I have a router learning a default route from a neighbor OSPF router. The database entry looks as follows:
Router#sh ip ospf data ext 0.0.0.0
OSPF Router with ID (18.104.22.168) (Process ID 100)
Type-5 AS External Link States
LS age: 1810 Options: (No TOS-capability, DC) LS Type: AS External Link Link State ID: 0.0.0.0 (External Network Number ) Advertising Router: 172.16.0.1 LS Seq Number: 80000002 Checksum: 0xAD1E Length: 36 Network Mask: /0 Metric Type: 2 (Larger than any link state path) TOS: 0 Metric: 1 Forward Address: 10.0.0.1 External Route Tag: 100
The forward address is on a subnet directly connected to this router (10.0.0.0/24). This is a vlan stretched between two datacenters.
I'm not sure why the default route will not install into the RIB. If I remove the 10.0.0.0/24 interface on the upstream OSPF router so that the forward address is all zeros, the route is then installed into the RIB, but I need that interface to be running OSPF.
Does anyone have an idea why the default route will not install into the RIB? I appreciate the help.
The route map matches a dummy route in the RIB that tracks an ICMP IPSLA. The SLA is up, dummy route is installed into RIB and default route originated, external LSA is sent and received. Just can't figure out why it can't be installed into the RIB
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