Does anyone know of a Program that can Send UDP packets with different IP addresses in it. Where I work out some of our Equipment uses CDPD like a open communications line that uses IP address. What we want is to test out having say 100+ of our units pinging us at the same time. Then have a Program that reads the UDP packet look for a certain String/header etc.. and send information back to the unit.. If someone knows about this or how to do it Please let me know.. Also If you would like to Email me a answer to my personal email account please use [EMAIL PROTECTED] Thanks, James J. Capone Also if you goto http://www.ptm.com you can see what we do.... Thanks Again ======================= Webmaster http://www.linuxuser.8m.com Webmaster http://www.teammajestic.8m.com Asst. Webmaster http://www.ptm.com Co-Author - Linux Book For Newbies. "The Only Person To Hear Both Sides Of A Argument Is The Guy In The Apartment Next To Yours!"