Administrator Guide

Layer 3 Routing Commands 1739
default-information originate (Router OSPF
Configuration)
Use the default-information originate command in Router OSPF
Configuration mode to control the advertisement of default routes. Use the
no form of the command to return the default route advertisement settings
to the default value.
Syntax
default-information originate [always] [metric metric-value ] [metric-type
type-value]
no default-information originate [metric] [metric-type]
• always —Always advertise default routes.
•
metric-value —The metric (or preference) value of the default route.
(Range: 1–16777214)
•
type-value —One of the following:
1 External type-1 route.
2 External type-2 route.
Default Configuration
The default configuration is no default-information originate. The default
metric is none and the default type is 2.
Command Mode
Router OSPF Configuration mode.
User Guidelines
The only routers that actually have Internet connectivity should advertise a
default route. All other routers in the network should learn the default route
from the routers that have connections to the Internet. The edge router
should also have a static default route configured with an upstream ISP router
as the destination. The always keyword will cause the router to advertise a
default route to its neighbors, even if no valid default route is known.
2CSNXXX_SWUM204.book Page 1739 Monday, January 25, 2016 1:25 PM