Hi,
I remember hearing that there was a problem with multicasting due to a
bug in the Linux kernel 2.0.36. This should be solved with the 2.0.37
kernel (and perhaps a special patch, don't remember exactely). Try to
check the blackdown site for details.
Matthias Pfisterer
Larry Hsiao wrote:
>
> Hi,
>
> I have an applet that performs a multicast function on a Linux machine.
> The browser used is Netscape communicator 4.51. The applet is a signed
> applet and has passed the "Multicast" privilege checking when the applet
> is executed. Right after the privilege checking, the applet attempts to
> instantiate a MulticastSocket with the following code:
> DatagramSocket socket = new MulticastSocket(6666);
> At this point, a SocketException occurrs.
>
> The Stack traces are:
> invalid DatagramSocket option
> at java.net.PlainDatagramSocketImpl.setOption
> (PlainDatagramSocketImpl.java:156)
> at java.net.MulticastCreate (MulticastSocket.java:111)
> at java.net.DatagramSocket. (DatagramSocket.java:115)
> at java.net.DatagramSocket. (DatagramSocket.java:101)
> at java.net.MulticastSocket. (MulticastSocket.java:92)
> at inria.net.MulticastSession.run (MulticastSession.java:205) -- applet
> code
> at java.lang.Thread.run (Thread.java:504)
>
> Note: The same applet running with Netscape communicator 4.51 under
> Windows is OK.
>
> Can someone tell me what's the cause of this problem?
>
> Thanks.
>
> Larry Hsiao
> Foresyte Technologies, Inc.
>
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