[kwlug-disc] Slow OpenVPN on Rogers?

L.D. Paniak ldpaniak at fourpisolutions.com
Tue May 17 11:07:44 EDT 2011


Go ahead, blame Rogers...

Unfortunately, I have had similar experience with Rogers and OpenVPN.  I
believe it has to do with Rogers' latency trashing... um, SpeedBoost ...
feature.  I never looked into the details - just got rid of Rogers - but
you might find that increasing the "replay-window" option on the server
side mitigates the problem.

pfsense allows you to set extra options in the "Advanced configuration"
section of a server/client definition.  Adding "verb 6" there should
turn up reporting.  Good luck on finding the log file...



On Mon, 2011-05-16 at 13:20 -0400, Paul Nijjar wrote:
> Every few months I get unhappy about our internet access and
> pre-emptively start blaming Rogers. Today's complaint goes like this:
> we have two OpenVPN access points set up to the same network -- one
> accessing the network via a Rogers gateway, and one via a Sympatico
> one. Both OpenVPN connections work sometimes, but for the past two
> months our Rogers OpenVPN gateway has been so slow it is basically
> unusable -- even when the Sympatico gateway is okay. 
> 
> I am still trying to figure out how to make pfSense (which is hosting
> these access points) cough up debugging information. There is also
> some chance that our network is doing something funky. But I want to
> know whether I can rule out Rogers or not. Are others running OpenVPN
> servers connecting via Rogers? Does my experience ring any bells for
> you?
> 
> - Paul
> 
> 

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