You can use PT Anywhere as a standalone educational tool here. The open source code is available on Github. You can learn how to install it in your own server here. You can download the PT Anywhere widget for use within an iBook here. You can find more information about the use of HTML5 widgets in iBooks here. The FORGE iBook that includes the PT Anywhere widget is available to download for free here.
PT Anywhere is featured in a free online course entitled “Discovering computer networks: hands on in the Open Networking Lab”, where learners can explore how computer networks operate, discover how data is sent around the internet, as well as put their understanding into practice using the PT Anywhere network simulator to create their own simulated computer networks. Upon completion of the course, learners will earn a free statement of participation issued by The Open University.