R1#sh ip ospf database OSPF Router with ID (1.1.1.1) (Process ID 100) Router Link States (Area 0) Link ID ADV Router Age Seq# Checksum Link count 1.1.1.1 1.1.1.1 412 0x80000003 0x006C0D 2 2.2.2.2 2.2.2.2 417 0x80000004 0x000A69 2 Summary Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 10.0.0.0 1.1.1.1 513 0x80000001 0x00E050 10.0.0.0 2.2.2.2 92 0x80000003 0x00C861 10.0.0.4 1.1.1.1 513 0x80000001 0x00B874 10.0.0.4 2.2.2.2 372 0x80000005 0x009C87 20.0.0.0 1.1.1.1 376 0x80000001 0x0068BD 20.0.0.0 2.2.2.2 561 0x80000001 0x0040E2 20.0.0.4 1.1.1.1 97 0x80000004 0x003AE4 20.0.0.4 2.2.2.2 561 0x80000001 0x001807 Router Link States (Area 100) Link ID ADV Router Age Seq# Checksum Link count 1.1.1.1 1.1.1.1 101 0x80000006 0x00B91F 2 2.2.2.2 2.2.2.2 564 0x80000010 0x00B3EA 2 11.11.11.11 11.11.11.11 104 0x8000000B 0x00581E 2 22.22.22.22 22.22.22.22 386 0x8000000A 0x0022FC 2 Net Link States (Area 100) Link ID ADV Router Age Seq# Checksum 10.0.0.1 1.1.1.1 103 0x80000001 0x00D225 10.0.0.5 1.1.1.1 382 0x80000001 0x00D2F4 20.0.0.1 2.2.2.2 1493 0x80000005 0x007441 20.0.0.5 2.2.2.2 1493 0x80000005 0x0024B9 Summary Net Link States (Area 100) Link ID ADV Router Age Seq# Checksum 0.0.0.0 1.1.1.1 424 0x80000001 0x001B17 0.0.0.0 2.2.2.2 565 0x80000001 0x00FC31 Type-7 AS External Link States (Area 100) Link ID ADV Router Age Seq# Checksum Tag 172.28.48.90 11.11.11.11 1698 0x80000002 0x0040F1 0 172.28.48.90 22.22.22.22 1468 0x80000003 0x002BD5 0 Type-5 AS External Link States Link ID ADV Router Age Seq# Checksum Tag 172.28.48.90 2.2.2.2 179 0x80000002 0x0058E5 0 ****************************************************************** R1# sh ip route 172.28.48.90 Routing entry for 172.28.48.90/32 Known via "ospf 100", distance 110, metric 10, type extern 2, forward metric 1 Last update from 10.0.0.6 on FastEthernet0/1, 00:03:35 ago Routing Descriptor Blocks: * 10.0.0.6, from 2.2.2.2, 00:03:35 ago, via FastEthernet0/1 Route metric is 10, traffic share count is 1 ****************************************************************** R1#sh ip route ospf 20.0.0.0/30 is subnetted, 2 subnets O 20.0.0.4 [110/2] via 10.0.0.2, 00:07:08, FastEthernet0/0 O 20.0.0.0 [110/2] via 10.0.0.6, 00:07:08, FastEthernet0/1 172.28.0.0/32 is subnetted, 1 subnets O E2 172.28.48.90 [110/10] via 10.0.0.6, 00:07:08, FastEthernet0/1 ****************************************************************** R1#sh ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 2.2.2.2 0 FULL/ - 00:00:31 12.0.0.2 Serial0/0.12 22.22.22.22 0 FULL/DROTHER 00:00:35 10.0.0.6 FastEthernet0/1 11.11.11.11 0 FULL/DROTHER 00:00:38 10.0.0.2 FastEthernet0/0 ##################################################################### R2#sh ip ospf database OSPF Router with ID (2.2.2.2) (Process ID 100) Router Link States (Area 0) Link ID ADV Router Age Seq# Checksum Link count 1.1.1.1 1.1.1.1 458 0x80000003 0x006C0D 2 2.2.2.2 2.2.2.2 462 0x80000004 0x000A69 2 Summary Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 10.0.0.0 1.1.1.1 558 0x80000001 0x00E050 10.0.0.0 2.2.2.2 137 0x80000003 0x00C861 10.0.0.4 1.1.1.1 558 0x80000001 0x00B874 10.0.0.4 2.2.2.2 417 0x80000005 0x009C87 20.0.0.0 1.1.1.1 423 0x80000001 0x0068BD 20.0.0.0 2.2.2.2 606 0x80000001 0x0040E2 20.0.0.4 1.1.1.1 143 0x80000004 0x003AE4 20.0.0.4 2.2.2.2 606 0x80000001 0x001807 Router Link States (Area 100) Link ID ADV Router Age Seq# Checksum Link count 1.1.1.1 1.1.1.1 149 0x80000006 0x00B91F 2 2.2.2.2 2.2.2.2 607 0x80000010 0x00B3EA 2 11.11.11.11 11.11.11.11 150 0x8000000B 0x00581E 2 22.22.22.22 22.22.22.22 429 0x8000000A 0x0022FC 2 Net Link States (Area 100) Link ID ADV Router Age Seq# Checksum 10.0.0.1 1.1.1.1 150 0x80000001 0x00D225 10.0.0.5 1.1.1.1 430 0x80000001 0x00D2F4 20.0.0.1 2.2.2.2 1536 0x80000005 0x007441 20.0.0.5 2.2.2.2 1536 0x80000005 0x0024B9 Summary Net Link States (Area 100) Link ID ADV Router Age Seq# Checksum 0.0.0.0 1.1.1.1 471 0x80000001 0x001B17 0.0.0.0 2.2.2.2 608 0x80000001 0x00FC31 Type-7 AS External Link States (Area 100) Link ID ADV Router Age Seq# Checksum Tag 172.28.48.90 11.11.11.11 1741 0x80000002 0x0040F1 0 172.28.48.90 22.22.22.22 1513 0x80000003 0x002BD5 0 Type-5 AS External Link States Link ID ADV Router Age Seq# Checksum Tag 172.28.48.90 2.2.2.2 224 0x80000002 0x0058E5 0 ****************************************************************** R2#sh ip route 172.28.48.90 Routing entry for 172.28.48.90/32 Known via "ospf 100", distance 110, metric 10, type NSSA extern 2, forward metric 2 Last update from 20.0.0.6 on FastEthernet0/1, 00:04:15 ago Routing Descriptor Blocks: * 20.0.0.2, from 22.22.22.22, 00:04:15 ago, via FastEthernet0/0 Route metric is 10, traffic share count is 1 20.0.0.6, from 11.11.11.11, 00:04:15 ago, via FastEthernet0/1 Route metric is 10, traffic share count is 1 ****************************************************************** R2#sh ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 1.1.1.1 0 FULL/ - 00:00:30 12.0.0.1 Serial0/0.12 11.11.11.11 0 FULL/DROTHER 00:00:35 20.0.0.6 FastEthernet0/1 22.22.22.22 0 FULL/DROTHER 00:00:37 20.0.0.2 FastEthernet0/0 ****************************************************************** R2#sh ip route ospf 172.28.0.0/32 is subnetted, 1 subnets O N2 172.28.48.90 [110/10] via 20.0.0.2, 00:01:08, FastEthernet0/0 [110/10] via 20.0.0.6, 00:01:08, FastEthernet0/1 10.0.0.0/30 is subnetted, 2 subnets O 10.0.0.0 [110/2] via 20.0.0.6, 00:01:08, FastEthernet0/1 O 10.0.0.4 [110/2] via 20.0.0.2, 00:01:08, FastEthernet0/0