命令如下:
条件
PC1:
192.168.1.1/24
192.168.1.254
PC2:
192.168.2.1/24
192.168.2.254
三台路由器型号为AR2220路由
===============================================
三台路由配置命令如下
AR-1配置:
<Huawei>system-view //进系统视图
[Huawei]sysname AR-1 //修改主机名为AR-1
[AR-1]int g0/0/2 //进g0/0/2接口
[AR-1-GigabitEthernet0/0/2]ip address 192.168.1.254 24 //配置IP地址和子网掩码
[AR-1-GigabitEthernet0/0/2]int g0/0/0 //切换接口
[AR-1-GigabitEthernet0/0/0]ip address 192.168.12.1 24 //配置IP地址和子网掩码
在AR-1上配置ospf命令如下:
[AR-1]ospf 1 router-id 1.1.1.1 //给ospf 1 设置名称为1.1.1.1
[AR-1-ospf-1]area 0 //进入骨干区域 0
[AR-1-ospf-1-area-0.0.0.0]network 192.168.1.0 0.0.0.255 //在骨干区域内设置IP地址和反掩码地址
[AR-1-ospf-1-area-0.0.0.0]network 192.168.12.0 0.0.0.255 //在骨干区域内设置IP地址和反掩码地址
===========================================================================================
AR-2配置:
<Huawei>system-view //进系统视图
[Huawei]sysname AR-2 //修改主机名为AR-2
[AR-2]int g0/0/0 //进g0/0/0接口
[AR-2-GigabitEthernet0/0/0]ip address 192.168.23.2 24 //配置IP地址和子网掩码
[AR-2-GigabitEthernet0/0/0]int g0/0/1 //切换接口
[AR-2-GigabitEthernet0/0/1]ip address 192.168.12.2 24 //配置IP地址和子网掩码
在AR-2上配置ospf命令如下
[AR-2]ospf 1 router-id 2.2.2.2 //给ospf 1 配置个名字为2.2.2.2
[AR-2-ospf-1]area 0 //进入骨干区域
[AR-2-ospf-1-area-0.0.0.0]network 192.168.12.0 0.0.0.255 //配置IP地址和反掩码地址
[AR-2-ospf-1-area-0.0.0.0]network 192.168.23.0 0.0.0.255 //配置IP地址和反掩码地址
============================================================================================
AR-3配置:
<Huawei>system-view //进系统视图
[Huawei]sysname AR-3 //修改主机名为AR-3
[AR-3]int g0/0/2 //进g0/0/2接口
[AR-3-GigabitEthernet0/0/2]ip address 192.168.2.254 24 //配置IP地址和子网掩码
[AR-3-GigabitEthernet0/0/2]int g0/0/1 //切换接口
[AR-3-GigabitEthernet0/0/1]ip address 192.168.23.2 24 //配置IP地址和子网掩码
在AR-3上配置ospf命令如下
[AR-3]ospf 1 router-id 3.3.3.3 //给ospf 1 配置个名字为3.3.3.3
[AR-3-ospf-1]area 0 //进入骨干区域
[AR-3-ospf-1-area-0.0.0.0]network 192.168.23.0 0.0.0.255 //配置IP地址和反掩码地址
[AR-3-ospf-1-area-0.0.0.0]network 192.168.2.0 0.0.0.255 //配置IP地址和反掩码地址
[AR-3-ospf-1-area-0.0.0.0]q //退到上一层
[AR-3-ospf-1]q //继续退，退到上一层系统视图
修改cost值命令如下:
[AR-3]int g0/0/1 //进入g0/0/1接口
[AR-3-GigabitEthernet0/0/1]ospf cost 9 //将g0/0/1接口的cost修改为9 默认为1
检查出错误:
IP地址配置错误
[AR-3]dis ip int bri
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 1
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 1
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 unassigned down down
GigabitEthernet0/0/1 192.168.23.2/24 up up //找到的错误，IP地址配置错误
GigabitEthernet0/0/2 192.168.2.254/24 up up
NULL0 unassigned up up(s)
[AR-3]int g0/0/1
修改方法:
[AR-3]int g0/0/1 //进接口
[AR-3-GigabitEthernet0/0/1]ip address 192.168.23.3 24 //修改IP地址和子网掩码
========================================================================================
验证和测试
[AR-3]dis ospf peer brief //查看ospf邻居关系表
OSPF Process 1 with Router ID 3.3.3.3
Peer Statistic Information
----------------------------------------------------------------------------
Area Id Interface Neighbor id State
0.0.0.0 GigabitEthernet0/0/1 2.2.2.2 Full
----------------------------------------------------------------------------
如果出现这个，就没有问题，如果没有出现上面的信息，那么你要进行检查或排查错误，排查命令如下:
1、在系统视图中查看IP地址和子网掩码看看有没有配置错误 命令查看如下:
[AR-3]dis ip int bri //查看IP地址和子网掩码详细信息
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 1
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 1
Interface IP Address/Mask Physical Protocol
GigabitEthernet0/0/0 unassigned down down
GigabitEthernet0/0/1 192.168.23.3/24 up up
GigabitEthernet0/0/2 192.168.2.254/24 up up
NULL0 unassigned up up(s)
2、就是进入查看ospf查看区域内的IP地址和反掩码，命令如下:
[AR-3]ospf 1 //进入ospf
[AR-3-ospf-1]dis th //查看ospf内的配置命令
[V200R003C00]
#
ospf 1 router-id 3.3.3.3
area 0.0.0.0
network 192.168.2.0 0.0.0.255
network 192.168.23.0 0.0.0.255
#
return
=============================================================================
[AR-3]dis ip routing-table protocol ospf //查看ospf路由表
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : OSPF
Destinations : 2 Routes : 2
OSPF routing table status : <Active>
Destinations : 2 Routes : 2
Destination/Mask Proto Pre Cost Flags NextHop Interface
192.168.1.0/24 OSPF 10 11 D 192.168.23.2 GigabitEthernet
0/0/1
192.168.12.0/24 OSPF 10 10 D 192.168.23.2 GigabitEthernet
0/0/1
OSPF routing table status : <Inactive>
Destinations : 0 Routes : 0
===================================================================================
如果输入没有查看到ospf路由表，查看思路如下:
1、检查ospf区域内的IP地址
进入ospf内的详细信息
[AR-3]ospf 1 //进入ospf 1
[AR-3-ospf-1]dis this //查看ospf内的命令信息
2、在此查看IP地址和子网掩码
在系统视图下查看IP地址和子网掩码命令如下
[AR-3]dis ip int bri //查看IP地址和子网掩码详细信息
===================================================================================
测试pc和pc之间可以互通如图所示:
我是那pc1区pingpc2的IP地址，可以ping通即可完成实验
