V3.0.0 Windows - Selfishnet

SelfishNet v3.0.0 is a lightweight, portable network management tool for Windows that allows you to control the internet bandwidth of every device on your Wi-Fi or Ethernet network without needing router admin passwords Quick Setup Guide Prerequisites : Before running the software, you must install

drivers, as the application relies on them to capture network traffic. Run as Administrator

: Since it interacts directly with your network adapter, right-click the executable and select Run as administrator Select Adapter

: Upon launching, a dialog box will appear. Select your active network interface (e.g., your Wi-Fi or Ethernet card) and click Key Features & Usage

Once the main interface opens, you can manage your network with these buttons: Network Discovery (Cloud icon)

: Scans your local network to identify all connected devices, listing their IP and MAC addresses. Start Redirecting (Lightning icon) : Activates the monitoring and control features. Bandwidth Control Download/Upload Cap

: Manually enter a limit (in KB/s) for any specific device to prevent them from hogging the bandwidth.

: Check the "Block" box next to a device to completely cut off its internet access. Important Notes Compatibility

: While originally designed for older versions, it functions on Windows 10 and 11

. If it fails to launch on newer systems, you may need to install .NET Framework 3.5 Temporary Effects

: The limits you set only remain active while the program is running. Once closed, all network speeds return to normal. Anti-Virus

: Some security software may flag it due to its network-sniffing behavior (ARP spoofing), though it is generally considered safe if downloaded from reputable developers or help troubleshooting a specific connection error

Control your internet bandwidth with SelfishNet v3. - GitHub

SelfishNet v3.0.0 is a legacy network management utility for Windows designed to give users granular control over their local area network (LAN). It is primarily known for its ability to identify all connected devices and selectively limit or block their bandwidth consumption. Core Functionality

At its heart, SelfishNet functions as a simplified traffic shaper. It uses ARP spoofing (Address Resolution Protocol) to position your computer as the "gatekeeper" between other devices and the router. This allows you to:

Discover Hosts: View the IP and MAC addresses of every phone, PC, and smart device on your Wi-Fi.

Set Speed Caps: Assign specific download and upload limits (in KB/s) to prevent a single device from "hogging" the connection.

Block Access: Completely drop the connection for specific devices with a single click. Modern Context and Safety

While SelfishNet was a staple for managing home networks in the Windows 7 and 8 eras, it is important to approach version 3.0.0 with caution today:

Driver Requirements: It typically requires WinPcap to function. Since WinPcap is no longer maintained, many users must use Npcap in "WinPcap compatibility mode" to get it working on Windows 10 or 11.

Security Risks: Because the software is no longer officially updated, many "free download" links for SelfishNet are bundled with malware or adware. Always scan the executable with updated antivirus software before running it.

Network Stability: ARP spoofing can be unstable. Using it for long periods can cause network lag or "crash" the connection for everyone, including the host. Better Alternatives selfishnet v3.0.0 windows

Most modern routers now include built-in Quality of Service (QoS) settings. These allow you to prioritize gaming or streaming traffic directly through the router's firmware, which is much more stable and secure than using third-party software like SelfishNet.

Are you trying to troubleshoot a slow connection or are you looking for installation steps to get the software running on a newer version of Windows?

SelfishNet v3.0.0 is a specialized network utility for Windows designed to give you complete control over your local network's bandwidth distribution. By leveraging techniques like ARP spoofing, it allows users to monitor connected devices and limit or entirely block their internet access to ensure a smoother experience for their own machine. Key Features of SelfishNet v3.0.0

SelfishNet is primarily used in environments with shared Wi-Fi where one user may be hogging bandwidth through heavy downloads or streaming.

Real-time Network Discovery: Instantly see a list of all devices (PCs, smartphones, consoles) currently connected to your network, along with their IP and MAC addresses.

Bandwidth Limiting: Assign specific download and upload speed limits to any device on the network to prevent lag in your own tasks.

Device Blocking: Use the "Block" feature to completely sever the internet connection of a specific device without physically touching it.

Lightweight and Portable: The software is typically distributed as a portable application, meaning it does not require a traditional installation process to run. How SelfishNet Works: The Technical Side

SelfishNet operates using ARP (Address Resolution Protocol) Spoofing.

The "Shout": Normally, your router manages traffic by telling devices where to send data.

The Spoof: SelfishNet sends "fake" ARP messages to other devices on the LAN, convincing them that your computer is the gateway (the router).

Control: Once devices start sending their traffic through your computer, SelfishNet can choose to pass that traffic along at a slower speed or drop it entirely. Installation & Setup for Windows

To run SelfishNet v3.0.0 on modern versions like Windows 10 or 11, specific dependencies and permissions are required:

Install WinPcap: This is the most critical requirement. SelfishNet relies on the WinPcap library to capture and send network packets.

Download and Extract: Obtain the latest version (such as v3.0.1) from GitHub or reputable software mirrors.

Administrator Privileges: Because it interacts directly with network protocols, you must right-click the executable and select "Run as Administrator".

Compatibility Mode: If you encounter issues on Windows 10/11, right-click the file, go to Properties > Compatibility, and set it to run in "Windows 7" or "Vista" mode. Security and Ethics Warning

While SelfishNet is a powerful tool for managing your own network, it comes with risks:

Safety: Many versions of SelfishNet found on unofficial sites may contain malware. It is highly recommended to download only from official repositories like GitHub.

Ethics: Using this tool on a public or shared network without permission is often considered unethical and may violate the terms of service of your ISP or workplace.

Detection: Modern routers with "ARP Inspection" or "Source Guard" features can detect and block SelfishNet's spoofing attempts. Releases · abelmez/SelfishNet - GitHub SelfishNet v3

How to Use SelfishNet V3.0.0 (The "Selfish" Workflow)

Once the network scan is complete, you will see a table with columns: IP Address, MAC Address, Hostname, and Status.

3. Schedule Attacks via Task Scheduler

Use Windows Task Scheduler to launch SelfishNet.exe --auto-start --profile "Limit Guests" at 8:00 PM (peak hours) and close it at 12:00 AM. This provides automated bandwidth shaping without manual input.

Scenario 2: Selective Cut-Off (Parental or Nuisance Control)

If a specific device is consuming inappropriate content or hogging bandwidth:

1. Right-click the target IP in SelfishNet’s list.
2. Select “Cut-off Device”.
3. The tool sends de-authenticating ARP replies that map the gateway’s IP to a non-existent MAC address. The target loses internet connectivity.
4. To restore, click “Restore All” or wait for the device to reboot (ARP tables reset).

Key Features of Version 3.0.0

• ARP Spoofing Engine: The core mechanism that intercepts and redirects traffic.
• Bandwidth Prioritization (Selfish Mode) : Allows the user’s machine to consume maximum bandwidth by delaying or dropping packets from others.
• Traffic Monitoring: Real-time graphs showing which IP addresses are consuming data.
• Cut-Off Feature: Selectively disconnect devices from the network (similar to a manual de-authentication attack).
• DNS Spoofing: Redirect specific domain names to alternative IP addresses (a new addition in V3.0.0).
• Portable Execution: No complex server setup required; runs directly from an executable.
• Windows Compatibility: Fully tested on Windows 10 (21H2 and later) and Windows 11 (build 22000+).

Final Warning

With great power comes great responsibility. SelfishNet V3.0.0 is a digital guillotine for your network. Using it maliciously is wiretapping. Using it defensively on your own private network is shrewd.

Always run a network scan first. Never target unknown devices. And for the love of low latency, stop throttling the device named "Printer."

This article is for educational purposes only. The author and publisher assume no liability for misuse of SelfishNet V3.0.0 on Windows. Always respect local laws and network policies.

SelfishNet v3.0.0 Product Report SelfishNet is a lightweight Windows-based networking utility designed to manage and restrict internet bandwidth for other devices on a local area network (LAN). Written in C#, the software uses ARP spoofing (also known as ARP cache poisoning) to intercept traffic, allowing the host computer to act as a gateway for other connected devices. Core Functionality

SelfishNet provides administrative-level control over network traffic through several key features:

Network Monitoring: Scans the LAN to identify all connected devices, displaying their IP addresses and MAC addresses.

Bandwidth Control: Allows users to set specific Download and Upload speed limits for individual devices.

Internet Blocking: Includes a "Block" feature to completely cut off internet access for a selected device.

MAC Spoofing: Offers functions for MAC address manipulation to further manage device visibility. Technical Mechanism

SelfishNet operates by exploiting the Address Resolution Protocol (ARP). It sends unsolicited ARP messages to the network, convincing other devices that the host machine is the default router/gateway.

Man-in-the-Middle (MitM): Once the redirection is successful, all internet-bound traffic from targeted devices passes through the host PC before reaching the actual router.

Dependencies: To function, the software requires WinPcap (or Npcap) to be installed on the system to facilitate low-level network packet capture and injection. System Requirements & Compatibility Operating System: Supported on Windows 7, 8, 10, and 11.

Hardware: Requires a Wi-Fi chipset compatible with monitor mode for wireless network management.

Privileges: Must be run with Administrator privileges to modify network tables and execute ARP commands. Critical Considerations

While effective for bandwidth management, SelfishNet is often viewed with caution by security professionals:

How to limit internet bandwidth using Selfishnet on Windows PC

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Selfishnet windows 10 - Mudftramerit1987's Site on Strikingly Scenario 2: Selective Cut-Off (Parental or Nuisance Control)

SelfishNet v3.0.0 is a specialized, lightweight network management utility for Windows designed to give users granular control over their local area network (LAN) without requiring administrative access to the router. While versions like v3.0.1 have emerged on platforms like GitHub to improve installation ease, v3.0.0 remains a standard reference for users looking to manage bandwidth on shared Wi-Fi or Ethernet connections. Core Functionality and Mechanism

At its heart, SelfishNet is a "traffic shaper." It allows a single user to discover all devices currently connected to their network and see real-time upload and download speeds for each.

ARP Spoofing Technique: The software works by using a method known as ARP poisoning or spoofing. It "tricks" other devices on the network into thinking the computer running SelfishNet is the router. This forces all traffic to flow through that computer first, allowing it to act as a gatekeeper.

Throttling and Blocking: Once devices are identified, the user can manually enter speed limits (in KB/s) for any specific device or check a box to completely block their internet access. Technical Requirements for Windows

To run SelfishNet v3.0.0 on modern systems like Windows 10 or 11, several dependencies and settings are typically required:

WinPcap: This driver is essential for the software to capture and inject network packets.

.NET Framework: Older versions of the software may prompt for the installation of .NET Framework 3.0 or 3.5 to function correctly.

Administrator Privileges: Because it interacts directly with network drivers, the application must be "Run as Administrator".

Compatibility Mode: Users often need to set the executable to "Windows 7" or "Vista" compatibility mode via the file properties for it to launch successfully on newer operating systems. Practical and Ethical Considerations

While SelfishNet is highly effective for "selfishly" reclaiming bandwidth for gaming or streaming in crowded environments like dorms or shared offices, it is not a permanent fix.

Selfishnet v3.0.0 for Windows is a lightweight, portable network management tool designed to monitor and control bandwidth usage across all devices connected to your local network. It is particularly popular for its ability to "kick" users off Wi-Fi or strictly limit their download and upload speeds. Key Features & Performance

Device Discovery: Scans your network and lists all connected devices by IP and MAC address.

Bandwidth Throttling: Allows you to set specific KB/s limits for both upload and download speeds per device.

Network Blocking: Includes a "Block" checkbox to completely cut off internet access for specific users.

Portability: It is a standalone utility that does not require a formal installation process, though it needs administrative rights to function. Technical Requirements

To run Selfishnet v3.0.0 effectively on modern versions like Windows 10 or 11, you must have several dependencies installed: WinPcap: Essential driver for capturing network packets.

.NET Framework 3.0/3.5: Often required for the software to launch.

Administrator Privileges: You must right-click and "Run as administrator" for the network scanning and blocking features to activate. The Verdict

Selfishnet is highly effective for its size but lacks the polish of modern network management software. Its biggest drawback is that it is not a permanent solution; settings only remain active while the application is open on your PC. Additionally, because it uses ARP spoofing to control traffic, some modern antivirus programs or routers may flag it as malicious or block its functionality.

Limitations and Bugs in Version 3.0.0

Despite improvements, SelfishNet V3.0.0 for Windows is not perfect. Known issues include:

• Wi-Fi Limitations: On many wireless adapters, promiscuous mode is disabled by driver defaults. SelfishNet will still capture traffic sent to the router, but may not capture traffic between two other Wi-Fi clients.
• IPv6 Incompatibility: The tool only spoofs IPv4. If your network uses IPv6 internally (most modern routers do), devices may fall back to IPv6 and bypass the spoof.
• Static ARP Entries: Enterprise networks often configure static ARP tables on switches. SelfishNet fails completely in such environments.
• Antivirus Interference: Even with exclusions, background Windows Defender scans may terminate the process mid-session.
• Windows 11 22H2+: Some users report that Microsoft patched raw socket behavior; SelfishNet may require running in compatibility mode (Windows 8).

Scenario B: You want to play Counter-Strike while your partner watches Netflix.

• Find the Smart TV or FireStick IP.
• Instead of "Cut," use the "Limit" slider (bottom of the window).
• Drag to "64 Kbps."
• Result: Their stream buffers indefinitely (or downgrades to 144p). Your ping stays at 20ms.