O'Reilly logo

Learning Penetration Testing with Python by Christopher Duffy

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

The Scapy library for Python

Welcome to Scapy, the Python library that is designed to manipulate, send, and read packets. Scapy is one of those tools that have a large amount of applicability, but it can seem complex to use. Before we set off, there are some basic rules to understand about Scapy that will make creating scripts much easier.

Firstly, refer to the previous sections to understand the TCP flags and how they are represented in Scapy. You will need to look at the flags mentioned earlier and their relevant positions to use them. Secondly, when Scapy receives responses for a packet sent, the flags are represented by binary bits in octal format within the 13th octet of a TCP header. So, you have to read the response based on this information. ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required