From: Scott M Vermillion (scott_ccie_list@it-ag.com)
Date: Tue Nov 18 2008 - 20:06:49 ARST
From:
http://www.cisco.com/en/US/tech/tk365/technologies_tech_note09186a0080094a74
.shtml
"Normal Areas
By default, in normal areas OSPF routers don't generate default routes into
their routing domains, even if one exists. To have an OSPF router generate a
default route, use the default-information originate [always] [metric
metric-value] [metric-type type-value] [route-map map-name] command in the
OSPF router configuration mode. This generates an external Type-2 link with
link-state ID 0.0.0.0 and network mask 0.0.0.0, which makes the router an
ASBR."
Cheers,
Scott
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Sachin D
Sent: Tuesday, November 18, 2008 9:35 AM
To: Cisco certification
Subject: Redistributing Default route
Hi
Need help on the below redistribution problem
_ _ _ _ _ _ _ _ _ _ _ _ _
| | |
| RIP | OSPF |
| | |
R1<------------>R|2<----------->R3
| | |
| | |
| _ _ _ _ _ _ _ | _ _ _ _ _ _ _ |
In the above topology
R2 is connected to R1 and R3.
R1 and R2 are running RIP,
R2 and R3 are running OSPF
R1 is sending only default route to R2 via RIP
Hence R2 has only 1 route for RIP subnets
R* 0.0.0.0/0 [120/1] via x.x.x.x, 00:00:03,
But when I am redistributing RIP into OSPF this default route is not getting
redistributed into OSPF i.e R3 is not learning this default route.
On the vice versa if default is generated in OSPF i.e by R3 and
redistributed in RIP on R2 default route is passed to R1 i.e R1 learns the
default route.
Is there any concept I am missing here ?
Why the default route is not getting redistributed into OSPF from RIP ?
Regards
Blogs and organic groups at http://www.ccie.net
This archive was generated by hypermail 2.1.4 : Mon Dec 01 2008 - 08:18:30 ARST