On Monday 05 April 2004 11:02 pm, George Gao wrote:
> Hi there,
> I'm working on the sample Netfilter driver to put something together
> for a prototype. I ran into a problem which I wish you can help me out.
> When I set my input filter hook number to NF_IP_PRE_ROUTING, I saw local
> generated IP multicast/Broadcast packets and inbound packets from network.
> Is there any way to differentiate a local IP Multicast or IP brocast from
> an inbound mal-formed packet with the exact same content? Thanks much in
> advance!
Um, what do you mean by "malformed"?
The most obvious difference I can think of between a Multicast packet, a
Broadcast packet, and a "normal" (Unicast) packet is the destination address,
so is there some reason why you can't use this to distinguish them?
Regards,
Antony.
--
"Linux is going to be part of the future. It's going to be like Unix was."
- Peter Moore, Asia-Pacific general manager, Microsoft
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