Hi, I read the doc cmd.html, and did some test about --broadcast, IMHO, I think the following doc in cmd.html should be fixed: ---------------------------- Networking options The following networking options should be supplied both on the sender and the receivers: ... --broadcast ... This option should only be supplied on the sender. ---------------------------- udp-receiver --boradcast udp-receiver: unrecognized option `--boradcast' udp-receiver [--file file] [--pipe pipe] [--portbase portbase] [--interface net-interface] [--log file] [--ttl time-to-live] [--mcast-rdv-addr mcast-rdv-address] [--rcvbuf buf] [--nokbd] [--exit-wait milliseconds] [--nosync] [--license] --broadcast should only be used in udp-sender, Not with udp-receiver. Therefore --braodcast should be moved to the session "The following networking options should be supplied only on the sender:" Thanks. Steven. -- Steven Shiau <steven _at_ nchc org tw> <steven _at_ stevenshiau org> National Center for High-performance Computing, Taiwan. http://www.nchc.org.tw Public Key Server PGP Key ID: 9762755A