The figure displays a portion of the IPv4 routing tables for R1 and R3.

In the routing tables for R1 and R3, notice the routing source and administrative distance for the new default route learned using EIGRP. The entry for the EIGRP learned default route is identified by the following:

Notice that R1 selects R3 as the successor to the default route because it has a lower feasible distance. Default routes provide a default path to outside the routing domain and, like summary routes, minimize the number of entries in the routing table.