Adefault routeis a special type of route used in routing tables to forward packets when no specific route matches the destination IP address. It acts as a "catch-all" route for traffic that does not match any other routes in the routing table.The default route is typically represented as0.0.0.0/0, where:
* 0.0.0.0represents any destination IP address.
* /0indicates a subnet mask of 0 bits, meaning it applies to all possible IP addresses.
Default routes are commonly used in scenarios where a router needs to forward traffic to a gatewayor next- hop device for further processing. This simplifies routing table management, especially in networks with limited or centralized connectivity.
References:
* HCSA-Presales-IP Network Study Guide, Section: "Routing Basics and Default Routes."
* Huawei Router Product Documentation, Routing Table Configuration.