Network Border Routers

Definition ∞ Network border routers are specialized networking devices positioned at the perimeter of an autonomous system or network, connecting it to external networks, such as the internet. Their primary function involves routing traffic between internal and external domains, enforcing security policies, and managing network address translation. These routers serve as a critical control point for all incoming and outgoing data flows. They are essential for maintaining network integrity and connectivity.
Context ∞ In the context of blockchain networks and digital asset infrastructure, network border routers play a vital role in securing access and managing data flow for nodes and exchanges. News related to network security often references the configuration and protection of these routers against external attacks. Their proper functioning is critical for preventing denial-of-service attacks and unauthorized access to blockchain services.