Longest Match Routing Rule

Summary

In summary, making a forwarding decision actually consists of three sets of processes: the routing protocols, the routing table, and the actual process which makes a forwarding decision and switches packets. These three sets of processes are illustrated, along with their relationship, below.

The longest prefix match always wins among the routes actually installed in the routing table, while the routing protocol with the lowest administrative distance always wins when installing routes into the routing table.

https://goduck2.tistory.com/9

[오리뎅이의 라우팅 이야기 - 4] Static Routing의 시작은 PC와 서버