■GNS3でOSPF(ネットワークタイプ:ブロードキャスト)の検証環境を構築してみる。 非常にシンプルな構成。 $ echo "[R1] -- f0/0-f0/0(192.168.1.0/30)OSPFArea0 --> \ [R2] -- f1/0-f0/0(192.168.1.4/30)OSPFArea1 --> \ [R3]" | \ graph-easy --dot | dot -T png -o OSPF1.png
■GNS3の構成ファイルは以下 => show run autostart = False [127.0.0.1:7200] workingdir = /tmp udp = 10001 [[3620]] image = /Images/ios/c3620-is-mz.123-1.image ram = 128 idlepc = 0x603d5308 sparsemem = True ghostios = True [[ROUTER R1]] model = 3620 console = 2101 aux = 2501 slot0 = NM-1FE-TX f0/0 = R2 f0/0 [[ROUTER R2]] model = 3620 console = 2102 aux = 2502 slot0 = NM-1FE-TX f0/0 = R1 f0/0 slot1 = NM-1FE-TX f1/0 = R3 f0/0 [[ROUTER R3]] model = 3620 console = 2103 aux = 2503 slot0 = NM-1FE-TX f0/0 = R2 f1/0 => ■ルータの基本設定 $ for n in `seq 1 3`;do \ echo -e "enable\nconfigure terminal\nhostname R${n}\nend\nwrite memory"; \ done ■OSPF設定 ! R1 configure terminal interface f0/0 ip address 192.168.1.1 255.255.255.252 no shutdown exit router ospf 1 network 192.168.1.0 0.0.0.3 area 0 end write memory ! R2 configure terminal interface f0/0 ip address 192.168.1.2 255.255.255.252 no shutdown interface f1/0 ip address 192.168.1.5 255.255.255.252 no shutdown exit router ospf 1 network 192.168.1.0 0.0.0.3 area 0 network 192.168.1.4 0.0.0.3 area 1 end write memory ! R3 configure terminal interface f0/0 ip address 192.168.1.6 255.255.255.252 no shutdown exit router ospf 1 network 192.168.1.4 0.0.0.3 area 1 end write memory ■OSPF設定の確認 R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 192.168.1.5 1 FULL/BDR 00:00:34 192.168.1.2 FastEthernet0/0 R2#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 192.168.1.1 1 FULL/BDR 00:00:39 192.168.1.1 FastEthernet0/0 192.168.1.6 1 FULL/DR 00:00:39 192.168.1.6 FastEthernet1/0 R3#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 192.168.1.5 1 FULL/BDR 00:00:32 192.168.1.5 FastEthernet0/0 ■ルーティングテーブルの確認 R1#show ip route ospf 192.168.1.0/30 is subnetted, 2 subnets O IA 192.168.1.4 [110/2] via 192.168.1.2, 00:03:10, FastEthernet0/0 R2#show ip route ospf R3#show ip route ospf 192.168.1.0/30 is subnetted, 2 subnets O IA 192.168.1.0 [110/2] via 192.168.1.5, 00:03:10, FastEthernet0/0 ■デフォルトのタイマーの確認 R1#show ip ospf interface | include inter Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 R2#show ip ospf interface | include inter Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 R3#show ip ospf interface | include inter Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 ■R1からR3、R3からR1にpingが通るようになったので、R2について詳細を確認する。 R2#show ip ospf neighbor detail Neighbor 192.168.1.1, interface address 192.168.1.1 In the area 0 via interface FastEthernet0/0 Neighbor priority is 1, State is FULL, 12 state changes DR is 192.168.1.2 BDR is 192.168.1.1 Options is 0x52 LLS Options is 0x1 (LR) Dead timer due in 00:00:38 Neighbor is up for 00:05:24 Index 1/2, retransmission queue length 0, number of retransmission 0 First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0) Last retransmission scan length is 0, maximum is 0 Last retransmission scan time is 0 msec, maximum is 0 msec Neighbor 192.168.1.6, interface address 192.168.1.6 In the area 1 via interface FastEthernet1/0 Neighbor priority is 1, State is FULL, 12 state changes DR is 192.168.1.5 BDR is 192.168.1.6 Options is 0x52 LLS Options is 0x1 (LR) Dead timer due in 00:00:37 Neighbor is up for 00:05:24 Index 1/1, retransmission queue length 0, number of retransmission 1 First 0x0(0)/0x0(0) Next 0x0(0)/0x0(0) Last retransmission scan length is 1, maximum is 1 Last retransmission scan time is 0 msec, maximum is 0 msec R2#show ip protocols Routing Protocol is "ospf 1" Outgoing update filter list for all interfaces is not set Incoming update filter list for all interfaces is not set Router ID 192.168.1.5 It is an area border router Number of areas in this router is 2. 2 normal 0 stub 0 nssa Maximum path: 4 Routing for Networks: 192.168.1.0 0.0.0.3 area 0 192.168.1.4 0.0.0.3 area 1 Routing Information Sources: Gateway Distance Last Update 192.168.1.5 110 00:01:15 192.168.1.6 110 00:06:05 Distance: (default is 110) R2#show ip ospf Routing Process "ospf 1" with ID 192.168.1.5 Supports only single TOS(TOS0) routes Supports opaque LSA Supports Link-local Signaling (LLS) It is an area border router Initial SPF schedule delay 5000 msecs Minimum hold time between two consecutive SPFs 10000 msecs Maximum wait time between two consecutive SPFs 10000 msecs Minimum LSA interval 5 secs. Minimum LSA arrival 1 secs LSA group pacing timer 240 secs Interface flood pacing timer 33 msecs Retransmission pacing timer 66 msecs Number of external LSA 0. Checksum Sum 0x000000 Number of opaque AS LSA 0. Checksum Sum 0x000000 Number of DCbitless external and opaque AS LSA 0 Number of DoNotAge external and opaque AS LSA 0 Number of areas in this router is 2. 2 normal 0 stub 0 nssa External flood list length 0 Area BACKBONE(0) Number of interfaces in this area is 1 Area has no authentication SPF algorithm last executed 00:01:38.376 ago SPF algorithm executed 5 times Area ranges are Number of LSA 4. Checksum Sum 0x03BD9E Number of opaque link LSA 0. Checksum Sum 0x000000 Number of DCbitless LSA 0 Number of indication LSA 0 Number of DoNotAge LSA 0 Flood list length 0 Area 1 Number of interfaces in this area is 1 Area has no authentication SPF algorithm last executed 00:06:20.556 ago SPF algorithm executed 4 times Area ranges are Number of LSA 4. Checksum Sum 0x023871 Number of opaque link LSA 0. Checksum Sum 0x000000 Number of DCbitless LSA 0 Number of indication LSA 0 Number of DoNotAge LSA 0 Flood list length 0 R2#show ip ospf interface FastEthernet0/0 is up, line protocol is up Internet Address 192.168.1.2/30, Area 0 Process ID 1, Router ID 192.168.1.5, Network Type BROADCAST, Cost: 1 Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID) 192.168.1.5, Interface address 192.168.1.2 Backup Designated router (ID) 192.168.1.1, Interface address 192.168.1.1 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 oob-resync timeout 40 Hello due in 00:00:09 Index 1/1, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 2 Last flood scan time is 0 msec, maximum is 0 msec Neighbor Count is 1, Adjacent neighbor count is 1 Adjacent with neighbor 192.168.1.1 (Backup Designated Router) Suppress hello for 0 neighbor(s) FastEthernet1/0 is up, line protocol is up Internet Address 192.168.1.5/30, Area 1 Process ID 1, Router ID 192.168.1.5, Network Type BROADCAST, Cost: 1 Transmit Delay is 1 sec, State DR, Priority 1 Designated Router (ID) 192.168.1.5, Interface address 192.168.1.5 Backup Designated router (ID) 192.168.1.6, Interface address 192.168.1.6 Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5 oob-resync timeout 40 Hello due in 00:00:07 Index 1/2, flood queue length 0 Next 0x0(0)/0x0(0) Last flood scan length is 1, maximum is 1 Last flood scan time is 0 msec, maximum is 0 msec Neighbor Count is 1, Adjacent neighbor count is 1 Adjacent with neighbor 192.168.1.6 (Backup Designated Router) Suppress hello for 0 neighbor(s) R2#show ip ospf database OSPF Router with ID (192.168.1.5) (Process ID 1) Router Link States (Area 0) Link ID ADV Router Age Seq# Checksum Link count 192.168.1.1 192.168.1.1 439 0x80000002 0x00FC86 1 192.168.1.5 192.168.1.5 439 0x80000005 0x00C7AE 1 Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 192.168.1.2 192.168.1.5 439 0x80000001 0x009CE9 Summary Net Link States (Area 0) Link ID ADV Router Age Seq# Checksum 192.168.1.4 192.168.1.5 429 0x80000006 0x0061FA Router Link States (Area 1) Link ID ADV Router Age Seq# Checksum Link count 192.168.1.5 192.168.1.5 429 0x80000005 0x001060 1 192.168.1.6 192.168.1.6 436 0x80000005 0x000B63 1 Net Link States (Area 1) Link ID ADV Router Age Seq# Checksum 192.168.1.5 192.168.1.5 439 0x80000001 0x00C4B9 Summary Net Link States (Area 1) Link ID ADV Router Age Seq# Checksum 192.168.1.0 192.168.1.5 441 0x80000004 0x008DD4 R2#show ip ospf database router OSPF Router with ID (192.168.1.5) (Process ID 1) Router Link States (Area 0) LS age: 358 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: 192.168.1.1 Advertising Router: 192.168.1.1 LS Seq Number: 80000004 Checksum: 0xEE93 Length: 36 Number of Links: 1 Link connected to: a Transit Network (Link ID) Designated Router address: 192.168.1.1 (Link Data) Router Interface address: 192.168.1.1 Number of TOS metrics: 0 TOS 0 Metrics: 1 LS age: 353 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: 192.168.1.5 Advertising Router: 192.168.1.5 LS Seq Number: 80000006 Checksum: 0xBBBA Length: 36 Area Border Router Number of Links: 1 Link connected to: a Transit Network (Link ID) Designated Router address: 192.168.1.1 (Link Data) Router Interface address: 192.168.1.2 Number of TOS metrics: 0 TOS 0 Metrics: 1 Router Link States (Area 1) LS age: 349 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: 192.168.1.5 Advertising Router: 192.168.1.5 LS Seq Number: 80000006 Checksum: 0x1856 Length: 36 Area Border Router Number of Links: 1 Link connected to: a Transit Network (Link ID) Designated Router address: 192.168.1.6 (Link Data) Router Interface address: 192.168.1.5 Number of TOS metrics: 0 TOS 0 Metrics: 1 LS age: 360 Options: (No TOS-capability, DC) LS Type: Router Links Link State ID: 192.168.1.6 Advertising Router: 192.168.1.6 LS Seq Number: 80000007 Checksum: 0x115A Length: 36 Number of Links: 1 Link connected to: a Transit Network (Link ID) Designated Router address: 192.168.1.6 (Link Data) Router Interface address: 192.168.1.6 Number of TOS metrics: 0 TOS 0 Metrics: 1 R2#show ip ospf database network OSPF Router with ID (192.168.1.5) (Process ID 1) Net Link States (Area 0) Routing Bit Set on this LSA LS age: 450 Options: (No TOS-capability, DC) LS Type: Network Links Link State ID: 192.168.1.1 (address of Designated Router) Advertising Router: 192.168.1.1 LS Seq Number: 80000001 Checksum: 0xCEBC Length: 32 Network Mask: /30 Attached Router: 192.168.1.1 Attached Router: 192.168.1.5 Net Link States (Area 1) Routing Bit Set on this LSA LS age: 447 Options: (No TOS-capability, DC) LS Type: Network Links Link State ID: 192.168.1.6 (address of Designated Router) Advertising Router: 192.168.1.6 LS Seq Number: 80000001 Checksum: 0xB0CB Length: 32 Network Mask: /30 Attached Router: 192.168.1.6 Attached Router: 192.168.1.5 R2#show ip ospf database summary OSPF Router with ID (192.168.1.5) (Process ID 1) Summary Net Link States (Area 0) LS age: 462 Options: (No TOS-capability, DC, Upward) LS Type: Summary Links(Network) Link State ID: 192.168.1.4 (summary Network Number) Advertising Router: 192.168.1.5 LS Seq Number: 80000007 Checksum: 0x5FFB Length: 28 Network Mask: /30 TOS: 0 Metric: 1 Summary Net Link States (Area 1) LS age: 462 Options: (No TOS-capability, DC, Upward) LS Type: Summary Links(Network) Link State ID: 192.168.1.0 (summary Network Number) Advertising Router: 192.168.1.5 LS Seq Number: 80000005 Checksum: 0x8BD5 Length: 28 Network Mask: /30 TOS: 0 Metric: 1 R2#debug ip ospf hello OSPF hello events debugging is on *Mar 1 00:39:32.427: OSPF: Rcv hello from 192.168.1.1 area 0 from FastEthernet0/0 192.168.1.1 *Mar 1 00:39:32.427: OSPF: End of hello processing *Mar 1 00:39:33.411: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0 from 192.168.1.2 *Mar 1 00:39:33.411: OSPF: Send hello to 224.0.0.5 area 1 on FastEthernet1/0 from 192.168.1.5 *Mar 1 00:39:33.539: OSPF: Rcv hello from 192.168.1.6 area 1 from FastEthernet1/0 192.168.1.6 *Mar 1 00:39:33.539: OSPF: End of hello processing *Mar 1 00:39:42.603: OSPF: Rcv hello from 192.168.1.1 area 0 from FastEthernet0/0 192.168.1.1 *Mar 1 00:39:42.603: OSPF: End of hello processing *Mar 1 00:39:43.411: OSPF: Send hello to 224.0.0.5 area 0 on FastEthernet0/0 from 192.168.1.2 *Mar 1 00:39:43.411: OSPF: Send hello to 224.0.0.5 area 1 on FastEthernet1/0 from 192.168.1.5 *Mar 1 00:39:43.979: OSPF: Rcv hello from 192.168.1.6 area 1 from FastEthernet1/0 192.168.1.6 *Mar 1 00:39:43.979: OSPF: End of hello processing R2#no debug ip ospf hello OSPF hello events debugging is off R2#debug ip ospf adj OSPF adjacency events debugging is on R2#clear ip ospf process Reset ALL OSPF processes? [no]: yes R2# *Mar 1 00:41:21.659: OSPF: Interface FastEthernet0/0 going Down *Mar 1 00:41:21.659: OSPF: 192.168.1.5 address 192.168.1.2 on FastEthernet0/0 is dead, state DOWN *Mar 1 00:41:21.659: OSPF: Neighbor change Event on interface FastEthernet0/0 *Mar 1 00:41:21.659: OSPF: DR/BDR election on FastEthernet0/0 *Mar 1 00:41:21.659: OSPF: Elect BDR 192.168.1.1 *Mar 1 00:41:21.659: OSPF: Elect DR 192.168.1.1 *Mar 1 00:41:21.663: OSPF: Elect BDR 192.168.1.1 *Mar 1 00:41:21.663: OSPF: Elect DR 192.168.1.1 *Mar 1 00:41:21.663: DR: 192.168.1.1 (Id) BDR: 192.168.1.1 (Id) *Mar 1 00:41:21.663: OSPF: Flush network LSA immediately *Mar 1 00:41:21.663: OSPF: Remember old DR 192.168.1.5 (id) *Mar 1 00:41:21.663: OSPF: 192.168.1.1 address 192.168.1.1 on FastEthernet0/0 is dead, state DOWN *Mar 1 00:41:21.667: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.1.1 on FastEthernet0/0 from FULL to DOWN, Neighbor Down: Interface down or detached *Mar 1 00:41:21.667: OSPF: Neighbor change Event on interface FastEthernet0/0 *Mar 1 00:41:21.667: OSPF: DR/BDR election on FastEthernet0/0 *Mar 1 00:41:21.667: OSPF: Elect BDR 0.0.0.0 *Mar 1 00:41:21.671: OSPF: Elect DR 0.0.0.0 *Mar 1 00:41:21.671: DR: none BDR: none *Mar 1 00:41:21.671: OSPF: Remember old DR 192.168.1.1 (id) *Mar 1 00:41:21.711: OSPF: Interface FastEthernet1/0 going Down *Mar 1 00:41:21.711: OSPF: 192.168.1.5 address 192.168.1.5 on FastEthernet1/0 is dead, state DOWN *Mar 1 00:41:21.711: OSPF: Neighbor change Event on interface FastEthernet1/0 *Mar 1 00:41:21.711: OSPF: DR/BDR election on FastEthernet1/0 *Mar 1 00:41:21.711: OSPF: Elect BDR 192.168.1.6 *Mar 1 00:41:21.711: OSPF: Elect DR 192.168.1.6 *Mar 1 00:41:21.715: OSPF: Elect BDR 192.168.1.6 *Mar 1 00:41:21.715: OSPF: Elect DR 192.168.1.6 *Mar 1 00:41:21.715: DR: 192.168.1.6 (Id) BDR: 192.168.1.6 (Id) *Mar 1 00:41:21.715: OSPF: Flush network LSA immediately *Mar 1 00:41:21.715: OSPF: Remember old DR 192.168.1.5 (id) *Mar 1 00:41:21.715: OSPF: 192.168.1.6 address 192.168.1.6 on FastEthernet1/0 is dead, state DOWN *Mar 1 00:41:21.719: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.1.6 on FastEthernet1/0 from FULL to DOWN, Neighbor Down: Interface down or detached *Mar 1 00:41:21.719: OSPF: Neighbor change Event on interface FastEthernet1/0 *Mar 1 00:41:21.719: OSPF: DR/BDR election on FastEthernet1/0 *Mar 1 00:41:21.719: OSPF: Elect BDR 0.0.0.0 *Mar 1 00:41:21.723: OSPF: Elect DR 0.0.0.0 *Mar 1 00:41:21.723: DR: none BDR: none *Mar 1 00:41:21.723: OSPF: Remember old DR 192.168.1.6 (id) *Mar 1 00:41:21.791: OSPF: Interface FastEthernet0/0 going Up *Mar 1 00:41:21.791: OSPF: Interface FastEthernet1/0 going Up *Mar 1 00:41:22.163: OSPF: We are not DR to build Net Lsa for interface FastEthernet0/0 *Mar 1 00:41:22.163: OSPF: Build router LSA for area 0, router ID 192.168.1.5, seq 0x80000001 *Mar 1 00:41:22.215: OSPF: We are not DR to build Net Lsa for interface FastEthernet1/0 *Mar 1 00:41:22.215: OSPF: Build router LSA for area 1, router ID 192.168.1.5, seq 0x80000001 *Mar 1 00:41:27.319: OSPF: 2 Way Communication to 192.168.1.1 on FastEthernet0/0, state 2WAY *Mar 1 00:41:27.319: OSPF: Backup seen Event before WAIT timer on FastEthernet0/0 *Mar 1 00:41:27.319: OSPF: DR/BDR election on FastEthernet0/0 *Mar 1 00:41:27.319: OSPF: Elect BDR 192.168.1.5 *Mar 1 00:41:27.319: OSPF: Elect DR 192.168.1.1 *Mar 1 00:41:27.323: OSPF: Elect BDR 192.168.1.5 *Mar 1 00:41:27.323: OSPF: Elect DR 192.168.1.1 *Mar 1 00:41:27.323: DR: 192.168.1.1 (Id) BDR: 192.168.1.5 (Id) *Mar 1 00:41:27.323: OSPF: Send DBD to 192.168.1.1 on FastEthernet0/0 seq 0x18B0 opt 0x52 flag 0x7 len 32 *Mar 1 00:41:27.339: OSPF: Rcv DBD from 192.168.1.1 on FastEthernet0/0 seq 0x1AA1 opt 0x52 flag 0x7 len 32 mtu 1500 state EXSTART *Mar 1 00:41:27.339: OSPF: First DBD and we are not SLAVE *Mar 1 00:41:27.339: OSPF: Rcv DBD from 192.168.1.1 on FastEthernet0/0 seq 0x18B0 opt 0x52 flag 0x2 len 72 mtu 1500 state EXSTART *Mar 1 00:41:27.343: OSPF: NBR Negotiation Done. We are the MASTER *Mar 1 00:41:27.343: OSPF: Send DBD to 192.168.1.1 on FastEthernet0/0 seq 0x18B1 opt 0x52 flag 0x3 len 72 *Mar 1 00:41:27.343: OSPF: Database request to 192.168.1.1 *Mar 1 00:41:27.343: OSPF: sent LS REQ packet to 192.168.1.1, length 24 *Mar 1 00:41:27.359: OSPF: Rcv DBD from 192.168.1.1 on FastEthernet0/0 seq 0x18B1 opt 0x52 flag 0x0 len 32 mtu 1500 state EXCHANGE *Mar 1 00:41:27.359: OSPF: Send DBD to 192.168.1.1 on FastEthernet0/0 seq 0x18B2 opt 0x52 flag 0x1 len 32 *Mar 1 00:41:27.383: OSPF: Rcv DBD from 192.168.1.1 on FastEthernet0/0 seq 0x18B2 opt 0x52 flag 0x0 len 32 mtu 1500 state EXCHANGE *Mar 1 00:41:27.383: OSPF: Exchange Done with 192.168.1.1 on FastEthernet0/0 *Mar 1 00:41:27.383: OSPF: Synchronized with 192.168.1.1 on FastEthernet0/0, state FULL *Mar 1 00:41:27.383: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.1.1 on FastEthernet0/0 from LOADING to FULL, Loading Done *Mar 1 00:41:27.827: OSPF: Build router LSA for area 0, router ID 192.168.1.5, seq 0x80000002 *Mar 1 00:41:30.415: OSPF: 2 Way Communication to 192.168.1.6 on FastEthernet1/0, state 2WAY *Mar 1 00:41:30.415: OSPF: Backup seen Event before WAIT timer on FastEthernet1/0 *Mar 1 00:41:30.415: OSPF: DR/BDR election on FastEthernet1/0 *Mar 1 00:41:30.419: OSPF: Elect BDR 192.168.1.5 *Mar 1 00:41:30.419: OSPF: Elect DR 192.168.1.6 *Mar 1 00:41:30.419: OSPF: Elect BDR 192.168.1.5 *Mar 1 00:41:30.419: OSPF: Elect DR 192.168.1.6 *Mar 1 00:41:30.419: DR: 192.168.1.6 (Id) BDR: 192.168.1.5 (Id) *Mar 1 00:41:30.419: OSPF: Send DBD to 192.168.1.6 on FastEthernet1/0 seq 0x1C27 opt 0x52 flag 0x7 len 32 *Mar 1 00:41:30.435: OSPF: Rcv DBD from 192.168.1.6 on FastEthernet1/0 seq 0x258C opt 0x52 flag 0x7 len 32 mtu 1500 state EXSTART *Mar 1 00:41:30.435: OSPF: NBR Negotiation Done. We are the SLAVE *Mar 1 00:41:30.435: OSPF: Send DBD to 192.168.1.6 on FastEthernet1/0 seq 0x258C opt 0x52 flag 0x2 len 72 *Mar 1 00:41:30.455: OSPF: Rcv DBD from 192.168.1.6 on FastEthernet1/0 seq 0x258D opt 0x52 flag 0x3 len 72 mtu 1500 state EXCHANGE *Mar 1 00:41:30.455: OSPF: Send DBD to 192.168.1.6 on FastEthernet1/0 seq 0x258D opt 0x52 flag 0x0 len 32 *Mar 1 00:41:30.459: OSPF: Database request to 192.168.1.6 *Mar 1 00:41:30.459: OSPF: sent LS REQ packet to 192.168.1.6, length 24 *Mar 1 00:41:30.475: OSPF: Rcv DBD from 192.168.1.6 on FastEthernet1/0 seq 0x258E opt 0x52 flag 0x1 len 32 mtu 1500 state EXCHANGE *Mar 1 00:41:30.475: OSPF: Exchange Done with 192.168.1.6 on FastEthernet1/0 *Mar 1 00:41:30.475: OSPF: Send DBD to 192.168.1.6 on FastEthernet1/0 seq 0x258E opt 0x52 flag 0x0 len 32 *Mar 1 00:41:30.479: OSPF: Synchronized with 192.168.1.6 on FastEthernet1/0, state FULL *Mar 1 00:41:30.479: %OSPF-5-ADJCHG: Process 1, Nbr 192.168.1.6 on FastEthernet1/0 from LOADING to FULL, Loading Done *Mar 1 00:41:30.923: OSPF: Build router LSA for area 1, router ID 192.168.1.5, seq 0x80000002 *Mar 1 00:41:32.839: OSPF: Build router LSA for area 0, router ID 192.168.1.5, seq 0x80000006 *Mar 1 00:41:36.127: OSPF: Neighbor change Event on interface FastEthernet0/0 *Mar 1 00:41:36.127: OSPF: DR/BDR election on FastEthernet0/0 *Mar 1 00:41:36.127: OSPF: Elect BDR 192.168.1.5 *Mar 1 00:41:36.127: OSPF: Elect DR 192.168.1.1 *Mar 1 00:41:36.127: DR: 192.168.1.1 (Id) BDR: 192.168.1.5 (Id) *Mar 1 00:41:36.935: OSPF: Build router LSA for area 1, router ID 192.168.1.5, seq 0x80000006 *Mar 1 00:41:39.291: OSPF: Neighbor change Event on interface FastEthernet1/0 *Mar 1 00:41:39.291: OSPF: DR/BDR election on FastEthernet1/0 *Mar 1 00:41:39.291: OSPF: Elect BDR 192.168.1.5 *Mar 1 00:41:39.291: OSPF: Elect DR 192.168.1.6 *Mar 1 00:41:39.291: DR: 192.168.1.6 (Id) BDR: 192.168.1.5 (Id) R2# R2#no debug ip ospf adj OSPF adjacency events debugging is off