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Re: UDP broadcast inside kernel

On Thu, Dec 07, 2006 at 12:43:07PM +0700, Mulyadi Santosa wrote:
> Hi Jeongki ...
> 
> > I implemented a module using "http://kernelnewbies.org/Simple_UDP_Server";.
> > So, now I can send and receive unicast messages inside kernel.
> > But, I need to send and receive broadcast messages inside kernel.
> > How can I change the code using above one?
> 
> I am not so sure, but IIRC sending to broadcast address such as 
> 192.168.255.255 on 192.168.0.0/16 network will do what you want. As for 
> receiving the broadcast data, I think simply listen to the designated port 
> will do the trick. Mind you again, this is just my guess.

Usually broadcast is a bad idea. I think what you want is multicast with a Class D address.

Look at DVMRP

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