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OpenVPN speed / performance issues

Posted: Wed Sep 01, 2010 8:54 am
by lightman
i've got this setup

OpenVPN server (ubuntu) bridged -> 100Mbit inet -> client on a 20/4Mbit inet

but the download speed trough the tunnel is just like 10Mbits, ive also adjusted the different MTU sizes (tested with mtu-test)
but no performance increase...

multiple Replay-window backtrack occurre warnings in the logs.

openvpn is configured and based on UDP, does a TCP setup make any difference?