Thanks for the reply Alex.
I'll try to modify IPOutgoingPacket() to support the sending of multicast
packets. If anyone knows of another way of sending multicast packets, please
don't hesitate to let us know.
Thanks
Peter
________________________________________
From: Alexis Malozemoff [EMAIL PROTECTED]
Sent: Sunday, December 07, 2008 5:04 PM
To: Peter Ochodo
Cc: Muthucumaru Maheswaran, Prof.; gini@cs.mcgill.ca
Subject: Re: [gini] how do I broadcast a multicast packet?
IPOutgoingPacket() is probably treating 224.0.0.1 as any other IP
address since multicasting isn't implemented, which is why it sends
out the ARP packets.
Alex
On Sat, Dec 6, 2008 at 3:42 PM, Peter Ochodo
<[EMAIL PROTECTED]> wrote:
> Hi Sir,
>
> I am trying to send an igmp query from the router to hosts in a subnet. After
> bundling up the igmp packet into an ip packet, then invoking
>
> IPOutgoingPacket(out_pkt, dst_ip, igmpPacketLength, 1, IGMP_PROTOCOL);
> //{please note that dst_ip is 224.0.0.1, and IGMP_PROTOCOL = 2}
>
> then opening up wireshark, I note that the router uses the arp protocol to
> send a broadcast asking for the mac address of a host with IP address
> 224.0.0.1! I'd like the router to broadcast the packet in the subnet, and let
> the interested hosts pick up the packet.
>
> Thanks
>
> Peter
>
>
>
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