The table in Figure 1 displays the shortest path and the accumulated cost to reach the identified destination networks from the perspective of R1.

The shortest path is not necessarily the path with the least number of hops. For example, look at the path to the R5 LAN. It might be assumed that R1 would send directly to R4 instead of to R3. However, the cost to reach R4 directly (22) is higher than the cost to reach R4 through R3 (17).

Observe the shortest path for each router to reach each of the LANs, as shown in Figures 2 to 5.