iperf: read failed: Connection refused

["Victor lyamtsev" <vlyamtsev --at-- gmail.com>]

Hello,

I am trying to measure packet loss for UDP stream on Wi Fi (802.11b )network:

for server : iperf -s - u - i 1

for client: iperf -u -c <ip-address> -i 1

 

In each case, regardless of packet size, I see "read failed: Connection refused" message on server.

What causes it? Can I still trust the results of measurement?

Thanks,

-V.