On 11/04/18 11:41, Andreas Bockelmann wrote:
> I run a raspberry PI2 (Jessie) with Open VPN Server. The PI is connected
> to my home router by network cable (100 Mbit) The router forwards port
> 1194 to Raspi's IP-adrdress, no porblem.
>
> When I connect from external to my network by OpenVPN and connect to
> Windows machines by RDP, I encounter interruptuions and lagging
> connections.

What else is the RaspberryPi doing, and is it using a memory card or USB
storage? The latter will be using the single USB bus that the ethernet
is on.

> When I run VPN server on my router 'Netgear R7000' running Tomato build
> by Shibby, everythin is fine. testing file transfers the Rasp PI has
> abouttwice the speed (2,4 MB/sec) compared to the router, but lagging
> and interruption become wors and worse when trying to work remotely.

That router is pretty slow, my ASUS RT-AC68U is a good bit faster than a
3B. When acting as a VPN gateway a fibre connection can exceed the Pi's
100Mb Ethernet throughput, as the amount of traffic is more than doubled.

> Is there anythin I can tune? TOPshows abozut 10% cpu load.

Possibly, but you can't solve the hardware limitations. If VPN
performance is critical, invest in a better router or something with
gigabyte ethernet (the 3B+ may or may not be any better, depending on
what the issue is).

---druck

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