Creating a packet with Scapy

As we know, the basic unit of network communication is a packet. So we can start by creating a packet with Scapy. Scapy creates packets in layers; each layer is nested inside its parent layer.

Getting ready

As we require a Scapy module to be installed in the environment, make sure to install it with the pip command:

pip install scapy

After installation, make sure it's working by issuing the scapy command in your Terminal:

scapyWelcome to Scapy (3.0.0)>>>

This will open up an interactive Terminal for Scapy. You can also use this for basic debugging of Scapy scripts. A list of all the protocols supported by Scapy is as follows:

>>> ls()

Similarly, we can get the details and parameters in each protocol, as follows:

>>> ls(UDP)

How to do it...

Following are the steps to create packets with the scapy module:

1. Create a new file called scapy-packet.py and open it in your editor.
2. As usual, import the scapy module and pprint for better readable printing:

from...