root@gw3:~# date
Mon Jun  1 19:06:18 MSK 2020
root@gw3:~# iperf3 -c speedtest.hostkey.ru -R
Connecting to host speedtest.hostkey.ru, port 5201
Reverse mode, remote host speedtest.hostkey.ru is sending
[  5] local <RT.RU IP> port 52000 connected to 31.192.104.200 port 5201
[ ID] Interval           Transfer     Bitrate
[  5]   0.00-1.00   sec  7.71 MBytes  64.7 Mbits/sec
[  5]   1.00-2.00   sec  8.01 MBytes  67.2 Mbits/sec
[  5]   2.00-3.00   sec  6.90 MBytes  57.9 Mbits/sec
[  5]   3.00-4.00   sec  8.65 MBytes  72.6 Mbits/sec
[  5]   4.00-5.00   sec  7.11 MBytes  59.6 Mbits/sec
[  5]   5.00-6.00   sec  8.33 MBytes  69.8 Mbits/sec
[  5]   6.00-7.00   sec  9.16 MBytes  76.8 Mbits/sec
[  5]   7.00-8.00   sec  7.73 MBytes  64.8 Mbits/sec
[  5]   8.00-9.00   sec  8.49 MBytes  71.2 Mbits/sec
[  5]   9.00-10.00  sec  8.01 MBytes  67.2 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval           Transfer     Bitrate         Retr
[  5]   0.00-10.00  sec  81.1 MBytes  68.1 Mbits/sec  160             sender
[  5]   0.00-10.00  sec  80.1 MBytes  67.2 Mbits/sec                  receiver

iperf Done.