[c-nsp] OSPF Default Route Injection

Kevin Hatem Kevin.Hatem at pgs.com
Thu Mar 18 13:34:01 EDT 2010


If two routers are injecting a default route under OSPF then each router will retain their own default route in the route table as each other's injected default route has the same distance as its self advertised default.  You could set a higher/lower distance on inbound advertisements from the neighbors to influence the installation of the default route into the RIB.

HTH
-kevin

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of David Granzer
Sent: Thursday, March 18, 2010 09:13
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] OSPF Default Route Injection

Hello,

please could someone explain what exactly command "default-information
originate always" under ospf process works ?  When you have more than
one router configured with this default route injection is correct
behavior that you don't see on these routers default route in their ip
routing table from other routers and you see only external lsa for
0.0.0.0 in ospf database ?

Thanks,
David
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