i'm learning about networking on a site and there says there are 3 types of sending data:
unicast, multicast and broadcast
in the unicast case the IP layer encapsulates the IP destination(let's say "derp"). the interesting fact i've read about the unicast is that all machines within the same network will recieve the packet that is supposed to arrive at derp, but only derp will 'accept' the packet as the rest of the machines will drop it seeing the destination IP doesn't match with its IP.
so, i suppose kernel does check the ip matching which means it also drops the packet if it doesn't match.
what i'm interested in: "is it possible to catch the packets denied by kernel?" if yes, how?
All 4 Replies
Be a part of the DaniWeb community
We're a friendly, industry-focused community of 1.21 million developers, IT pros, digital marketers, and technology enthusiasts learning and sharing knowledge.