Greetings! I have a querry about using tcptrace in wireless network. In sequence graphs I am getting many "hardware level dup acks". Tcptrace user manual describes filtering option to avoid "hardware level dup acks". I use following command (which gives error message) : ~/tcptrace -f num_hw_dups myTcpdumpFile I would appreciate if someone can guide me about how to use filtering option with tcptrace. Regards, Harkirat To Unsubscribe: send mail to [EMAIL PROTECTED] with "unsubscribe freebsd-net" in the body of the message