OpenVPN bottleneck

[kaspaas]

Hi,

I'm running openVPN on my server to enable travelling staff to get access to documents on the server in the office.

It is however extremely slow at times, and I'm trying to find the reason.

The setup:

A Linux (SuSE 10.1) box running SAMBA and serving the office at lightning speed.

Connected to a LAN and going to the internet with a Netgear DG834 router. Internet connectivity is via 512k Telkom ADSL (Webafrica bandwidth - shaped ).

To connect to the server, I would connect to the internet using a Nokia E61 phone connected to my PC by USB cable.

This connection is fast when downloading web pages etc.

When opening OpenVPN on the PC, it connects quite fast.

When opening Windows explorer, the system goes almost to sleep. In 5 minutes I had a mere 50kByte data transfer.

When connecting to the VPN server, it takes minutes before the available shares are displayed, following the directory structure is extremely slow.

When one does download a file, the speed picks up to acceptable levels.

Does anybody know where the bottleneck is?

And yes - we are waiting for Telkom to wake up and upgrade the ADSL line - although it does not seem to be the route of the problem.

 

[bwana]

The connection would only be as fast as your slowest speed which is probably the 256k upstream from the ADSL?

Have you tried it from an ADSL line instead of your phone (which is has a 3G connection?)?

 

[kaspaas]

The connection would only be as fast as your slowest speed which is probably the 256k upstream from the ADSL?

Have you tried it from an ADSL line instead of your phone (which is has a 3G connection?)?

During the problem phase the data rate is only around 50kB per 5 minutes. I doubt if this bottleneck is due to bandwidth restrictions.

 

[dabouncer]

Is ur openvpn connection trying to use ur office servers gateway for internet because thats what it seems like to me.
On ur internet protocol tcp/ip advanced settings you can prevent ur pc using the default gateway of the vpn.