97 
   DR: 10.2.1.1  BDR: 10.2.1.2  MTU: 0 
   Options is 0x02 (-|-|-|-|-|-|E|-) 
   Dead timer due in 32  sec 
   Neighbor is up for 06:03:12 
   Authentication Sequence: [ 0 ] 
   Neighbor state change count: 5 
# Display OSPF routing information on Router A. 
[RouterA] display ospf routing 
 
          OSPF Process 1 with Router ID 10.2.1.1 
                   Routing Tables 
 
 Routing for Network 
 Destination        Cost     Type    NextHop         AdvRouter       Area 
 10.2.1.0/24        1        Transit 10.2.1.1        10.2.1.1        0.0.0.1 
 10.3.1.0/24        2        Inter   10.1.1.2        10.3.1.1        0.0.0.0 
 10.4.1.0/24        2        Stub    10.2.1.2        10.4.1.1        0.0.0.1 
 10.5.1.0/24        3        Inter   10.1.1.2        10.3.1.1        0.0.0.0 
 10.1.1.0/24        1        Transit 10.1.1.1        10.2.1.1        0.0.0.0 
 
 Total Nets: 5 
 Intra Area: 3  Inter Area: 2  ASE: 0  NSSA: 0  
# Display OSPF routing information on Router D. 
[RouterD] display ospf routing 
 
          OSPF Process 1 with Router ID 10.5.1.1 
                   Routing Tables 
 
 Routing for Network 
 Destination        Cost     Type    NextHop         AdvRouter       Area 
 10.2.1.0/24         3       Inter   10.3.1.1        10.3.1.1        0.0.0.2 
 10.3.1.0/24         1       Transit 10.3.1.2        10.3.1.1        0.0.0.2 
 10.4.1.0/24         4       Inter   10.3.1.1        10.3.1.1        0.0.0.2 
 10.5.1.0/24         1       Stub    10.5.1.1        10.5.1.1        0.0.0.2 
 10.1.1.0/24         2       Inter   10.3.1.1        10.3.1.1        0.0.0.2 
 
 Total Nets: 5 
 Intra Area: 2  Inter Area: 3  ASE: 0  NSSA: 0 
# Ping 10.4.1.1 to test reachability. 
[RouterD] ping 10.4.1.1 
Ping 10.4.1.1 (10.4.1.1): 56 data bytes, press escape sequence to break 
56 bytes from 10.4.1.1: icmp_seq=0 ttl=253 time=1.549 ms 
56 bytes from 10.4.1.1: icmp_seq=1 ttl=253 time=1.539 ms 
56 bytes from 10.4.1.1: icmp_seq=2 ttl=253 time=0.779 ms 
56 bytes from 10.4.1.1: icmp_seq=3 ttl=253 time=1.702 ms 
56 bytes from 10.4.1.1: icmp_seq=4 ttl=253 time=1.471 ms