OpenVPN over AT&T fiber offering?

Advanced feature discussion, beta programs and unsupported "Labs" features.
8 posts Page 1 of 1
by faisal » Wed Sep 19, 2018 9:38 pm
I see Sonic's reselling AT&T fiber. Is anyone here using Sonic's OpenVPN over that fiber, and if so what kind of bandwidth are you getting through the tunnel?
by forest » Fri Sep 21, 2018 4:51 pm
Yes. It was a solid 18 mbps when Sonic's OpenVPN server was new, but it varies between around 12 and 17 lately,
depending (apparently) on how well the server is doing at any given moment. That's obviously rather poor for a 20 mbps line, but at least it's better than the plain old DSL that it replaced.
by faisal » Fri Sep 21, 2018 5:02 pm
Huh. I was getting about 45 on a 50 mbps bonded DSL line, but after the spring VPN server update I'm usually in the 20-25 range, with the occasional day where I can hit 30. That suggests some limitations in the VPN endpoint, but I find it strange that you're seeing a drop since I wouldn't expect the limitations to be proportional. Maybe it's CPU limitations at the far end?

And to my original question: is anyone VPN'ing over fiber, or is it too new?
by forest » Fri Sep 21, 2018 6:53 pm
Oops. By "AT&T fiber", I thought you meant FTTN. I didn't realize Sonic was reselling AT&T FTTH.
by whorfin » Wed Oct 31, 2018 4:21 pm
I tried it [FTTP, supposedly gigabit], and had to stop using OpenVPN because of disappointing performance.
Various resources such as this led me to believe 500mbps - 800mbps should be possible if AES-NI were active on both endpoints and if we could adjust MTU.
I saw no better than ~230Mbps, and the load on my appliance led me to believe the Sonic endpoint was the limiting factor.
It was great for FTTN, but off by binary orders of magnitude for FTTP.

In other news, off VPN, I'm seeing less than 700Mbps down, highly dependent on time of day, sometimes <600 but consistently >900Mbps up, leading me to believe AT&T is under-provisioned somewhere along the path.
by faisal » Fri Feb 22, 2019 1:39 pm
whorfin wrote:
I saw no better than ~230Mbps, and the load on my appliance led me to believe the Sonic endpoint was the limiting factor.

What if anything did you need to do to hit 230Mbps?
by whorfin » Fri Feb 22, 2019 2:45 pm
Run on fast hardware
Fast consumer routers didn’t cut it
I’m using pfSense on Netgate hardware
by miken » Mon Feb 25, 2019 3:19 pm
Generic speedtests are not going to be accurate on VPN connections, because they weren't designed with encryption and decryption in mind. There was even someone on here once that was getting a 50% speed increase in his results when speedtesting over VPN.
Mike N.
Development Trainer
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