Increasing throughput of VPN

kraze

Hi,

I am looking for some tips/tricks so I can optimize the throughput of my VPN. Currently I see about 400KB/s to 1MB/s which isn't terrible but not what I'd expect to see. I've done a lot of research and have found some good tips and applied the ones that I could. VPN is in Chicago and running on a 1GB port and powered by an E5-1690V2. I am gauging my throughput by downloading a single file from a place I know is capable of handling the speeds and one that I control. I should note that I am specifically seeing issues with HTTP downloads, downloading from the VPN itself I just about use my full line speed. I imagine latency is what's affecting the HTTP speed issues and I knew it would but it seems rather extreme in this case.

Server config
http://pastebin.com/2msVTm9t

Client config
http://pastebin.com/JWE9CHin

With compression disabled I saw a slight improvement and with encryption/auth disabled it actually got worse..

maikcat

did you also tried using linux on your server side?

Michael.

kraze

I have not tried Linux, It has been recommend that I do, though and from the looks of thing I may just have to.

kraze

Made the switch over to Linux, unfortunately I wasn't able to preserve some aspects. I had to relocate the VPN to Seattle so my latency improved but HTTP downloads seem to remain unaffected. Still seeing about 500KB-1MB/s.

I'll start going through some more tweaks as it seems many of the ones I found applied to Linux only, but if you have any please do let me know.