root@scw-39614e:~# iperf -c ping.online.net -r
------------------------------------------------------------
Server listening on TCP port 5001
TCP window size: 85.3 KByte (default)
------------------------------------------------------------
------------------------------------------------------------
Client connecting to ping.online.net, TCP port 5001
TCP window size:  188 KByte (default)
------------------------------------------------------------
[  5] local 10.1.36.209 port 54275 connected with 62.210.18.40 port 5001
[ ID] Interval       Transfer     Bandwidth
[  5]  0.0-10.0 sec  1.10 GBytes   941 Mbits/sec
[  4] local 10.1.36.209 port 5001 connected with 62.210.18.40 port 41361
[  4]  0.0-10.0 sec  1.10 GBytes   941 Mbits/sec