Configuring the Advertisement of the Default Route

You can use the default-information originate command to enable RIP, OSPF, or BGP to advertise a default route (0.0.0.0/0) that exists in the IP routing table. If a default route does not exist in the IP routing table for OSPF, then you can specify the always option for OSPF to generate a default route.

You can use the default-information originate command to generate a default route to an IS-IS domain.

To enable RIP, OSPF, or BGP to advertise a default route (0.0.0.0/0) that exists in the IP routing table:

host1(config-router)#default-information originate

Use the no version to disable advertisement of the default route.

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