Introduction to Packet Structure in Scapy

Explore packet structure in Scapy and some of the crucial fields to set when building response packets to match a request.

The OSI and TCP/IP network models

Developing servers and honeypots in Scapy requires the ability to develop legitimate responses to received requests. A key part of this is understanding the various layers of a network packet and how they relate between requests and responses.

A good starting point for this is the OSI and TCP/IP models, which describe the theory of how networking stacks work. The image below compares these two models:

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