ospf与ISIS之间的路由引入-实验配置

原创 于 2025-04-14 15:38:52 发布 · 194 阅读 · 2 ·
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#网络

一、实验前瞻。

        本实验聚焦于IS-IS与OSPF动态路由协议间的路由重分发技术，旨在通过实践掌握多协议协同组网的核心配置方法。实验基于典型网络拓扑，首先完成设备基础配置（重命名、IP地址分配），并分别在指定设备上启用OSPF与IS-IS协议，构建初始路由环境。随后，通过关键步骤实现双向路由引入：在R3上将IS-IS路由注入OSPF域（import-route isis），并将OSPF路由回灌至IS-IS域（import-route ospf），最终验证路由表的动态更新效果。

二、综合实验

1、实验拓扑

2、配置命令

<Huawei>sys
[Huawei]un in e
[Huawei]sysname r1
[r1]inter	
[r1]interface g0/0/0
[r1-GigabitEthernet0/0/0]ip address 12.1.1.1 24
[r1-GigabitEthernet0/0/0]quit
[r1]inter loo	
[r1]inter LoopBack 0
[r1-LoopBack0]ip address 1.1.1.1 32
[r1-LoopBack0]quit
[r1]ospf router-id 1.1.1.1
[r1-ospf-1]area 0
[r1-ospf-1-area-0.0.0.0]network 12.1.1.0 0.0.0.255
[r1-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0
[r1-ospf-1-area-0.0.0.0]quit
[r1]display ip routing-table 

<Huawei>sys
[Huawei]un in e
[Huawei]sysname r2
[r2]undo info-center enable	
[r2]interface g0/0/1
[r2-GigabitEthernet0/0/1]ip address 12.1.1.2 24
[r2-GigabitEthernet0/0/1]quit
[r2]interface g0/0/0
[r2-GigabitEthernet0/0/0]ip address 23.1.1.2 24
[r2-GigabitEthernet0/0/0]quit
[r2]int	
[r2]interface loo	
[r2]interface LoopBack 0
[r2-LoopBack0]ip address 2.2.2.2 32
[r2-LoopBack0]quit
[r2]ospf router-id 2.2.2.2
[r2-ospf-1]area 0
[r2-ospf-1-area-0.0.0.0]network 12.1.1.0 0.0.0.255
[r2-ospf-1-area-0.0.0.0]network 23.1.1.0 0.0.0.255
[r2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0
[r2-ospf-1-area-0.0.0.0]quit
[Huawei]un in e
[Huawei]sysname r3
[r3]interface g0/0/1
[r3-GigabitEthernet0/0/1]ip address 23.1.1.3 24
[r3-GigabitEthernet0/0/1]quit
[r3]interface g0/0/0
[r3-GigabitEthernet0/0/0]ip address 34.1.1.3 24
[r3-GigabitEthernet0/0/0]quit
[r3]interface LoopBack 0
[r3-LoopBack0]ip address 3.3.3.3 32
[r3-LoopBack0]quit
[r3]ospf router-id 3.3.3.3
[r3-ospf-1]area 0
[r3-ospf-1-area-0.0.0.0]network 23.1.1.0 0.0.0.255
[r3-ospf-1-area-0.0.0.0]network 3.3.3.3 0.0.0.0
[r3-ospf-1-area-0.0.0.0]quit
[r3-ospf-1]q
[r3]isis
[r3-isis-1]network-entity 49.0345.0000.0000.0003.00
[r3-isis-1]is-level level-2
[r3-isis-1]quit
[r3]inter	
[r3]interface g0/0/0
[r3-GigabitEthernet0/0/0]isis enable
[r3-GigabitEthernet0/0/0]quit

<Huawei>sys
[Huawei]un in e
[Huawei]sysname r4
[r4]interface g0/0/1
[r4-GigabitEthernet0/0/1]ip address 34.1.1.4 24
[r4-GigabitEthernet0/0/1]quit
[r4]interface g0/0/0
[r4-GigabitEthernet0/0/0]ip address 45.1.1.4 24
[r4-GigabitEthernet0/0/0]quit
[r4]interface LoopBack 0
[r4-LoopBack0]ip address 4.4.4.4 32
[r4-LoopBack0]quit
[r4]isis
[r4-isis-1]network-entity 49.0345.0000.0000.0004.00
[r4-isis-1]is-level level-2
[r4-isis-1]quit
[r4]interface g0/0/1
[r4-GigabitEthernet0/0/1]isis enable
[r4-GigabitEthernet0/0/1]quit
[r4]interface g0/0/0
[r4-GigabitEthernet0/0/0]isis enable
[r4-GigabitEthernet0/0/0]quit
[r4]interface LoopBack 0
[r4-LoopBack0]isis enable
[r4-LoopBack0]quit


[Huawei]un in e
[Huawei]sysname r5
[r5]interface g0/0/1
[r5-GigabitEthernet0/0/1]ip address 45.1.1.5 24
[r5-GigabitEthernet0/0/1]quit
[r5]inter	
[r5]interface loo	
[r5]interface LoopBack 0
[r5-LoopBack0]ip address 5.5.5.5 32
[r5-LoopBack0]quit
[r5]isis
[r5-isis-1]net	
[r5-isis-1]network-entity 49.0345.0000.0000.0005.00
[r5-isis-1]is-level level-2
[r5-isis-1]quit
[r5]inter g0/0/1
[r5-GigabitEthernet0/0/1]isis enable
[r5-GigabitEthernet0/0/1]quit
[r5]interface LoopBack 0
[r5-LoopBack0]isis enable
[r5-LoopBack0]quit
[r5]display ip routing-table

当上面配置完成后在R1和R5上查看路由表

<r1>display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 15       Routes : 15       

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

        1.1.1.1/32  Direct  0    0           D   127.0.0.1       LoopBack0
        2.2.2.2/32  OSPF    10   1           D   12.1.1.2        GigabitEthernet0/0/0
        3.3.3.3/32  OSPF    10   2           D   12.1.1.2        GigabitEthernet0/0/0
       12.1.1.0/24  Direct  0    0           D   12.1.1.1        GigabitEthernet0/0/0
       12.1.1.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0
     12.1.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/0
       23.1.1.0/24  OSPF    10   2           D   12.1.1.2        GigabitEthernet0/0/0
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

<r1>
<r5>display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 15       Routes : 15       

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

        4.4.4.4/32  ISIS-L2 15   10          D   45.1.1.4        GigabitEthernet0/0/1
        5.5.5.5/32  Direct  0    0           D   127.0.0.1       LoopBack0
       34.1.1.0/24  ISIS-L2 15   20          D   45.1.1.4        GigabitEthernet0/0/1
       45.1.1.0/24  Direct  0    0           D   45.1.1.5        GigabitEthernet0/0/1
       45.1.1.5/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/1
     45.1.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet0/0/1
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

在R3上将ISIS引入ospf

[r3]ospf
[r3-ospf-1]import-route isis
[r3-ospf-1]quit

查看路由表

<r1>display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 15       Routes : 15       

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

        1.1.1.1/32  Direct  0    0           D   127.0.0.1       LoopBack0
        2.2.2.2/32  OSPF    10   1           D   12.1.1.2        GigabitEthernet
0/0/0
        3.3.3.3/32  OSPF    10   2           D   12.1.1.2        GigabitEthernet
0/0/0
        4.4.4.4/32  O_ASE   150  1           D   12.1.1.2        GigabitEthernet
0/0/0
        5.5.5.5/32  O_ASE   150  1           D   12.1.1.2        GigabitEthernet
0/0/0
       12.1.1.0/24  Direct  0    0           D   12.1.1.1        GigabitEthernet
0/0/0
       12.1.1.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
     12.1.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
       23.1.1.0/24  OSPF    10   2           D   12.1.1.2        GigabitEthernet
0/0/0
       34.1.1.0/24  O_ASE   150  1           D   12.1.1.2        GigabitEthernet
0/0/0
       45.1.1.0/24  O_ASE   150  1           D   12.1.1.2        GigabitEthernet
0/0/0
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

在R3上将ospf引入ISIS

[r3]isis
[r3-isis-1]import-route ospf
[r3-isis-1]quit

查看路由表

<r5>display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
         Destinations : 15       Routes : 15       

Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface

        1.1.1.1/32  ISIS-L2 15   84          D   45.1.1.4        GigabitEthernet
0/0/1
        2.2.2.2/32  ISIS-L2 15   84          D   45.1.1.4        GigabitEthernet
0/0/1
        3.3.3.3/32  ISIS-L2 15   84          D   45.1.1.4        GigabitEthernet
0/0/1
        4.4.4.4/32  ISIS-L2 15   10          D   45.1.1.4        GigabitEthernet
0/0/1
        5.5.5.5/32  Direct  0    0           D   127.0.0.1       LoopBack0
       12.1.1.0/24  ISIS-L2 15   84          D   45.1.1.4        GigabitEthernet
0/0/1
       23.1.1.0/24  ISIS-L2 15   84          D   45.1.1.4        GigabitEthernet
0/0/1
       34.1.1.0/24  ISIS-L2 15   20          D   45.1.1.4        GigabitEthernet
0/0/1
       45.1.1.0/24  Direct  0    0           D   45.1.1.5        GigabitEthernet
0/0/1
       45.1.1.5/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
     45.1.1.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1
      127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0
      127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0

<r5>

至此全部配置完成，ospf区域可以查看带ISIS的路由表。ISIS区域可以查看到ospf得出路由表。

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