The Multicast Tester is a simple tool for users to test their IP Multicast connectivity. For more information about how the tester works and how you can incorporate it into your site, see our Developers Page.

• You may opt to click the "Grant Always" or "Remember this decision" if you will be running the test more than once.
• Older versions of Netscape will prompt you three times. You will need to click "Grant" on each dialog box.
• On a Macintosh you must be running OS X.