Selfishnet V0.1 | Beta

The defining feature of SelfishNet is that it operates entirely from the user's PC. You do not need the username or password to the network’s physical router to enforce these limits. Technical Requirements and Installation

Despite its "beta" designation and having been around for over a decade without significant updates, the tool remains relevant due to its raw effectiveness and simplicity. While later versions (like SelfishNet V3) exist and continue development on GitHub, the v0.1 Beta version is often what's found on various hosting sites and is the version referenced in many older tutorials and discussions. selfishnet v0.1 beta

Whether you view it as a hero for reclaiming a lag-filled connection or a villain for its ability to block others, Selfishnet was a pioneer. For those exploring network fundamentals, it serves as a practical, if crude, introduction to concepts like ARP spoofing and bandwidth shaping. While more modern and reliable options are now available, Selfishnet remains a notable and powerful example of what can be accomplished with a few hundred kilobytes and deep knowledge of how local networks communicate. For anyone who values control over their internet experience, understanding what Selfishnet does is a glimpse into the very foundation of how data flows in our connected world. The defining feature of SelfishNet is that it

At this point, you have full control. You can: While later versions (like SelfishNet V3) exist and

In a typical LAN, devices communicate using MAC addresses (hardware addresses), not IP addresses. When a computer wants to send data to the router (gateway), it sends an ARP request asking, "Who has the IP address 192.168.1.1?" The router replies with its MAC address, and the computer stores this pairing in its ARP cache.

Furthermore, due to its methods, many antivirus programs flag SelfishNet as a "hacktool" or a potentially unwanted program (PUP). This is not necessarily a sign that the program is malware, but rather a warning that its functionalities are the same as those used by malicious actors to perform man-in-the-middle attacks.