Routers contain interfaces to which networks are connected, and to which packets are forwarded using the routing tables. The routing tables are populated either manually, by entering static routes, or dynamically, by using routing protocols. While static routes cannot be updated automatically, dynamic routes are updated automatically, by exchanging the routing information among routers. That sure does make dynamic routing more favorable than static routing, particularly in large and complex networks. That said, this section explains static routing and dynamic routing.
Routing types
Static routing
You may have occasionally heard expressions like a static IP address, a static DNS record, an IP address reserved in DHCP, and so...