On Sun, 27 Feb 2022 17:02:34 +0100, Bo Berglund <bo.bergl...@gmail.com> wrote:

>So I have done a test now:
>- Restarted the openvpn.local service on the server (local is only handling the
>local LAN traffic)
>- Remote LAN upload speed measured with speedtest at 249/150 Mbps.
>- An NFS share on the home LAN Ubuntu server is connected to from an RPi4 on 
>the
>remote LAN
>- I did a command like this on that remote RPi4 device:
>time cp -p videofile.mp4 $HOME/sharedir/subdir
>
>It came out at 65 s for a file sized 218923372 bytes which means 27 Mbit/s
>
>So this is pretty good (better than I had before the switch of the cipher), but
>it still uses the old ASUS RT-AC68U router.
>I expect it to imnprove once I can travel to the site and install an ASUS
>RT-AC86U router instead.
>

FOLLOW-UP on the transfer speed issue:
--------------------------------------
I have now replaced the remote site router with a more modern ASUS RT-AC86U
unit. So both LAN:s use the same type router now.

Same setup regarding OpenVPN Client on the router where I push settings using
the ccd file on the server:

iroute 192.168.117.0 255.255.255.0
#Disable compression and push it to the client
comp-lzo no
push "comp-lzo no"
#Set different cipher for the ASUS router client
cipher AES-128-GCM
push "cipher AES-128-GCM"


The Internet connection is running at 250/250 Mbps verified using Ookla
Speedtest (I have had big problems with the ISP regarding upload speed but that
was fixed 4 days ago).

With this in place and using an nfs share across the VPN tunnel I can upload a
video file from the remote site to my home site as follows:

video.mp4 file size: 283,190,409 bytes
Command for copy:    time cp -p video.mp4 <destination dir on nfs share>
Result:              real    0m12,823s

This calculates to 283,190,409 * 8 / 12.823 = 176.7 Mbps!!!

So this shows that the speed obtained is about an order of magnitude faster when
switching from RT-AC68U to RT-AC86U router.

Same type of transfer using the old router took minutes to complete.


-- 
Bo Berglund
Developer in Sweden



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