Hmmm... the previous link (below) seems dead. http://www.networkcomputing.com/unixworld/tutorial/11.txt.html#sect2%|%This%|% is the best page i can find for a Tcl ping how-to. Feel free to improve on it. Stevenaaus ---- [Ask, and it shall be given # 9] Here [http://www.arl.army.mil/main/main/default.cfm?Action=20&Page=149] is a pleasant reminiscence on the original ping. [ICMP] <> Networking