[En-Nut-Discussion] About Multicast packet receive

iVesWorking ivesworking at hotmail.com
Thu Jun 10 11:28:33 CEST 2004

did u mean i need to modify the driver to receive the multicast packet?
u say about the driver not support multicast, but i able to receive under
ff:ff:ff:ff:ff:ff mac address,
and also i able to send multicast packet, but not on receive it with if it
was not using standard ff:ff:ff:ff:ff:ff mac address. (like cisco router


> Ives,
> your observation is correct. In the current status
> the Ethernet drivers do not support multicast.
> Ethernet controllers have special registers for
> multicast mode, which need to be set during
> initialization. In case you want to try that,
> I'd be very interested in the results.
> Harald
> At 09:27 10.06.2004 +0100, you wrote:
> >I having problem on receive multicast UDP packet other then the
> >ip and *.*.*.255.
> >but I was able to send boardcast UDP packet other then by
> >little modify on ipout.c (net library) with multicast mac address.
> >i do some tracing on packet arrive(ethernut board), found that all
> >packet other then x.x.x.255 or  been filter out(maybe it
> >only recognize ff:ff:ff:ff:ff:ff mac address as boardcast packet and
> >other out, but  i am not sure what happen), It dont have any response on
> >ethin.c .
> >
> >any expert know what happenning, and how to enable me to do some
> >implementation.
> >
> >iVes
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