Hi all,
I wanted to use netfilters to get IP packets not necessarily destined to
my computer's MAC.
So, I commented this check:
/*
if (skb->pkt_type == PACKET_OTHERHOST)
goto drop;
*/
in the function ip_rcv(...) in net/ipv4/ip_input.c
And it appears to work OK. The hook caught packets with whatever dst-MAC.
I must say that I had very limited checks with this "patch"; it was quite
an ordeal to convice another computer in my lab to fabricate packets as I
needed.
so,
1. Do you think this should work? Do you see any flaws?
2. Do you know how I can debug this on my (one) computer?
I thought of using UML+bridge-util but brctl delivers packets only
to the host they are intended.
3. I saw several threads about similar topics in the past, so if it helps
anybody ...
Hayim.
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