iperf in UDP mode always reports one error

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http://www.linuxquestions.org – Hi, I'm using Iperf to test throughput on an embedded platform, using a very slow radio link in UDP mode. Whenever I run it, the server reports one more packet than the client, and one error. Before I go hacking at Iperf, Has anyone seen this? Client: # iperf -c -b1000 -l 100 -t 10 WARNING: option -b implies udp testing ------------------------------------------------------------ Client connecting to, UDP port 5001 Sending 100 byte datagrams UDP buffer size: 160 KByte (default) ------------------------------------------------------------ [ 3] local 192.168.1. (HowTos)