multicasting in MPC8272ADS

hi,

I have written a multicast test application in which there is a multicast sender and receiver.
The multicast sender sends multicast packets on a specified interface and the multicast
receiver receives multicast packets. I have tested this application on my network with
x86 machines. But when I run a multicast receiver (which has been cross
compiled for
MPC8272ADS) on my MPC board, it is unable to receive multicast packets (the recvfrom
call is waiting for ever for packets to arrive). The MPC board is able to send multicast
packets to without any problems. The /proc/net/dev_mcast shows the appropriate
entries for the multicast address being enabled for the interface of interest(esentially
group joining appear to work).

My configuration is a MPC8272ADS board rp_filter =0 for all interfaces (ie no source
filtering).I am wondering where the problem could be, configurations or the ethernet
driver itself? Are there some known issues ?

By the way with loopback enabled the reception of packets works in case the sender and receiver are on the same machine

waiting for ur comments..

thnks

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