Default routing in OSPF

SB-K

Good Day,

I am trying to figure out how to inject a default route in ospf.

If it is single autonomous system for example area 0 do you use both the ip route command and the default-information originate command? or should the default-information originate command be used only when you are trying to share the default route informtion between autonomous systems.


Thank you.

Forsaken_GA

In order to inject a default route, you have to have a default route. Whether that's through the ip route command to statically define one, or through a route passed down through another routing protocol makes no difference.

default-information originate is what will actually inject the default route into ospf.

Where to inject the default route is more of a design consideration.