When you look at the routing table on a Cisco router, you will see one of many things
All the way to the left, you will see certain letters and numbers, this all depends on what kind of route made it into the routing table.
D = EIGRP
R = RIPv2
O = OSPF
S = Static
C = Directly Connected
B = BGP
You will then see the route prefix, such as 192.168.1.0, followed by a [AD|Metric]
The AD is the Administrative Distance of the route, and the metric associated with the route.
If you use 'show ip route', it will show all routes in the routing table. You can also include parameters such as, 'show ip route [eigrp, ospf, rip] etc.
If you need anything else let me know.
