sylkie: IPv6 Address Spoofing

A command line tool and library for testing networks for common address spoofing security vulnerabilities in IPv6 networks using the Neighbor Discovery Protocol.


  • libseccomp
  • json-c

Basic usage

The following describes the basic usage of sylkie. Run sylkie -h or sylkie <subcommand> -h for more details.

DoS (Router Advert)

The basic usage of the sylkie router advert command is listed below. This command will send a Router Advertisement message to the given ip or the all nodes multicast addres causing the targeted nodes to remove <router-ip>/<prefix>from their list of default routes.
sylkie ra -interface <interface>
    –target-mac <mac of router>
    –router-ip <ip of router>
    –prefix <router prefix>
    –timeout <time between adverts>
    –repeat <number of times to send the request>

How it works:

The router advert (ra) command attempts to DoS a network by sending “forged” Router Advertisement messages to either a targeted address (if one is provided) or the link local scope all-nodes address ff02::1. The “forged” Router Advertisement contains Prefix Information with the lifetimes set to 0. The message also contains the Source Link-Layer Address. This should cause the targeted address or all link local nodes to remove the targetted router from the list of default routes.

Address spoofing (Neighbor Advert)

sylkie na -i <interface>
    –dst-mac <dest hw addr>
    –src-ip <source ip>
    –dst-ip <dest ip address>
    –target-ip <target ip address>
    –target-mac <target mac address>
    –timeout <time betweeen adverts>
    –repeat <number of times to send the request>
Download Now and start spoofing IPv6 addresses.
Ehacking Staff
With more than 50 global partners, we are proud to count the world’s leading cybersecurity training provider. EH Academy is the brainchild of Ehacking, which has been involved in the field of training since the past Five years and continues to help in creating professional IT experts.

Most Popular

What Makes ICS/OT Infrastructure Vulnerable?

Infrastructure security for operational technologies (OT) and industrial control systems (ICS) varies from IT security in several ways, with the inverse confidentiality, integrity, and...

Everything You Must Know About IT/OT Convergence

What is an Operational Technology (OT)? Operational technology (OT) is a technology that primarily monitors and controls physical operations. It can automate and control machines,...

Understand the OT Security and Its Importance

This article discusses OT security and why it is essential for protecting industrial systems from cyberattacks. We will also discuss common control objectives that can...

What is Deepfake, and how does it Affect Cybersecurity?

Producing deepfake is easy. It is hard to detect. They operate with a description of reality rather than reality itself (e.g., a video). Any...