Once all routers know about all networks, a routed protocol can be used to send user data (packets)
through the established enterprise. Routed protocols are assigned to an interface and determine the
method of packet delivery. Examples of routed protocols are IP and IPv6.
The administrative distance (AD) is used to rate the trustworthiness of routing information received on a
router from a neighbor router. An administrative distance is an integer from 0 to 255, where 0 is the most
trusted and 255 means no traffic will be passed via this route.