On Sat, 12 Feb 2022 18:56:33 +0100, Gert Doering <g...@greenie.muc.de> wrote:
>Hi, > >On Sat, Feb 12, 2022 at 06:22:41PM +0100, Bo Berglund wrote: >> Connection LAN-LAN: >> Home LAN: ASUS RT-AC86U router >> Remote LAN: ASUS RT-AC68U router >> Remote router connects by OpenVPN to home OpenVPN server and the system has >> been >[..] >> Erlier tests with the server and client on the same LAN showed speed maxing >> out >> in the hundreds of Mbit/s. So the bottleneck seems to be OpenVPN. > >From what I could find, this router has a dual-core ARM CPU with 800 MHz, >which is just not very fast. For "regular packets" this is fast enough >(it might have hardware that helps with "normal routing") but if doing >crypto, I'm not sure how much you can achieve. So there may be more recent versions of routers that are faster in this respect? The two I use are different, the RT-AC86U is new whereas the other is the one I used at home before. And this is the one running the OpenVPN client so it encrypts the data. On the home side the ASUS RT-AC86U router just funnels the packets to the openVPN server, which has pretty capable hardware to decrypt the data. Maybe I should look for a replacement router instead of using the old home router? >If OpenVPN is new enough, going for "--cipher CHACHA20-POLY1305" might >help, as this can be accelerated nicely on (modern) ARM CPUs, while >the default 2.4+ cipher (AES-256-GCM) is only hardware-accelerated on >Intel CPUs with AES-NI instruction. I suspect that the OpenVPN version is pretty old on the ASUS RT-AC68U router... -- Bo Berglund Developer in Sweden _______________________________________________ Openvpn-users mailing list Openvpn-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/openvpn-users
