Blackhole Experiment
The Blackhole experiment blocks inbound and outbound network traffic. It works by dropping IP packets at the transport layer (Layer 4) of the OSI model. You can specify the types of traffic to impact using additional arguments, including port, hostname, and IP address.
Linux
The Blackhole Gremlin uses existing traffic policing features in the Linux Kernel to drop targeted IP packets.
This Gremlin does not interact with <span class="code-class-custom">iptables</span>, and so it does not interfere with any existing <span class="code-class-custom">iptables</span> rulesets.
This Gremlin requires the <span class="code-class-custom">NET_ADMIN</span> capability, which is enabled for Gremlin by default at installation time. See capabilities(7)
Windows
The Blackhole Gremlin uses the Windows Filtering Platform to drop targeted IP packets.