Small tool to check if your switching, monitoring and/or intrusion detection system is working correctly and does not permit or report such things as this tool is trying to do.
This software may only be used for good, not evil.
gcc arpbridge.c -o arpbridge
./arpbridge [-h] [-d] [-i interface] [-p port] [-l|-b {bridge-mac}] {remote-mac} {gateway-mac} {remote-ip} {gateway-ip}
arpbridge tries to hook into the public visible communication between two entities by sending gratious ARP to both of them and acting as a man in the middle. Each entity is redirected to a virtual MAC in the middle and traffic is forwarded transparently between them.
If you are operating a network you should really be aware of this technique and install some counteractions against it. Use this tool to make sure that your effort was worth it. If you are part of a red team, go ahead, take the victory and simply love it. If you are evil at all, go away and stop trying to do nasty stuff!
Whoever you are, always use strong encryption!
Copyright (C) 2018 Bernd Holzmüller
Licensed under a slightly modified GLWTPL. See this LICENSE for details.