Writing a scapy dissector

New Scapy Layer: Example implemeting HSRP v2

The Scapy library provides powerful capabilities for packet manipulation. However, sometimes, specific protocols or packet types might not be natively supported. In such cases, you can extend Scapy by implementing custom layers. In this article, we’ll walk through the steps of adding support for the Hot Standby Router Protocol (HSRP) version 2 as an example.