--002354186d7412ec25049eb6cb31 Content-Type: text/plain; charset=ISO-8859-1 This question comes up on the CocoaAsyncSocket list periodically. Robbie Hanson's post (the third one down), explains what is happening at the OS level: http://groups.google.com/group/cocoaasyncsocket/browse_thread/thread/8703a9ae74d5104f/a2297fe10c376c01 Not related to ruby, but it might help you understand what's going on. Lou --002354186d7412ec25049eb6cb31--