is receiving local multicast possible with nichelite?

[mattyr]

Hi,

I am trying to implement E1.31 (DMX over ethernet) with an mcf52233.  It seems opening a UDP connection in the nichelite stack that comes with the 52233 demo will not receive multicast packets.  I know that nichelite does not support IGMP, but I understand receiving multicast on a local connected network should be possible without IGMP.  So I guess I have 3 questions...

1) Is it possible with nichelite to do what I desire, and I could just be doing something wrong?

2) Is there a free tcpip stack that people are aware of that will support receiving local multicast?

3) Even better than 2, Is there a free tcpip stack usable on the 52233 that supports IGMP?

Thanks in advance for any help offered

[PetrL]

Hi, You can try freescale MXQ Rtos. It is free RTOS for Freescale parts and it is coming with integrated Tcp IP stack. We have 1588 protocol running with it, which is basically UDP Multicast based communication. You can download it here: http://www.freescale.com/mqx PetrL