Outbreak Labs

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Broadcast Relay

The Problem

Many applications, largely games, use broadcast traffic to locate peers. While this is fine for simple network topologies, such as two computers connected by a home router, it is insufficient for more complex scenarios in which traffic must cross subnets.

The Solution

The Broadcast Relay solves the problem of broadcast traffic needing to cross subnets by detecting and forwarding broadcast messages generated locally to specific addresses.

How it Works

The Broadcast Relay uses technologies from Packet Gremlin and WinPcap to operate in a method similar to a firewall, inspecting network traffic and pulling out packets which meet specific criteria. These packets are then modified to route to the configured addresses and retransmitted.