KickThemOut v3 is a complete ground-up rewrite in Rust of a classic network administration tool. It lets you selectively disconnect devices from your local network using ARP spoofing — a technique that manipulates the Address Resolution Protocol to intercept or disrupt traffic between devices and the gateway.
The "v3" represents a full standalone rebuild, not an incremental update. The goal was to take the core concept of network device management and deliver it with modern tooling: Rust's memory safety, an interactive terminal interface, and automatic cleanup when you're done.
Scans your /24 subnet using ARP requests, identifying every connected device with its IP, MAC address, and hardware vendor.
Navigate discovered devices with arrow keys and spacebar. Pick individual targets, select multiple devices, or choose the entire network.
Sends crafted ARP packets that poison the target's ARP cache, redirecting traffic away from the real gateway and effectively disconnecting the device.
When you stop the tool, ARP tables are automatically restored to their correct state. No permanent damage to the network.
ARP operates on trust — devices accept ARP replies without verification. KickThemOut exploits this by sending false ARP replies that associate the gateway's IP with an invalid MAC address, causing the target device to send traffic to a non-existent destination.
Network tools that craft raw packets need to be reliable and precise. Rust's ownership model prevents the memory bugs that commonly plague low-level networking code in C. The tool requires root/sudo access for raw packet manipulation, so safety guarantees at the language level are especially valuable here.