Hi lads, I have been doing some testing with tap(4) and openvpn (standard ssl ) I have been using openvpn with tap and I have been trying with null encryption. null authentication, the performance of the tap interface seems to be about 100-150Mb/s on a system which can give 3Gb/s-5Gb/s on ix(4) interfaces in Bridge mode and 4-8Gb/s on tpmr mode I was wondering is there a sysctl setting that if modified would improve the tap interface performance. I have tried with tpmr(4) and bridge(4)
is there a simple way testing a tap(4) interface throughput / performance without Openvpn process I can try mlvpn and wireguard but I would love if there was a trick where I can just test the tap(4) interface with something like pair(4)... ix0---bridge0--tap0---someprocess--tap1-bridge1--ix1 or ix0--tpmr0--tap0--someprocess--tap1-tpmr1-ix1 is there a simple "someprocess" that would provide forwarding packets between tap0 and tap1 in userland so that any performance testing on tap(4) interfaces does not have the distractions of complex userland programs with encryption / encapsulation overheads Thanks for your time Tom Smyth -- Kindest regards, Tom Smyth.
