TUN queue full, dropped packet len=XXX

Here are my configs, maybe someone can help me.
Server: https://bullat.sharefile.com/d/s047da29b14245239
Client: https://bullat.sharefile.com/d/sbda261209a54a06b

Thank you very much!
Best Regards
Jürgen

JHolzer

GUYS!!!! It's working!! 😃
It was like getting children...

I used the I604 version which should contain a better Tap-windows driver but instead I have to use the I004 version!

I'm using Windows 7 Enterprise SP1 with latest updates as client and Windows Standard 2008 R2 with latest updates as server.
So why is this "better" tap driver not working?? :?:

Best regards
JHolzer

Traffic

JHolzer wroteI used the I604 version which should contain a better Tap-windows driver but instead I have to use the I004 version!

i60x is known to have a bug .. Personally, I don't know why they still make it available.

Worth reading this:
https://forums.openvpn.net/topic16933.html

JHolzer

Thank you very much! I was searching all around for days, but never came to this thread...

But it seems the mentioned functioning new driver is not available for download. And why should I do the workaround with installing the i60x versions with old TAP driver afterwards, if the only difference is the TAP driver?

Regards
Jürgen

Traffic

JHolzer wrote it seems the mentioned functioning new driver is not available for download.

The download works for me ?

Anyway, the i60x TAP driver is bugged .. use the i00x version.