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+Handling delayed work is easy now, right? So, time to move on to
+something totally different. How about networking? We have been
+ignoring that part of the kernel, so let us now focus on the network
+side of the kernel, as that is a huge reason for why Linux has taken
+over the world.
+For this task, write a netfilter kernel module that does the following:
+ - monitors all IPv4 network traffic that is coming into the machine
+ - prints the id to the kernel debug log if the network traffic stream
+ contains your id.
+ - properly unregisters you from the netfilter core when the module
+Test this by sending yourself an email with your id in the subject, much
+like the email you need to send back to me.
+Send in the proof and the .c file for the module.