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Network packet consisting of routing information and a payload. Most commonly an Internet Protocol (IP) packet. For questions about packet vulnerabilities, or tools like wireshark that directly manipulate packets. Related tag: [network].

93
votes
The OSI model, that categorizes communication protocols into successive layers, is just that: a model. It is an attempt at pushing a physical reality into neatly defined labelled boxes. Nobody ever gu …
answered Jul 7 '15 by Tom Leek
3
votes
Low-level encryption, for arbitrary packets, is called a VPN. If your wireless router implements IPsec, you can use that. This will raise a few tricky questions, of course (key management, authenticat …
answered Apr 15 '13 by Tom Leek
29
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on the destination address, so if you send a packet with a fake source address, it may still reach the destination. Some routers may be offended at seeing a packet with an "impossible" source address … packet will go and reach its destination. Any answer, however, will go to the alleged source address, not the real one. The attacker won't see the responses, and thus must work blindly. This is …
answered Apr 17 '14 by Tom Leek