INTRO TO ROUTING AND IPV4 ROUTING TABLE

Directly Connected

These routes are automatically added by the router, provided the interface is active and has addressing.

Remote

These are the routes the router does not have a direct connection and may be learned Manually and Dynamically

Manually

with a static route

Dynamically

by using a routing protocol to have the routers share their information with each other

Default Route

this forwards all traffic to a specific direction when there is not a match in the routing table

Static Routing

It must be configured manually and requires manual adjustment if the network topology changes. It is suitable for small, non-redundant networks and is often used alongside dynamic routing protocols to configure a default route.

Dynamic routing

It automatically discovers remote networks, maintains up-to-date routing information, chooses the best path to the destination, and finds new best paths when the network topology changes. It can also share static default routes with other routers.

L

Represents a directly connected IP address assigned to the router’s interface. This is the IP of the router itself on that interface.

C

Represents a directly connected network on one of the router’s interfaces. This indicates the router can reach this network without going through another router.

S

Represents a manually configured route by the network administrator. It specifies a fixed path to reach a network.

O

Represents a route learned dynamically through the OSPF (Open Shortest Path First) routing protocol.

D

Represents a route learned dynamically through the EIGRP (Enhanced Interior Gateway Routing Protocol).