iperf speed test

I am tired of  using ftp to test upload and download speed.  Some guys said that FTP has limitation in case the bandwidth of the broadband line is large. I have to explore the use of  iperf to find out if the download and upload speed are accurate.

As my home PC is riding on an internal IP address 192.168.1.104, it can act as a client to perform upload test.  However, for download test, the internal host must act as a server.  Hopefully, I am able to set up a virtual server on my WiFi router and forward connection for port 50001 from the WAN side to the host 192.168.1.104 on the LAN side.