Cisco Support Community
Showing results for 
Search instead for 
Did you mean: 

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

default-information originate

Hi All,

I understand that for a routing protocols to advertise a default route to its neighbors using the "default-information originate" command, ISIS, EIGRP, OSPF (unless using the always keyword) and BGP (requiring further redistribution) needs a default route to already exist in the routing table before advertising a default route through that command, can any one confirm whether RIP requires valid default route in the routing table before originating the default route using this command or not ?

Thanks in advance,

Mohammed Mahmoud.

Cisco Employee

Re: default-information originate

When used with RIP, the "default-information originate" will generate the default route whether it is present in the RIB or not.

You need to use a route-map if you wish to conditionally generate the default route.

Hope this helps,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
México móvil: +52 1 55 8312 4915
Cisco México
Paseo de la Reforma 222
Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600

Re: default-information originate

Hi Harold,

Thanks alot, what about IGRP and EIGRP ?

Hall of Fame Super Bronze

Re: default-information originate


EIGRP does not provide conditional advertisement features such as RIP, OSPF or BGP. EIGRP does not advertise its default route by using default information originate.

With EIGRP you need to create a default route or an interface summary route, for instance

router eigrp 10

redistribute static

ip route null0


interface s0/0

ip summary-address eigrp 10


Re: default-information originate

Hey there,

I've confirmed what you've said but with only one thing to add; Normally, exterior/default routes are always accepted and default information is passed between EIGRP processes when redistribution occurs. when doing so, we still need to confirm the following command to either allow the sending or receiving of a default route (should be there by default):

Router(config-router)#default-information ?

allowed Allow default information

in Accept default routing information

out Output default routing information

Note: The default network of used by Routing Information Protocol (RIP) cannot be redistributed by IGRP but can be redistributed by EIGRP.

Thanks very much.

CreatePlease to create content