目次
概要
広域イーサネットで相互接続している4拠点の社内ネットワークにおいて、OSPFによるルーティングを行う演習です。Part1では、OSPFの基本設定を行います。
Part1:OSPFの基本設定
Part2:デフォルトルートの生成
Part3:スタブエリア
Part4:ルート集約
Part5:トラブルシューティング
ネットワーク構成
設定条件
Part1:OSPFの基本設定 -> このページで設定
- 図 ルーティングプロトコルの構成のように、OSPFおよびRIPv2の設定を行います。OSPFルータのルータIDは、YY.YY.YY.YY(YY:ルータ番号)とします。また、将来的なギガビットイーサネット導入に対応できるように設定します。
- 不要なインタフェースにはルーティングプロトコルのパケットを送信しないようにします。
- R42では、RIPv2のルートをOSPFへ再配送します。また、R42はR43へRIPv2でデフォルトルートをアドバタイズします。
- 10.0.0.0/24上では、R11がDR、R12がBDRとなるようにします。また、MD5によるネイバー認証を行い、ネイバーの障害検出を4秒以内にできるようにします。
Part2デフォルトルートの生成
- R13、R14でインターネットへルーティングするためのデフォルトルートをスタティックで設定します。
- R13、R14でOSPFドメインにデフォルトルートを生成します。インターネットへのルーティングはR13を優先します。
Part3:スタブエリアの設定
- エリア2、エリア4にはLSAタイプ5をアドバタイズしないように設定します。エリア4にはインターネットへの接続性を確保するために、デフォルトルートをアドバタイズできるようにします。
- エリア3のLSDBのサイズが最も小さくなるように設定します。
Part4:ルート集約
- エリア1、エリア2、エリア3、エリア4のネットワークアドレスを集約してバックボーンエリアにアドバタイズします。
- RIPv2ドメインのルートを集約してOSPFドメインへアドバタイズします。
初期設定
各ルータの以下の項目について初期設定を行なっています。
- ホスト名
- IPアドレス
R11 Initial Configuration (Click)
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R11 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.1.11.11 255.255.255.255 ! interface FastEthernet0/0 ip address 10.0.0.11 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.1.1.11 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R12 Initial Configuration (Click)
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R12 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.1.12.12 255.255.255.255 ! interface FastEthernet0/0 ip address 10.0.0.12 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.1.1.12 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R13 Initial Configuration (Click)
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R13 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.1.13.13 255.255.255.255 ! interface FastEthernet0/0 ip address 10.1.2.13 255.255.255.0 ip nat inside ip virtual-reassembly duplex auto speed auto ! interface FastEthernet1/0 ip address 10.1.1.13 255.255.255.0 ip nat inside ip virtual-reassembly duplex auto speed auto ! interface Serial2/0 ip address 100.1.0.1 255.255.255.252 ip nat outside ip virtual-reassembly serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ip nat inside source list 1 interface Serial2/0 overload ! access-list 1 permit 10.0.0.0 0.255.255.255 ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R14 Initial Configuration (Click)
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R14 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.1.14.14 255.255.255.255 ! interface FastEthernet0/0 ip address 10.1.3.14 255.255.255.0 ip nat inside ip virtual-reassembly duplex auto speed auto ! interface FastEthernet1/0 ip address 10.1.1.14 255.255.255.0 ip nat inside ip virtual-reassembly duplex auto speed auto ! interface Serial2/0 ip address 100.1.0.5 255.255.255.252 ip nat outside ip virtual-reassembly serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ip nat inside source list 1 interface Serial2/0 overload ! access-list 1 permit 10.0.0.0 0.255.255.255 ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R21 Initial Configuration (Click)
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R21 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.2.21.21 255.255.255.255 ! interface FastEthernet0/0 ip address 10.0.0.21 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.2.1.21 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R22 Initial Configuration (Click)
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R22 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.2.22.22 255.255.255.255 ! interface FastEthernet0/0 ip address 10.2.2.22 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.2.1.22 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R23 Initial Configuration (Click)
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R23 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.2.23.23 255.255.255.255 ! interface FastEthernet0/0 ip address 10.2.3.23 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.2.1.23 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R31 Initial Configuration (Click)
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R31 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.3.31.31 255.255.255.255 ! interface FastEthernet0/0 ip address 10.0.0.31 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.3.1.31 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R41 Initial Configuration (Click)
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R41 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.4.41.41 255.255.255.255 ! interface FastEthernet0/0 ip address 10.0.0.41 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.4.1.41 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R42 Initial Configuration (Click)
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R42 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.4.42.42 255.255.255.0 ! interface FastEthernet0/0 no ip address shutdown duplex auto speed auto ! interface FastEthernet1/0 ip address 10.4.1.42 255.255.255.0 duplex auto speed auto ! interface Serial2/0 ip address 172.16.0.42 255.255.255.0 serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R43 Initial Configuration (Click)
! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R43 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.4.43.43 255.255.255.255 ! interface Loopback1 ip address 172.16.2.43 255.255.255.0 secondary ip address 172.16.1.43 255.255.255.0 ! interface FastEthernet0/0 no ip address shutdown duplex auto speed auto ! interface FastEthernet1/0 no ip address shutdown duplex auto speed auto ! interface Serial2/0 ip address 172.16.0.43 255.255.255.0 serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
ISP Initical Configuration (Click)
! ! ! ! ! ! ! ! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname ISP ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 100.1.1.1 255.255.255.0 ! interface FastEthernet0/0 no ip address shutdown duplex auto speed auto ! interface FastEthernet1/0 no ip address shutdown duplex auto speed auto ! interface Serial2/0 ip address 100.1.0.2 255.255.255.252 serial restart-delay 0 ! interface Serial2/1 ip address 100.1.0.6 255.255.255.252 serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
設定と確認 Part1:OSPFの基本設定
Step1:エリア1(拠点1)のOSPFの設定
拠点1のR11～R14でOSPFの設定を行います。OSPFルーティングプロセスを有効にします。そして、エリア構成に従ってインタフェースでOSPFを有効にします。また、Loopback0はパッシブインタフェースとして設定します。
R11 エリア1 OSPF
router ospf 1 router-id 11.11.11.11 auto-cost reference-bandwidth 3000 network 10.1.0.0 0.0.255.255 area 1 passive-interface loopback 0
R12 エリア1 OSPF
router ospf 1 router-id 12.12.12.12 auto-cost reference-bandwidth 3000 network 10.1.0.0 0.0.255.255 area 1 passive-interface loopback 0
R13 エリア1 OSPF
router ospf 1 router-id 13.13.13.13 auto-cost reference-bandwidth 3000 network 10.1.0.0 0.0.255.255 area 1 passive-interface loopback 0 passive-interface F0/0
R14 エリア1 OSPF
router ospf 1 router-id 14.14.14.14 auto-cost reference-bandwidth 3000 network 10.1.0.0 0.0.255.255 area 1 passive-interface loopback 0 passive-interface F0/0
Step2:エリア1(拠点1)のOSPFの確認
R11～R14でOSPFの設定を確認するために、以下のshowコマンドを実行します。
- show ip protocols
- show ip ospf
- show ip ospf interface
- show ip ospf neighbor
- show ip route ospf
R11の出力は次のようになります。
R11 エリア1 OSPFの確認
R11#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 11.11.11.11
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
10.1.0.0 0.0.255.255 area 1
Reference bandwidth unit is 3000 mbps
Passive Interface(s):
Loopback0
Routing Information Sources:
Gateway Distance Last Update
12.12.12.12 110 00:00:28
14.14.14.14 110 00:00:28
13.13.13.13 110 00:00:28
Distance: (default is 110)
R11#show ip ospf
Routing Process "ospf 1" with ID 11.11.11.11
Start time: 01:15:31.480, Time elapsed: 00:09:18.808
-- omitted --
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Number of areas transit capable is 0
External flood list length 0
Area 1
Number of interfaces in this area is 2 (1 loopback)
Area has no authentication
SPF algorithm last executed 00:07:48.884 ago
SPF algorithm executed 3 times
Area ranges are
Number of LSA 5. Checksum Sum 0x022847
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
R11#show ip ospf interface
Loopback0 is up, line protocol is up
Internet Address 10.1.11.11/32, Area 1
Process ID 1, Router ID 11.11.11.11, Network Type LOOPBACK, Cost: 1
Loopback interface is treated as a stub Host
FastEthernet1/0 is up, line protocol is up
Internet Address 10.1.1.11/24, Area 1
Process ID 1, Router ID 11.11.11.11, Network Type BROADCAST, Cost: 1
Transmit Delay is 1 sec, State DROTHER, Priority 1
Designated Router (ID) 14.14.14.14, Interface address 10.1.1.14
Backup Designated router (ID) 13.13.13.13, Interface address 10.1.1.13
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:07
Supports Link-local Signaling (LLS)
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 3, Adjacent neighbor count is 2
Adjacent with neighbor 13.13.13.13 (Backup Designated Router)
Adjacent with neighbor 14.14.14.14 (Designated Router)
Suppress hello for 0 neighbor(s)
R11#show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
12.12.12.12 1 2WAY/DROTHER 00:00:34 10.1.1.12 FastEthernet1/0
13.13.13.13 1 FULL/BDR 00:00:34 10.1.1.13 FastEthernet1/0
14.14.14.14 1 FULL/DR 00:00:38 10.1.1.14 FastEthernet1/0
R11#show ip route ospf
10.0.0.0/8 is variably subnetted, 8 subnets, 2 masks
O 10.1.3.0/24 [110/60] via 10.1.1.14, 00:38:55, FastEthernet1/0
O 10.1.2.0/24 [110/60] via 10.1.1.13, 00:38:55, FastEthernet1/0
O 10.1.14.14/32 [110/31] via 10.1.1.14, 00:38:55, FastEthernet1/0
O 10.1.13.13/32 [110/31] via 10.1.1.13, 00:38:55, FastEthernet1/0
O 10.1.12.12/32 [110/31] via 10.1.1.12, 00:38:55, FastEthernet1/0
Step3:エリア2(拠点2)のOSPFの設定
拠点2のR21～R23でOSPFの設定を行います。
R21 エリア2 OSPF
router ospf 1 router-id 21.21.21.21 auto-cost reference-bandwidth 3000 network 10.2.0.0 0.0.255.255 area 2 passive-interface loopback 0
R22 エリア2 OSPF
router ospf 1 router-id 22.22.22.22 auto-cost reference-bandwidth 3000 network 10.2.0.0 0.0.255.255 area 2 passive-interface loopback 0 passive-interface F0/0
R23 エリア2 OSPF
router ospf 1 router-id 23.23.23.23 auto-cost reference-bandwidth 3000 network 10.2.0.0 0.0.255.255 area 2 passive-interface loopback 0 passive-interface F0/0
Step4:エリア2(拠点2)のOSPFの確認
R21～R23でOSPFの設定を確認するために、以下のshowコマンドを実行します。
- show ip protocols
- show ip ospf
- show ip ospf interface
- show ip ospf neighbor
- show ip route ospf
R21の出力は次のようになります。
R21 エリア2 OSPFの確認
R21#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 21.21.21.21
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
10.2.0.0 0.0.255.255 area 1
Reference bandwidth unit is 3000 mbps
Passive Interface(s):
Loopback0
Routing Information Sources:
Gateway Distance Last Update
23.23.23.23 110 00:02:31
22.22.22.22 110 00:02:31
Distance: (default is 110)
R21#show ip ospf
Routing Process "ospf 1" with ID 21.21.21.21
Start time: 02:00:31.004, Time elapsed: 00:04:06.244
-- omitted --
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Number of areas transit capable is 0
External flood list length 0
Area 2
Number of interfaces in this area is 2 (1 loopback)
Area has no authentication
SPF algorithm last executed 00:02:34.036 ago
SPF algorithm executed 3 times
Area ranges are
Number of LSA 4. Checksum Sum 0x0206AC
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
R21#show ip ospf interface
Loopback0 is up, line protocol is up
Internet Address 10.2.21.21/32, Area 1
Process ID 1, Router ID 21.21.21.21, Network Type LOOPBACK, Cost: 1
Loopback interface is treated as a stub Host
FastEthernet1/0 is up, line protocol is up
Internet Address 10.2.1.21/24, Area 1
Process ID 1, Router ID 21.21.21.21, Network Type BROADCAST, Cost: 30
Transmit Delay is 1 sec, State DROTHER, Priority 1
Designated Router (ID) 22.22.22.22, Interface address 10.2.1.22
Backup Designated router (ID) 23.23.23.23, Interface address 10.2.1.23
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:00
Supports Link-local Signaling (LLS)
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 1
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 2, Adjacent neighbor count is 2
Adjacent with neighbor 22.22.22.22 (Designated Router)
Adjacent with neighbor 23.23.23.23 (Backup Designated Router)
Suppress hello for 0 neighbor(s)
R21#show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
22.22.22.22 1 FULL/DR 00:00:39 10.2.1.22 FastEthernet1/0
23.23.23.23 1 FULL/BDR 00:00:36 10.2.1.23 FastEthernet1/0
R21#show ip route ospf
10.0.0.0/8 is variably subnetted, 7 subnets, 2 masks
O 10.2.23.23/32 [110/31] via 10.2.1.23, 00:02:41, FastEthernet1/0
O 10.2.22.22/32 [110/31] via 10.2.1.22, 00:02:41, FastEthernet1/0
O 10.2.2.0/24 [110/60] via 10.2.1.22, 00:02:41, FastEthernet1/0
O 10.2.3.0/24 [110/60] via 10.2.1.23, 00:02:41, FastEthernet1/0
Step5:エリア3(拠点3)のOSPFの設定
拠点3のR31でOSPFの設定を行います。
R31 エリア3 OSPF
router ospf 1 router-id 31.31.31.31 auto-cost reference-bandwidth 3000 network 10.3.0.0 0.0.255.255 area 3 passive-interface loopback 0 passive-interface F01/0
Step6:エリア3(拠点3)のOSPFの確認
R31でOSPFの設定を確認するために、以下のshowコマンドを実行します。
- show ip protocols
- show ip ospf
- show ip ospf interface
R31の出力は次のようになります。
R31 エリア3 OSPFの確認
R31#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 31.31.31.31
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
10.3.0.0 0.0.255.255 area 3
Reference bandwidth unit is 3000 mbps
Passive Interface(s):
FastEthernet1/0
Loopback0
Routing Information Sources:
Gateway Distance Last Update
Distance: (default is 110)
R31#show ip ospf
Routing Process "ospf 1" with ID 31.31.31.31
Start time: 02:21:55.064, Time elapsed: 00:01:22.328
-- omitted --
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Number of areas transit capable is 0
External flood list length 0
Area 3
Number of interfaces in this area is 2 (1 loopback)
Area has no authentication
SPF algorithm last executed 00:01:17.404 ago
SPF algorithm executed 1 times
Area ranges are
Number of LSA 1. Checksum Sum 0x00723F
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
R31#show ip ospf interface
Loopback0 is up, line protocol is up
Internet Address 10.3.31.31/32, Area 3
Process ID 1, Router ID 31.31.31.31, Network Type LOOPBACK, Cost: 1
Loopback interface is treated as a stub Host
FastEthernet1/0 is up, line protocol is up
Internet Address 10.3.1.31/24, Area 3
Process ID 1, Router ID 31.31.31.31, Network Type BROADCAST, Cost: 30
Transmit Delay is 1 sec, State DR, Priority 1
Designated Router (ID) 31.31.31.31, Interface address 10.3.1.31
No backup designated router on this network
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
No Hellos (Passive interface)
Supports Link-local Signaling (LLS)
Index 1/1, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 0, maximum is 0
Last flood scan time is 0 msec, maximum is 0 msec
Neighbor Count is 0, Adjacent neighbor count is 0
Suppress hello for 0 neighbor(s)
Step7:エリア4(拠点4)のOSPFの設定
拠点4のR41～R42でOSPFの設定を行います。
R41 エリア4 OSPF
router ospf 1 router-id 41.41.41.41 auto-cost reference-bandwidth 3000 network 10.4.0.0 0.0.255.255 area 4 passive-interface loopback 0
R42 エリア4 OSPF
router ospf 1 router-id 42.42.42.42 auto-cost reference-bandwidth 3000 network 10.4.0.0 0.0.255.255 area 4 passive-interface loopback 0
Step8:エリア4(拠点4)のOSPFの確認
R41～R42でOSPFの設定を確認するために、以下のshowコマンドを実行します。
- show ip protocols
- show ip ospf
- show ip ospf interface
- show ip ospf neighbor
- show ip route ospf
R41の出力は次のようになります。
R41 エリア4 OSPFの確認
R41#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 41.41.41.41
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
10.4.0.0 0.0.255.255 area 4
Reference bandwidth unit is 3000 mbps
Passive Interface(s):
Loopback0
Routing Information Sources:
Gateway Distance Last Update
42.42.42.42 110 00:00:26
Distance: (default is 110)
R41#show ip ospf
Routing Process "ospf 1" with ID 41.41.41.41
Start time: 02:30:02.916, Time elapsed: 00:01:25.192
-- omitted --
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Number of areas transit capable is 0
External flood list length 0
Area 4
Number of interfaces in this area is 2 (1 loopback)
Area has no authentication
SPF algorithm last executed 00:00:28.744 ago
SPF algorithm executed 2 times
Area ranges are
Number of LSA 3. Checksum Sum 0x01963A
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
R41#show ip ospf interface
Loopback0 is up, line protocol is up
Internet Address 10.4.41.41/32, Area 4
Process ID 1, Router ID 41.41.41.41, Network Type LOOPBACK, Cost: 1
Loopback interface is treated as a stub Host
FastEthernet1/0 is up, line protocol is up
Internet Address 10.4.1.41/24, Area 4
Process ID 1, Router ID 41.41.41.41, Network Type BROADCAST, Cost: 30
Transmit Delay is 1 sec, State BDR, Priority 1
Designated Router (ID) 42.42.42.42, Interface address 10.4.1.42
Backup Designated router (ID) 41.41.41.41, Interface address 10.4.1.41
Timer intervals configured, Hello 10, Dead 40, Wait 40, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:01
Supports Link-local Signaling (LLS)
Index 1/1, 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 42.42.42.42 (Designated Router)
Suppress hello for 0 neighbor(s)
R41#show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
42.42.42.42 1 FULL/DR 00:00:31 10.4.1.42 FastEthernet1/0
R41#show ip route ospf
10.0.0.0/8 is variably subnetted, 4 subnets, 2 masks
O 10.4.42.42/32 [110/31] via 10.4.1.42, 00:00:56, FastEthernet1/0
Step9:RIPv2の設定
R42とR43でRIPv2の設定を行います。R42はR43へデフォルトルートをアドバタイズします。
R42 RIPv2
router rip version 2 network 172.16.0.0 default-information originate
R43 RIPv2
router rip version 2 network 172.16.0.0 passive-interface default no passive-interface serial2/0
Step10:RIPv2の確認
R42/R43でRIPv2の設定を確認するために、以下のshowコマンドを実行します。
- show ip protocols
- show ip route rip
R42の出力は次のようになります。
R42 RIPv2の確認
R42#show ip protocols
Routing Protocol is "ospf 1"
-- omitted --
Routing Protocol is "rip"
Outgoing update filter list for all interfaces is not set
Incoming update filter list for all interfaces is not set
Sending updates every 30 seconds, next due in 1 seconds
Invalid after 180 seconds, hold down 180, flushed after 240
Redistributing: rip
Default version control: send version 2, receive version 2
Interface Send Recv Triggered RIP Key-chain
Serial2/0 2 2
Automatic network summarization is in effect
Maximum path: 4
Routing for Networks:
172.16.0.0
Routing Information Sources:
Gateway Distance Last Update
172.16.0.43 120 00:00:00
Distance: (default is 120)
R42#show ip route rip
172.16.0.0/24 is subnetted, 3 subnets
R 172.16.1.0 [120/1] via 172.16.0.43, 00:00:04, Serial2/0
R 172.16.2.0 [120/1] via 172.16.0.43, 00:00:04, Serial2/0
Step11:RIPv2からOSPFへの再配送の設定
R42でRIPv2からOSPFへ再配送を行い、RIPドメインのルートをOSPFでアドバタイズします。
R42 再配送
router ospf 1 redistribute rip subnets
Step12:RIPv2からOSPFへの再配送の確認
R42でRIPv2からOSPFへの再配送の設定を確認するため、以下のshowコマンドを実行します。
- show ip protocols
- show ip ospf database
R42 再配送の確認
R42#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 42.42.42.42
It is an autonomous system boundary router
Redistributing External Routes from,
rip, includes subnets in redistribution
Number of areas in this router is 1. 1 normal 0 stub 0 nssa
Maximum path: 4
Routing for Networks:
10.4.0.0 0.0.255.255 area 4
Reference bandwidth unit is 3000 mbps
Passive Interface(s):
Loopback0
Routing Information Sources:
Gateway Distance Last Update
41.41.41.41 110 00:01:16
Distance: (default is 110)
-- omitted --
R42#show ip ospf database
OSPF Router with ID (42.42.42.42) (Process ID 1)
Router Link States (Area 4)
Link ID ADV Router Age Seq# Checksum Link count
41.41.41.41 41.41.41.41 1353 0x80000002 0x006385 2
42.42.42.42 42.42.42.42 84 0x80000003 0x004892 2
Net Link States (Area 4)
Link ID ADV Router Age Seq# Checksum
10.4.1.42 42.42.42.42 1352 0x80000001 0x00EE1C
Type-5 AS External Link States
Link ID ADV Router Age Seq# Checksum Tag
172.16.0.0 42.42.42.42 83 0x80000001 0x0071C9 0
172.16.1.0 42.42.42.42 83 0x80000001 0x0066D3 0
172.16.2.0 42.42.42.42 83 0x80000001 0x005BDD 0
Step13:エリア0のOSPFの設定
R11/R12/R21/R31/R41でOSPFエリア0の設定を行います。Helloインターバルを1秒に変更にし、MD5によるネイバー認証を有効化します。また、R11がDR、R12がBDRになるように以下の表のようにそれぞれのルータのF0/0のOSPFプライオリティを設定します。
| インタフェース | プライオリティ |
|---|---|
| R11 F0/0 | 255 |
| R12 F0/0 | 100 |
| R21 F0/0 | 0 |
| R31 F0/0 | 0 |
| R41 F0/0 | 0 |
R11 エリア0 OSPFの設定
interface FastEthernet0/0 ip ospf authentication message-digest ip ospf message-digest-key 1 md5 cisco ip ospf hello-interval 1 ip ospf priority 255 router ospf 1 network 10.0.0.0 0.0.0.255 area 0
R12 エリア0 OSPFの設定
interface FastEthernet0/0 ip ospf authentication message-digest ip ospf message-digest-key 1 md5 cisco ip ospf hello-interval 1 ip ospf priority 100 router ospf 1 network 10.0.0.0 0.0.0.255 area 0
R21 エリア0 OSPFの設定
interface FastEthernet0/0 ip ospf authentication message-digest ip ospf message-digest-key 1 md5 cisco ip ospf hello-interval 1 ip ospf priority 0 router ospf 1 network 10.0.0.0 0.0.0.255 area 0
R31 エリア0 OSPFの設定
interface FastEthernet0/0 ip ospf authentication message-digest ip ospf message-digest-key 1 md5 cisco ip ospf hello-interval 1 ip ospf priority 0 router ospf 1 network 10.0.0.0 0.0.0.255 area 0
R41 エリア0 OSPFの設定
interface FastEthernet0/0 ip ospf authentication message-digest ip ospf message-digest-key 1 md5 cisco ip ospf hello-interval 1 ip ospf priority 0 router ospf 1 network 10.0.0.0 0.0.0.255 area 0
Step14:エリア0のOSPFの確認
エリア0のOSPFの設定を確認するために、以下のshowコマンドを実行します。
- show ip ospf interface F0/0
- show ip ospf neighbor
- show ip route ospf
R11の出力は次のようになります。
R11 エリア0 OSPFの確認
R11#show ip ospf interface fa0/0
FastEthernet0/0 is up, line protocol is up
Internet Address 10.0.0.11/24, Area 0
Process ID 1, Router ID 11.11.11.11, Network Type BROADCAST, Cost: 30
Transmit Delay is 1 sec, State DR, Priority 255
Designated Router (ID) 11.11.11.11, Interface address 10.0.0.11
Backup Designated router (ID) 12.12.12.12, Interface address 10.0.0.12
Timer intervals configured, Hello 1, Dead 4, Wait 4, Retransmit 5
oob-resync timeout 40
Hello due in 00:00:00
Supports Link-local Signaling (LLS)
Index 1/3, flood queue length 0
Next 0x0(0)/0x0(0)
Last flood scan length is 1, maximum is 6
Last flood scan time is 0 msec, maximum is 4 msec
Neighbor Count is 4, Adjacent neighbor count is 4
Adjacent with neighbor 12.12.12.12 (Backup Designated Router)
Adjacent with neighbor 21.21.21.21
Adjacent with neighbor 31.31.31.31
Adjacent with neighbor 41.41.41.41
Suppress hello for 0 neighbor(s)
Message digest authentication enabled
Youngest key id is 1
R11#show ip ospf neighbor
Neighbor ID Pri State Dead Time Address Interface
12.12.12.12 100 FULL/BDR 00:00:03 10.0.0.12 FastEthernet0/0
21.21.21.21 0 FULL/DROTHER 00:00:03 10.0.0.21 FastEthernet0/0
31.31.31.31 0 FULL/DROTHER 00:00:03 10.0.0.31 FastEthernet0/0
41.41.41.41 0 FULL/DROTHER 00:00:03 10.0.0.41 FastEthernet0/0
12.12.12.12 1 2WAY/DROTHER 00:00:36 10.1.1.12 FastEthernet1/0
13.13.13.13 1 FULL/BDR 00:00:37 10.1.1.13 FastEthernet1/0
14.14.14.14 1 FULL/DR 00:00:30 10.1.1.14 FastEthernet1/0
R11#show ip route ospf
172.16.0.0/24 is subnetted, 3 subnets
O E2 172.16.0.0 [110/20] via 10.0.0.41, 00:01:56, FastEthernet0/0
O E2 172.16.1.0 [110/20] via 10.0.0.41, 00:01:56, FastEthernet0/0
O E2 172.16.2.0 [110/20] via 10.0.0.41, 00:01:56, FastEthernet0/0
10.0.0.0/8 is variably subnetted, 19 subnets, 2 masks
O IA 10.3.1.0/24 [110/60] via 10.0.0.31, 00:02:06, FastEthernet0/0
O IA 10.2.23.23/32 [110/61] via 10.0.0.21, 00:02:06, FastEthernet0/0
O IA 10.2.22.22/32 [110/61] via 10.0.0.21, 00:02:06, FastEthernet0/0
O IA 10.2.21.21/32 [110/31] via 10.0.0.21, 00:02:06, FastEthernet0/0
O 10.1.3.0/24 [110/60] via 10.1.1.14, 00:02:55, FastEthernet1/0
O IA 10.3.31.31/32 [110/31] via 10.0.0.31, 00:02:06, FastEthernet0/0
O IA 10.2.1.0/24 [110/60] via 10.0.0.21, 00:02:06, FastEthernet0/0
O 10.1.2.0/24 [110/60] via 10.1.1.13, 00:02:55, FastEthernet1/0
O IA 10.2.2.0/24 [110/90] via 10.0.0.21, 00:02:06, FastEthernet0/0
O IA 10.2.3.0/24 [110/90] via 10.0.0.21, 00:02:06, FastEthernet0/0
O 10.1.14.14/32 [110/31] via 10.1.1.14, 00:02:55, FastEthernet1/0
O 10.1.13.13/32 [110/31] via 10.1.1.13, 00:02:55, FastEthernet1/0
O 10.1.12.12/32 [110/31] via 10.1.1.12, 00:02:55, FastEthernet1/0
O IA 10.4.42.42/32 [110/61] via 10.0.0.41, 00:02:06, FastEthernet0/0
O IA 10.4.41.41/32 [110/31] via 10.0.0.41, 00:02:06, FastEthernet0/0
O IA 10.4.1.0/24 [110/60] via 10.0.0.41, 00:02:06, FastEthernet0/0
Part1完了の設定ファイル
R11 Completed Configuration (Click)
! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R11 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.1.11.11 255.255.255.255 ! interface FastEthernet0/0 ip address 10.0.0.11 255.255.255.0 ip ospf authentication message-digest ip ospf message-digest-key 1 md5 cisco ip ospf hello-interval 1 ip ospf priority 255 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.1.1.11 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! router ospf 1 router-id 11.11.11.11 log-adjacency-changes auto-cost reference-bandwidth 3000 passive-interface Loopback0 network 10.0.0.0 0.0.0.255 area 0 network 10.1.0.0 0.0.255.255 area 1 ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R12 Completed Configuration (Click)
! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R12 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.1.12.12 255.255.255.255 ! interface FastEthernet0/0 ip address 10.0.0.12 255.255.255.0 ip ospf authentication message-digest ip ospf message-digest-key 1 md5 cisco ip ospf hello-interval 1 ip ospf priority 100 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.1.1.12 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! router ospf 1 router-id 12.12.12.12 log-adjacency-changes auto-cost reference-bandwidth 3000 passive-interface Loopback0 network 10.0.0.0 0.0.0.255 area 0 network 10.1.0.0 0.0.255.255 area 1 ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R13 Completed Configuration (Click)
! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R13 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.1.13.13 255.255.255.255 ! interface FastEthernet0/0 ip address 10.1.2.13 255.255.255.0 ip nat inside ip virtual-reassembly duplex auto speed auto ! interface FastEthernet1/0 ip address 10.1.1.13 255.255.255.0 ip nat inside ip virtual-reassembly duplex auto speed auto ! interface Serial2/0 ip address 100.1.0.1 255.255.255.252 ip nat outside ip virtual-reassembly serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! router ospf 1 router-id 13.13.13.13 log-adjacency-changes auto-cost reference-bandwidth 3000 passive-interface FastEthernet0/0 passive-interface Loopback0 network 10.1.0.0 0.0.255.255 area 1 ! ip http server ip forward-protocol nd ! ! ip nat inside source list 1 interface Serial2/0 overload ! access-list 1 permit 10.0.0.0 0.255.255.255 access-list 1 permit 172.16.0.0 0.0.255.255 ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R14 Completed Configuration (Click)
! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R14 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.1.14.14 255.255.255.255 ! interface FastEthernet0/0 ip address 10.1.3.14 255.255.255.0 ip nat inside ip virtual-reassembly duplex auto speed auto ! interface FastEthernet1/0 ip address 10.1.1.14 255.255.255.0 ip nat inside ip virtual-reassembly duplex auto speed auto ! interface Serial2/0 ip address 100.1.0.5 255.255.255.252 ip nat outside ip virtual-reassembly serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! router ospf 1 router-id 14.14.14.14 log-adjacency-changes auto-cost reference-bandwidth 3000 passive-interface FastEthernet0/0 passive-interface Loopback0 network 10.1.0.0 0.0.255.255 area 1 ! ip http server ip forward-protocol nd ! ! ip nat inside source list 1 interface Serial2/0 overload ! access-list 1 permit 10.0.0.0 0.255.255.255 access-list 1 permit 172.16.0.0 0.0.255.255 ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R21 Completed Configuration (Click)
! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R21 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.2.21.21 255.255.255.255 ! interface FastEthernet0/0 ip address 10.0.0.21 255.255.255.0 ip ospf authentication message-digest ip ospf message-digest-key 1 md5 cisco ip ospf hello-interval 1 ip ospf priority 0 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.2.1.21 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! router ospf 1 router-id 21.21.21.21 log-adjacency-changes auto-cost reference-bandwidth 3000 passive-interface Loopback0 network 10.0.0.0 0.0.0.255 area 0 network 10.2.0.0 0.0.255.255 area 2 ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R22 Initial Configuration (Click)
! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R22 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.2.22.22 255.255.255.255 ! interface FastEthernet0/0 ip address 10.2.2.22 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.2.1.22 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! router ospf 1 router-id 22.22.22.22 log-adjacency-changes auto-cost reference-bandwidth 3000 passive-interface FastEthernet0/0 passive-interface Loopback0 network 10.2.0.0 0.0.255.255 area 2 ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R23 Completed Configuration (Click)
! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R23 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.2.23.23 255.255.255.255 ! interface FastEthernet0/0 ip address 10.2.3.23 255.255.255.0 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.2.1.23 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! router ospf 1 router-id 23.23.23.23 log-adjacency-changes auto-cost reference-bandwidth 3000 passive-interface FastEthernet0/0 passive-interface Loopback0 network 10.2.0.0 0.0.255.255 area 2 ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R31 Completed Configuration (Click)
! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R31 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.3.31.31 255.255.255.255 ! interface FastEthernet0/0 ip address 10.0.0.31 255.255.255.0 ip ospf authentication message-digest ip ospf message-digest-key 1 md5 cisco ip ospf hello-interval 1 ip ospf priority 0 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.3.1.31 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! router ospf 1 router-id 23.23.23.23 log-adjacency-changes auto-cost reference-bandwidth 3000 passive-interface FastEthernet0/0 passive-interface Loopback0 network 10.0.0.0 0.0.0.255 area 0 network 10.2.0.0 0.0.255.255 area 2 ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R41 Completed Configuration (Click)
! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R41 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.4.41.41 255.255.255.255 ! interface FastEthernet0/0 ip address 10.0.0.41 255.255.255.0 ip ospf authentication message-digest ip ospf message-digest-key 1 md5 cisco ip ospf hello-interval 1 ip ospf priority 0 duplex auto speed auto ! interface FastEthernet1/0 ip address 10.4.1.41 255.255.255.0 duplex auto speed auto ! interface Serial2/0 no ip address shutdown serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! router ospf 1 router-id 41.41.41.41 log-adjacency-changes auto-cost reference-bandwidth 3000 passive-interface Loopback0 network 10.0.0.0 0.0.0.255 area 0 network 10.4.0.0 0.0.255.255 area 4 ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R42 Completed Configuration (Click)
! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R42 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.4.42.42 255.255.255.0 ! interface FastEthernet0/0 no ip address shutdown duplex auto speed auto ! interface FastEthernet1/0 ip address 10.4.1.42 255.255.255.0 duplex auto speed auto ! interface Serial2/0 ip address 172.16.0.42 255.255.255.0 serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! router ospf 1 router-id 42.42.42.42 log-adjacency-changes auto-cost reference-bandwidth 3000 redistribute rip subnets passive-interface Loopback0 network 10.4.0.0 0.0.255.255 area 4 ! router rip version 2 network 172.16.0.0 default-information originate ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
R43 Completed Configuration (Click)
! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname R43 ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 10.4.43.43 255.255.255.255 ! interface Loopback1 ip address 172.16.2.43 255.255.255.0 secondary ip address 172.16.1.43 255.255.255.0 ! interface FastEthernet0/0 no ip address shutdown duplex auto speed auto ! interface FastEthernet1/0 no ip address shutdown duplex auto speed auto ! interface Serial2/0 ip address 172.16.0.43 255.255.255.0 serial restart-delay 0 ! interface Serial2/1 no ip address shutdown serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! router rip version 2 passive-interface default no passive-interface Serial2/0 network 172.16.0.0 ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
ISP Completed Configuration (Click)
! ! ! ! ! ! ! ! ! version 12.4 service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname ISP ! boot-start-marker boot-end-marker ! ! no aaa new-model memory-size iomem 5 ! ! ip cef no ip domain lookup ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! interface Loopback0 ip address 100.1.1.1 255.255.255.0 ! interface FastEthernet0/0 no ip address shutdown duplex auto speed auto ! interface FastEthernet1/0 no ip address shutdown duplex auto speed auto ! interface Serial2/0 ip address 100.1.0.2 255.255.255.252 serial restart-delay 0 ! interface Serial2/1 ip address 100.1.0.6 255.255.255.252 serial restart-delay 0 ! interface Serial2/2 no ip address shutdown serial restart-delay 0 ! interface Serial2/3 no ip address shutdown serial restart-delay 0 ! ! ip http server ip forward-protocol nd ! ! ! ! ! ! control-plane ! ! ! ! mgcp behavior g729-variants static-pt ! ! ! ! ! line con 0 exec-timeout 0 0 privilege level 15 line aux 0 line vty 0 4 login ! ! end
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