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OSPF单区域配置 、 OSPF 多区域配置 、 OSPF 链路解析 、 OSPF协议概述 、 OSPF 综合案例

1 案例：配置OSPF单域

1.1 问题

  1. 如图，配置设备 IP 地址
  2. 配置 OSPF 协议，所有网段属于区域 0
  3. 验证 各路由器的邻接表
  4. 验证 各路由器的 OSPF 路由
  5. 确保 PC-1 和 PC-2 可以互通

1.2 方案

搭建实验环境，如图-1所示。

OSPF单区域配置 、 OSPF 多区域配置 、 OSPF 链路解析 、 OSPF协议概述 、 OSPF 综合案例图-1

1.3 步骤

实现此案例需要按照如下步骤进行。[hidecontent type=”payshow”]

1）配置终端设备 – PC1

  1. 地址：192.168.1.1
  2. 掩码：255.255.255.0
  3. 网关：192.168.1.254

2）配置终端设备 – PC2

  1. 地址：192.168.2.1
  2. 掩码：255.255.255.0
  3. 网关：192.168.2.254

3）配置网络设备 – R1

  1. <Huawei>system–view
  2. [Huawei]sysname R1
  3. [R1]interface GigabitEthernet 0/0/2
  4. [R1–GigabitEthernet 0/0/2] ip address 192.168.1.254 255.255.255.0
  5. [R1–GigabitEthernet 0/0/2] quit
  6. [R1]interface GigabitEthernet 0/0/0
  7. [R1–GigabitEthernet 0/0/0] ip address 192.168.12.1 255.255.255.0
  8. [R1–GigabitEthernet 0/0/0] quit

4）配置网络设备 – R2

  1. <Huawei>system–view
  2. [Huawei]sysname R2
  3. [R2]interface gi0/0/0
  4. [R2–GigabitEthernet 0/0/0] ip address 192.168.23.2 255.255.255.0
  5. [R2–GigabitEthernet 0/0/0] quit
  6. [R2]interface gi0/0/1
  7. [R2–GigabitEthernet 0/0/1] ip address 192.168.12.2 255.255.255.0
  8. [R2–GigabitEthernet 0/0/1] quit

5）配置网络设备 – R3

  1. <Huawei>system–view
  2. [Huawei]sysname R3
  3. [R3]interface GigabitEthernet 0/0/2
  4. [R3–GigabitEthernet 0/0/2] ip address 192.168.2.254 255.255.255.0
  5. [R3–GigabitEthernet 0/0/2] quit
  6. [R3]interface GigabitEthernet 0/0/1
  7. [R3–GigabitEthernet 0/0/1] ip address 192.168.23.3 255.255.255.0
  8. [R3–GigabitEthernet 0/0/1] quit

6）配置 OSPF 区域 0

  1. [R1]ospf 1 router–id 1.1.1.1
  2. [R1–ospf-1]area 0
  3. [R1–ospf-1–area-0.0.0.0]network 192.168.12.0 0.0.0.255
  4. [R1–ospf-1–area-0.0.0.0]network 192.168.1.0 0.0.0.255
  5. [R1–ospf-1–area-0.0.0.0]quit
  7. [R2]ospf 1 router–id 2.2.2.2
  8. [R2–ospf-1]area 0
  9. [R2–ospf-1–area-0.0.0.0]network 192.168.12.0 0.0.0.255
  10. [R2–ospf-1–area-0.0.0.0]network 192.168.23.0 0.0.0.255
  11. [R2–ospf-1–area-0.0.0.0]quit
  13. [R3]ospf 1 router–id 3.3.3.3
  14. [R3–ospf-1]area 0
  15. [R3–ospf-1–area-0.0.0.0]network 192.168.23.0 0.0.0.255
  16. [R3–ospf-1–area-0.0.0.0]network 192.168.2.0 0.0.0.255
  17. [R3–ospf-1–area-0.0.0.0]quit

7）验证 OSPF 邻接表

  1. [R1]display ospf peer brief
  2.      OSPF Process 1 with Router ID 1.1.1.1
  3.          Peer Statistic Information
  4. —————————————————————————-
  5. Area Id Interface Neighbor id State
  6. 0.0.0.0 GigabitEthernet0/0/0 2.2.2.2 Full
  7. —————————————————————————-
  9. [R2]display ospf peer brief
  10.      OSPF Process 1 with Router ID 2.2.2.2
  11.          Peer Statistic Information
  12. —————————————————————————-
  13. Area Id Interface Neighbor id State
  14. 0.0.0.0 GigabitEthernet0/0/1 1.1.1.1 Full
  15. 0.0.0.0 GigabitEthernet0/0/0 3.3.3.3 Full
  16. —————————————————————————-
  18. [R3]display ospf peer brief
  19.      OSPF Process 1 with Router ID 3.3.3.3
  20.          Peer Statistic Information
  21. —————————————————————————-
  22. Area Id Interface Neighbor id State
  23. 0.0.0.0 GigabitEthernet0/0/1 2.2.2.2 Full
  24. —————————————————————————-

8）验证 OSPF 路由表

  1. [R1]display ip routing–table protocol ospf
  2. Route Flags: R – relay, D – download to fib
  3. ——————————————————————————
  4. Destination/Mask Proto Pre Cost Flags NextHop Interface
  5. 192.168.2.0/24 OSPF 10 3 D 192.168.12.2 GigabitEthernet0/0/0
  6. 192.168.23.0/24 OSPF 10 2 D 192.168.12.2 GigabitEthernet0/0/0
  9. [R2]display ip routing–table protocol ospf
  10. Route Flags: R – relay, D – download to fib
  11. ——————————————————————————
  12. Destination/Mask Proto Pre Cost Flags NextHop Interface
  13. 192.168.1.0/24 OSPF 10 2 D 192.168.12.1 GigabitEthernet0/0/1
  14. 192.168.2.0/24 OSPF 10 2 D 192.168.23.3 GigabitEthernet0/0/0
  17. [R3]display ip routing–table protocol ospf
  18. Route Flags: R – relay, D – download to fib
  19. ——————————————————————————
  20. Destination/Mask Proto Pre Cost Flags NextHop Interface
  21. 192.168.1.0/24 OSPF 10 3 D 192.168.23.2 GigabitEthernet0/0/1
  22. 192.168.12.0/24 OSPF 10 2 D 192.168.23.2 GigabitEthernet0/0/1

9）测试 PC-1 与 PC-2 之间的连通性

  1. PC-1>ping 192.168.2.1
  2. Ping 192.168.2.1: 32 data bytes, Press Ctrl_C to break
  3. From 192.168.2.1: bytes=32 seq=1 ttl=125 time=31 ms
  4. From 192.168.2.1: bytes=32 seq=2 ttl=125 time=31 ms
  5. From 192.168.2.1: bytes=32 seq=3 ttl=125 time=16 ms
  6. From 192.168.2.1: bytes=32 seq=4 ttl=125 time=16 ms
  7. From 192.168.2.1: bytes=32 seq=5 ttl=125 time=31 ms
  9. — 192.168.2.1 ping statistics —
  10. 5 packet(s) transmitted
  11. 5 packet(s) received
  12. 0.00% packet loss
  13. round–trip min/avg/max = 16/25/31 ms
  15. PC-2>ping 192.168.1.1
  16. Ping 192.168.1.1: 32 data bytes, Press Ctrl_C to break
  17. From 192.168.1.1: bytes=32 seq=1 ttl=125 time=16 ms
  18. From 192.168.1.1: bytes=32 seq=2 ttl=125 time=31 ms
  19. From 192.168.1.1: bytes=32 seq=3 ttl=125 time=31 ms
  20. From 192.168.1.1: bytes=32 seq=4 ttl=125 time=32 ms
  21. From 192.168.1.1: bytes=32 seq=5 ttl=125 time=31 ms
  23. — 192.168.1.1 ping statistics —
  24. 5 packet(s) transmitted
  25. 5 packet(s) received
  26. 0.00% packet loss
  27. round–trip min/avg/max = 16/28/32 ms

2 案例：OSPF邻居表解析

2.1 问题

  1. 如图，配置设备 IP 地址
  2. 配置 OSPF 协议，所有网段属于区域 0
  3. 验证 各路由器的邻接表
  4. 确保 R1-R2之间不需要DR
  5. 确保 R2-R3之间，R2是DR

2.2 方案

搭建实验环境，如图-2所示。

OSPF单区域配置 、 OSPF 多区域配置 、 OSPF 链路解析 、 OSPF协议概述 、 OSPF 综合案例图-2

2.3 步骤

实现此案例需要按照如下步骤进行。

1）配置终端设备 – PC1

  1. 地址：192.168.1.1
  2. 掩码：255.255.255.0
  3. 网关：192.168.1.254

2）配置终端设备 – PC2

  1. 地址：192.168.2.1
  2. 掩码：255.255.255.0
  3. 网关：192.168.2.254

3）配置网络设备 – R1

  1. <Huawei>system–view
  2. [Huawei]sysname R1
  4. [R1]interface GigabitEthernet 0/0/2
  5. [R1–GigabitEthernet 0/0/2] ip address 192.168.1.254 255.255.255.0
  6. [R1–GigabitEthernet 0/0/2] quit
  8. [R1]interface GigabitEthernet 0/0/0
  9. [R1–GigabitEthernet 0/0/0] ip address 192.168.12.1 255.255.255.0
  10. [R1–GigabitEthernet 0/0/0] quit

4）配置网络设备 – R2

  1. <Huawei>system–view
  2. [Huawei]sysname R2
  4. [R2]interface gi0/0/0
  5. [R2–GigabitEthernet 0/0/0] ip address 192.168.23.2 255.255.255.0
  6. [R2–GigabitEthernet 0/0/0] quit
  8. [R2]interface gi0/0/1
  9. [R2–GigabitEthernet 0/0/1] ip address 192.168.12.2 255.255.255.0
  10. [R2–GigabitEthernet 0/0/1] quit

5）配置网络设备 – R3

  1. <Huawei>system–view
  2. [Huawei]sysname R3
  4. [R3]interface GigabitEthernet 0/0/2
  5. [R3–GigabitEthernet 0/0/2] ip address 192.168.2.254 255.255.255.0
  6. [R3–GigabitEthernet 0/0/2] quit
  8. [R3]interface GigabitEthernet 0/0/1
  9. [R3–GigabitEthernet 0/0/1] ip address 192.168.23.3 255.255.255.0
  10. [R3–GigabitEthernet 0/0/1] quit

6）配置 OSPF 区域 0

  1. [R1]ospf 1 router–id 1.1.1.1
  2. [R1–ospf-1]area 0
  3. [R1–ospf-1–area-0.0.0.0]network 192.168.12.0 0.0.0.255
  4. [R1–ospf-1–area-0.0.0.0]network 192.168.1.0 0.0.0.255
  5. [R1–ospf-1–area-0.0.0.0]quit
  7. [R2]ospf 1 router–id 2.2.2.2
  8. [R2–ospf-1]area 0
  9. [R2–ospf-1–area-0.0.0.0]network 192.168.12.0 0.0.0.255
  10. [R2–ospf-1–area-0.0.0.0]network 192.168.23.0 0.0.0.255
  11. [R2–ospf-1–area-0.0.0.0]quit
  14. [R3]ospf 1 router–id 3.3.3.3
  15. [R3–ospf-1]area 0
  16. [R3–ospf-1–area-0.0.0.0]network 192.168.23.0 0.0.0.255
  17. [R3–ospf-1–area-0.0.0.0]network 192.168.2.0 0.0.0.255
  18. [R3–ospf-1–area-0.0.0.0]quit

7）验证 OSPF 邻接表

  1. [R1]display ospf peer brief
  2.      OSPF Process 1 with Router ID 1.1.1.1
  3.          Peer Statistic Information
  4. —————————————————————————-
  5. Area Id Interface Neighbor id State
  6. 0.0.0.0 GigabitEthernet0/0/0 2.2.2.2 Full
  7. —————————————————————————-
  9. [R2]display ospf peer brief
  10.      OSPF Process 1 with Router ID 2.2.2.2
  11.          Peer Statistic Information
  12. —————————————————————————-
  13. Area Id Interface Neighbor id State
  14. 0.0.0.0 GigabitEthernet0/0/1 1.1.1.1 Full
  15. 0.0.0.0 GigabitEthernet0/0/0 3.3.3.3 Full
  16. —————————————————————————-
  18. [R3]display ospf peer brief
  19.      OSPF Process 1 with Router ID 3.3.3.3
  20.          Peer Statistic Information
  21. —————————————————————————-
  22. Area Id Interface Neighbor id State
  23. 0.0.0.0 GigabitEthernet0/0/1 2.2.2.2 Full
  24. —————————————————————————-

8）修改R1-R2之间的网络类型为P2P

  1. [R1]interface GigabitEthernet 0/0/0
  2. [R1–GigabitEthernet 0/0/0] ospf network–type p2p
  3. [R1–GigabitEthernet 0/0/0] quit
  4. [R2]interface GigabitEthernet 0/0/1
  5. [R2–GigabitEthernet 0/0/1] ospf network–type p2p
  6. [R2–GigabitEthernet 0/0/1] quit

9）确保R2-R3之间，R2是DR

  1. [R3]interface GigabitEthernet 0/0/1
  2. [R3–GigabitEthernet 0/0/1] ospf dr–priority 0
  3. [R3–GigabitEthernet 0/0/1] quit

3 案例：OSPF多区域的配置

3.1 问题

  1. 如图配置IP地址，设置OSPF区域
  2. 确保R1和R2之间不选举DR，R5为区域56的DR，为区域0的BDR
  3. 验证R2和R5的角色为 ABR
  4. 确保PC-1和 PC-2可以互通

3.2 方案

搭建实验环境，如图-3所示。

OSPF单区域配置 、 OSPF 多区域配置 、 OSPF 链路解析 、 OSPF协议概述 、 OSPF 综合案例图-3

3.3 步骤

实现此案例需要按照如下步骤进行。

1）配置IP地址，设置OSPF区域

  1. <Huawei>undo terminal monitor
  2. <Huawei>system–view
  3. [Huawei]sysname R1
  4. [R1]interface GigabitEthernet 0/0/0
  5. [R1–GigabitEthernet0/0/0]ip add 192.168.12.1 24
  6. [R1–GigabitEthernet0/0/0]quit
  7. [R1]interface GigabitEthernet 0/0/2
  8. [R1–GigabitEthernet0/0/2]ip add 192.168.1.1 24
  9. [R1–GigabitEthernet0/0/2]quit
  10. [R1]ospf 1 router–id 1.1.1.1
  11. [R1–ospf-1]area 12
  12. [R1–ospf-1–area-0.0.0.12]network 192.168.12.0 0.0.0.255
  13. [R1–ospf-1–area-0.0.0.12]network 192.168.1.0 0.0.0.255
  14. [R1–ospf-1–area-0.0.0.12]quit
  16. <Huawei>undo terminal monitor
  17. <Huawei>system–view
  18. [Huawei]sysname R2
  19. [R2]interface GigabitEthernet 0/0/1
  20. [R2–GigabitEthernet0/0/1]ip add 192.168.12.2 24
  21. [R2–GigabitEthernet0/0/1]quit
  22. [R2]interface GigabitEthernet 0/0/0
  23. [R2–GigabitEthernet0/0/0]ip add 192.168.23.2 24
  24. [R2–GigabitEthernet0/0/0]quit
  25. [R2]ospf 1 router–id 2.2.2.2
  26. [R2–ospf-1]area 12
  27. [R2–ospf-1–area-0.0.0.12]network 192.168.12.0 0.0.0.255
  28. [R2–ospf-1–area-0.0.0.12]quit
  29. [R2–ospf-1]area 0
  30. [R2–ospf-1–area-0.0.0.0]network 192.168.23.0 0.0.0.255
  31. [R2–ospf-1–area-0.0.0.0]quit
  33. <Huawei>undo terminal monitor
  34. <Huawei>system–view
  35. [Huawei]sysname R3
  36. [R3]interface GigabitEthernet 0/0/1
  37. [R3–GigabitEthernet0/0/1]ip add 192.168.23.3 24
  38. [R3–GigabitEthernet0/0/1]quit
  39. [R3]interface GigabitEthernet 0/0/0
  40. [R3–GigabitEthernet0/0/0]ip add 192.168.34.3 24
  41. [R3–GigabitEthernet0/0/0]quit
  42. [R3]ospf 1 router–id 3.3.3.3
  43. [R3–ospf-1]area 0
  44. [R3–ospf-1–area-0.0.0.0]network 192.168.23.0 0.0.0.255
  45. [R3–ospf-1–area-0.0.0.0]network 192.168.34.0 0.0.0.255
  46. [R3–ospf-1–area-0.0.0.0]quit
  48. <Huawei>undo terminal monitor
  49. <Huawei>system–view
  50. [Huawei]sysname R4
  51. [R4]interface GigabitEthernet 0/0/1
  52. [R4–GigabitEthernet0/0/1]ip add 192.168.34.4 24
  53. [R4–GigabitEthernet0/0/1]quit
  54. [R4]interface GigabitEthernet 0/0/0
  55. [R4–GigabitEthernet0/0/0]ip add 192.168.45.4 24
  56. [R4–GigabitEthernet0/0/0]quit
  57. [R4]ospf 1 router–id 4.4.4.4
  58. [R4–ospf-1]area 0
  59. [R4–ospf-1–area-0.0.0.0]network 192.168.45.0 0.0.0.255
  60. [R4–ospf-1–area-0.0.0.0]network 192.168.34.0 0.0.0.255
  61. [R4–ospf-1–area-0.0.0.0]quit
  63. <Huawei>undo terminal monitor
  64. <Huawei>system–view
  65. [Huawei]sysname R5
  66. [R5]interface GigabitEthernet 0/0/1
  67. [R5–GigabitEthernet0/0/1]ip add 192.168.45.5 24
  68. [R5–GigabitEthernet0/0/1]quit
  69. [R5]interface GigabitEthernet 0/0/0
  70. [R5–GigabitEthernet0/0/0]ip add 192.168.56.5 24
  71. [R5–GigabitEthernet0/0/0]quit
  72. [R5]ospf 1 router–id 5.5.5.5
  73. [R5–ospf-1]area 56
  74. [R5–ospf-1–area-0.0.0.56]network 192.168.56.0 0.0.0.255
  75. [R5–ospf-1–area-0.0.0.56]quit
  76. [R5–ospf-1]area 0
  77. [R5–ospf-1–area-0.0.0.0]network 192.168.45.0 0.0.0.255
  78. [R5–ospf-1–area-0.0.0.0]quit
  80. <Huawei>undo terminal monitor
  81. <Huawei>system–view
  82. [Huawei]sysname R6
  83. [R6]interface GigabitEthernet 0/0/1
  84. [R6–GigabitEthernet0/0/1]ip add 192.168.56.6 24
  85. [R6–GigabitEthernet0/0/1]quit
  86. [R6]interface GigabitEthernet 0/0/2
  87. [R6–GigabitEthernet0/0/2]ip add 192.168.2.254 24
  88. [R6–GigabitEthernet0/0/2]quit
  89. [R6]ospf 1 router–id 6.6.6.6
  90. [R6–ospf-1]area 56
  91. [R6–ospf-1–area-0.0.0.56]network 192.168.56.0 0.0.0.255
  92. [R6–ospf-1–area-0.0.0.56]network 192.168.2.0 0.0.0.255
  93. [R6–ospf-1–area-0.0.0.56]quit

2）设置R1和R2之间不选举DR配置

  1. [R1]interface GigabitEthernet 0/0/0
  2. [R1–GigabitEthernet0/0/0]ospf network–type p2p
  3. [R1–GigabitEthernet0/0/0]quit
  5. [R2]interface GigabitEthernet 0/0/1
  6. [R2–GigabitEthernet0/0/1]ospf network–type p2p
  7. [R2–GigabitEthernet0/0/1]quit

3）配置R5 为 区域 56 的 DR

  1. [R6]interface GigabitEthernet 0/0/1
  2. [R6–GigabitEthernet0/0/1] ospf dr–priority 0
  3. [R6–GigabitEthernet0/0/1]quit

4）配置 R5 为 区域 0 的 BDR

  1. [R4]interface GigabitEthernet 0/0/0
  2. [R4–GigabitEthernet0/0/0]ospf dr–priority 10
  3. [R4–GigabitEthernet0/0/0]quit

5）验证R2和R5是 ABR 的 角色

  1. [R2]display ospf brief
  3.      OSPF Process 1 with Router ID 2.2.2.2
  4.          OSPF Protocol Information
  6. RouterID: 2.2.2.2 Border Router: AREA // R2 为 ABR
  7. Multi–VPN–Instance is not enabled
  8. Global DS–TE Mode: Non–Standard IETF Mode
  9. （……）
  11. [R5]display ospf brief
  13.      OSPF Process 1 with Router ID 5.5.5.5
  14.          OSPF Protocol Information
  16. RouterID: 5.5.5.5 Border Router: AREA // R2 为 ABR
  17. Multi–VPN–Instance is not enabled
  18. Global DS–TE Mode: Non–Standard IETF Mode
  19. （……）

6）确保PC-1和 PC-2互通

  1. PC-1>ping 192.168.2.1
  2. Ping 192.168.2.1: 32 data bytes, Press Ctrl_C to break
  3. From 192.168.2.1: bytes=32 seq=1 ttl=125 time=31 ms
  4. From 192.168.2.1: bytes=32 seq=2 ttl=125 time=31 ms
  5. From 192.168.2.1: bytes=32 seq=3 ttl=125 time=16 ms
  6. From 192.168.2.1: bytes=32 seq=4 ttl=125 time=16 ms
  7. From 192.168.2.1: bytes=32 seq=5 ttl=125 time=31 ms
  9. — 192.168.2.1 ping statistics —
  10. 5 packet(s) transmitted
  11. 5 packet(s) received
  12. 0.00% packet loss
  13. round–trip min/avg/max = 16/25/31 ms
  15. PC-2>ping 192.168.1.1
  16. Ping 192.168.1.1: 32 data bytes, Press Ctrl_C to break
  17. From 192.168.1.1: bytes=32 seq=1 ttl=125 time=16 ms
  18. From 192.168.1.1: bytes=32 seq=2 ttl=125 time=31 ms
  19. From 192.168.1.1: bytes=32 seq=3 ttl=125 time=31 ms
  20. From 192.168.1.1: bytes=32 seq=4 ttl=125 time=32 ms
  21. From 192.168.1.1: bytes=32 seq=5 ttl=125 time=31 ms
  23. — 192.168.1.1 ping statistics —
  24. 5 packet(s) transmitted
  25. 5 packet(s) received
  26. 0.00% packet loss
  27. round–trip min/avg/max = 16/28/32 ms

4 案例：OSPF 综合案例

4.1 问题

  1. 如图配置IP地址，规划OSPF区域
  2. 配置每个OSPF路由器的 RID 为 10.10.X.X (X为路由器号码)
  3. 确保区域20中，只有1个DR，R3为DR
  4. 确保区域0中，没有 DR
  5. 确保区域0中使用不同网络类型
  6. 确保 R6上，192.168.12.0/24的 cost为10
  7. 确保 R2上，192.168.67.0/24的 cost 为 23
  8. 配置 ACL，确保 R6-R7 无法建立 OSPF 邻居

4.2 方案

搭建实验环境，如图-4所示。

OSPF单区域配置 、 OSPF 多区域配置 、 OSPF 链路解析 、 OSPF协议概述 、 OSPF 综合案例图-4

4.3 步骤

实现此案例需要按照如下步骤进行。

1）配置IP地址，设置OSPF区域

  1. <Huawei>undo terminal monitor
  2. <Huawei>system–view
  3. [Huawei]sysname R1
  4. [R1]interface GigabitEthernet 0/0/0
  5. [R1–GigabitEthernet0/0/0]ip add 192.168.12.1 24
  6. [R1–GigabitEthernet0/0/0]quit
  7. [R1]ospf 1 router–id 1.1.1.1
  8. [R1–ospf-1]area 20
  9. [R1–ospf-1–area-0.0.0.20]network 192.168.12.0 0.0.0.255
  10. [R1–ospf-1–area-0.0.0.20]quit
  12. <Huawei>undo terminal monitor
  13. <Huawei>system–view
  14. [Huawei]sysname R2
  15. [R2]interface GigabitEthernet 0/0/1
  16. [R2–GigabitEthernet0/0/1]ip add 192.168.12.2 24
  17. [R2–GigabitEthernet0/0/1]quit
  18. [R2]interface GigabitEthernet 0/0/0
  19. [R2–GigabitEthernet0/0/0]ip add 192.168.23.2 24
  20. [R2–GigabitEthernet0/0/0]quit
  21. [R2]ospf 1 router–id 2.2.2.2
  22. [R2–ospf-1]area 20
  23. [R2–ospf-1–area-0.0.0.20]network 192.168.12.0 0.0.0.255
  24. [R2–ospf-1–area-0.0.0.20]network 192.168.23.0 0.0.0.255
  25. [R2–ospf-1–area-0.0.0.20]quit
  27. <Huawei>undo terminal monitor
  28. <Huawei>system–view
  29. [Huawei]sysname R3
  30. [R3]interface GigabitEthernet 0/0/1
  31. [R3–GigabitEthernet0/0/1]ip add 192.168.23.3 24
  32. [R3–GigabitEthernet0/0/1]quit
  33. [R3]interface GigabitEthernet 0/0/0
  34. [R3–GigabitEthernet0/0/0]ip add 192.168.34.3 24
  35. [R3–GigabitEthernet0/0/0]quit
  36. [R3]ospf 1 router–id 3.3.3.3
  37. [R3–ospf-1]area 0
  38. [R3–ospf-1–area-0.0.0.0]network 192.168.34.0 0.0.0.255
  39. [R3–ospf-1–area-0.0.0.0]quit
  40. [R3–ospf-1]area 20
  41. [R3–ospf-1–area-0.0.0.20]network 192.168.23.0 0.0.0.255
  42. [R3–ospf-1–area-0.0.0.0]quit
  44. <Huawei>undo terminal monitor
  45. <Huawei>system–view
  46. [Huawei]sysname R4
  47. [R4]interface GigabitEthernet 0/0/1
  48. [R4–GigabitEthernet0/0/1]ip add 192.168.34.4 24
  49. [R4–GigabitEthernet0/0/1]quit
  50. [R4]interface GigabitEthernet 0/0/0
  51. [R4–GigabitEthernet0/0/0]ip add 192.168.45.4 24
  52. [R4–GigabitEthernet0/0/0]quit
  53. [R4]ospf 1 router–id 4.4.4.4.
  54. [R4–ospf-1]area 0
  55. [R4–ospf-1–area-0.0.0.0]network 192.168.45.0 0.0.0.255
  56. [R4–ospf-1–area-0.0.0.0]network 192.168.34.0 0.0.0.255
  57. [R4–ospf-1–area-0.0.0.0]quit
  59. <Huawei>undo terminal monitor
  60. <Huawei>system–view
  61. [Huawei]sysname R5
  62. [R5]interface GigabitEthernet 0/0/1
  63. [R5–GigabitEthernet0/0/1]ip add 192.168.45.5 24
  64. [R5–GigabitEthernet0/0/1]quit
  65. [R5]interface GigabitEthernet 0/0/0
  66. [R5–GigabitEthernet0/0/0]ip add 192.168.56.5 24
  67. [R5–GigabitEthernet0/0/0]quit
  68. [R5]ospf 1 router–id 5.5.5.5
  69. [R5–ospf-1]area 6
  70. [R5–ospf-1–area-0.0.0.6]network 192.168.56.0 0.0.0.255
  71. [R5–ospf-1–area-0.0.0.6]quit
  72. [R5–ospf-1]area 0
  73. [R5–ospf-1–area-0.0.0.0]network 192.168.45.0 0.0.0.255
  74. [R5–ospf-1–area-0.0.0.0]quit
  76. <Huawei>undo terminal monitor
  77. <Huawei>system–view
  78. [Huawei]sysname R6
  79. [R6]interface GigabitEthernet 0/0/1
  80. [R6–GigabitEthernet0/0/1]ip add 192.168.56.6 24
  81. [R6–GigabitEthernet0/0/1]quit
  82. [R6]interface GigabitEthernet 0/0/0
  83. [R6–GigabitEthernet0/0/0]ip add 192.168.67.6 24
  84. [R6–GigabitEthernet0/0/0]quit
  85. [R6]ospf 1 router–id 6.6.6.6
  86. [R6–ospf-1]area 6
  87. [R6–ospf-1–area-0.0.0.6]network 192.168.56.0 0.0.0.255
  88. [R6–ospf-1–area-0.0.0.6]network 192.168.67.0 0.0.0.255
  89. [R6–ospf-1–area-0.0.0.6]quit
  91. <Huawei>undo terminal monitor
  92. <Huawei>system–view
  93. [Huawei]sysname R7
  94. [R7]interface GigabitEthernet 0/0/1
  95. [R7–GigabitEthernet0/0/1]ip add 192.168.67.7 24
  96. [R7–GigabitEthernet0/0/1]quit
  97. [R7]ospf 1 router–id 7.7.7.7
  98. [R7–ospf-1]area 6
  99. [R7–ospf-1–area-0.0.0.6]network 192.168.67.0 0.0.0.255
  100. [R7–ospf-1–area-0.0.0.6]quit

2）配置区域20中的DR

  1. [R1]interface GigabitEthernet 0/0/0
  2. [R1–GigabitEthernet0/0/0]ospf network–type p2p
  3. [R1–GigabitEthernet0/0/0]quit
  5. [R2]interface GigabitEthernet 0/0/1
  6. [R2–GigabitEthernet0/0/1]ospf network–type p2p
  7. [R2–GigabitEthernet0/0/1]quit
  9. [R2]interface GigabitEthernet 0/0/0
  10. [R2–GigabitEthernet0/0/0]ospf dr–priority 0
  11. [R2–GigabitEthernet0/0/0]quit

3）确保区域0中没有DR

  1. [R3]interface GigabitEthernet 0/0/0
  2. [R3–GigabitEthernet0/0/0]ospf network–type p2p
  3. [R3–GigabitEthernet0/0/0]quit
  5. [R4]interface GigabitEthernet 0/0/1
  6. [R4–GigabitEthernet0/0/1]ospf network–type p2p
  7. [R4–GigabitEthernet0/0/1]quit
  9. [R4]interface GigabitEthernet 0/0/0
  10. [R4–GigabitEthernet0/0/0]ospf network–type p2mp
  11. [R4–GigabitEthernet0/0/0]quit
  13. [R5]interface GigabitEthernet 0/0/1
  14. [R5–GigabitEthernet0/0/1]ospf network–type p2mp
  15. [R5–GigabitEthernet0/0/1]quit

4）确保R6的路由表中 192.168.12.0/24 的 cost 为10

  1. [R6]interface GigabitEthernet 0/0/1
  2. [R6–GigabitEthernet0/0/1]ospf cost 6
  3. [R6–GigabitEthernet0/0/1]quit

5）确保R2的路由表中 192.168.67.0/24 的 cost 为23

  1. [R2]interface GigabitEthernet 0/0/1
  2. [R2–GigabitEthernet0/0/1]ospf cost 19
  3. [R2–GigabitEthernet0/0/1]quit

6）配置ACL，确保R6和R7之间无法建立OSPF邻居

  1. [R7]acl 3000
  2. [R7–acl–adv-3000]rule 10 deny ospf source 192.168.67.6 0.0.0.0 destination 224.0.0.5 0
  3. [R7]interface GigabitEthernet 0/0/1
  4. [R7–GigabitEthernet0/0/1]traffic–filter inbound acl 3000[/hidecontent]

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静态NAT配置 、 动态PNAT之EasyIP 、 静态PNAT之NAT Server 、 动态NAT配置 、 PNAT原理与配置 、 NAT场景与原理

2021-12-27 14:36:18

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2021-12-27 14:38:31

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