— Exhibit —
user@router> show ospf database
Area 0.0.0.1
Type ID Adv Rtr Seq Age Opt Cksum Len
Router 172.24.255.1 172.24.255.1 0x800000d4 182 0x22 0x59f3 36
Router 172.24.255.2 172.24.255.2 0x800000d4 177 0x22 0x57f2 36
Router *172.24.255.4 172.24.255.4 0x800000dc 176 0x22 0x75fa 72
Network 172.24.124.2 172.24.255.2 0x80000007 177 0x22 0x7957 36
Summary 172.24.13.0 172.24.255.1 0x80000004 2370 0x22 0x3f62 28
Summary 172.24.23.0 172.24.255.1 0x80000002 471 0x22 0xdeb9 28
Summary 172.24.255.1 172.24.255.1 0x800000cb 2037 0x22 0x2bbb 28
Summary 172.24.255.2 172.24.255.2 0x800000cc 487 0x22 0x19ca 28
Summary 172.24.255.3 172.24.255.1 0x80000003 140 0x22 0xb2f9 28
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern *1.47.82.0 172.24.255.4 0x80000002 1037 0x22 0x4225 36
Extern *100.0.0.0 172.24.255.4 0x80000001 2643 0x22 0xfc88 36
user@router> show ospf neighbor
Address Interface State ID Pri Dead
172.24.124.2 ge-0/0/1.0 Full 172.24.255.2 128 36
172.24.124.1 ge-0/0/1.0 Full 172.24.255.1 128 30
user@router> show ospf interface ge-0/0/1.0 extensive
Interface State Area DR ID BDR ID Nbrs
ge-0/0/1.0 PtToPt 0.0.0.1 0.0.0.0 0.0.0.0 2
Type: P2MP, Address: 172.24.124.4, Mask: 255.255.255.0, MTU: 1500, Cost: 1
Adj count: 2
Hello: 10, DeaD. 40, ReXmit: 5, Not Stub
Auth type: None
Protection type: None
Topology default (ID 0) -> Cost: 1
user@router> show route protocol ospf table inet.0
inet.0: 11133 destinations, 11135 routes (11133 active, 0 holddown, 0 hidden)
+ = Active Route, – = Last Active, * = Both
224.0.0.5/32 *[OSPF/10] 1w0d 00:01:14, metric 1
MultiRecv
— Exhibit —
Refer to the Exhibit.
Referring to the exhibit, why are the OSPF routes missing from the routing table for this router?
A.
mismatching OSPF interface type with the neighbor
B.
MTU mismatch with the neighbor
C.
incorrect IP address configured on the interface
D.
no Type 4 LSAs in the OSPF database
Explanation: