If you're new to joke RFCs, I suggest reading up on RFC 3514, a suggestion that malicious IP packets should be required to set the high order bit of the IP frag

If you're new to joke RFCs, I suggest reading up on RFC 3514, a suggestion that malicious IP packets should be required to set the high order bit of the IP fragment offset field, which is to be designated the "evil" bit. This significantly simplifies implementing effective network monitoring.