实验背景
如果在一个网络中既有RIP又有OSPF并且希望全网互连互通，那么我们就需要使用路由引入。在华三中讲到路由引入时，注意引入时只会将IP路由表以该路由协议存在的路由引入，换句话说引入不会将本地直连路由引入。所以在路由引入实验还需要引入直连路由协议。但是在华为路由器中，可以直接使用命令import-route rip/ospf即可将本地的直连路由也引入。
实验拓补
实验思路
1：我们按如图所示配置接口的IP地址，以及loopback地址。（routerID即loopback地址）
2：在OSPF的area0骨干区域宣告椭圆圈内的所有网段
3：在RIP协议里面宣告方框内的所有网段。
4：在R2路由器里，进行路由引入。
实验代码
AR1
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]undo info-center enable
Info: Information center is disabled.
[Huawei]sysname R1
[R1]interface GigabitEthernet 0/0/0 //配置IP地址
[R1-GigabitEthernet0/0/0]ip address 172.16.1.1 24
[R1-GigabitEthernet0/0/0]quit
[R1]interface LoopBack 0//进入loopback接口，并配置IP地址
[R1-LoopBack0]ip address 1.1.1.1 32
[R1-LoopBack0]quit
[R1]ospf 1 router-id 1.1.1.1 //创建OSPF进程1，设置routerID为1.1.1.1
[R1-ospf-1]area 0//进入骨干区域0
[R1-ospf-1-area-0.0.0.0]network 172.16.1.0 0.0.0.255 //宣告172.16.1.0网段
[R1-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0//宣告loopbackip地址1.1.1.1
[R1-ospf-1-area-0.0.0.0]quit
AR2
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]undo info-center enable
Info: Information center is disabled.
[Huawei]sysname R2 //将设备命名为R2
[R2]interface GigabitEthernet 0/0/0 //配置IP地址
[R2-GigabitEthernet0/0/0]ip address 172.16.1.254 24
[R2-GigabitEthernet0/0/0]quit
[R2]interface GigabitEthernet 0/0/1//配置IP地址
[R2-GigabitEthernet0/0/1]ip address 192.168.1.1 24
[R2-GigabitEthernet0/0/1]quit
[R2]interface LoopBack 0 //进入loopback0接口，并配置IP地址，掩码是32位
[R2-LoopBack0]ip address 2.2.2.2 32
[R2-LoopBack0]quit
[R2]ospf 1 router-id 2.2.2.2 //创建OSPF进程1，设置routerID为2.2.2.2
[R2-ospf-1]area 0 //进入骨干区域0
[R2-ospf-1-area-0.0.0.0]network 172.16.1.0 0.0.0.255 //宣告172.16.1.0网段
[R2-ospf-1-area-0.0.0.0]network 2.2.2.2 0.0.0.0//宣告loopback地址2.2.2.2
[R2-ospf-1-area-0.0.0.0]quit
[R2-ospf-1]quit
[R2]rip 100 //创建RIP进程100
[R2-rip-100]version 2 //选择RIP版本为V2
[R2-rip-100]undo summary //关闭有类聚合
[R2-rip-100]network 192.168.1.0 //宣告192.168.1.0网段
[R2-rip-100]quit
[R2]ospf 1 //进入OSPF1进程
[R2-ospf-1]import-route rip 100//引入rip100进程
[R2-ospf-1]quit
[R2]rip 100 //进入RIP进程100
[R2-rip-100]import-route ospf 1//引入OSPF进程1
[R2-rip-100]quit
AR3
<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]undo info-center enable
Info: Information center is disabled.
[Huawei]sysname R3 //将系统命名为R3
[R3]interface GigabitEthernet 0/0/0 //进入G0/0/0并配置IP地址
[R3-GigabitEthernet0/0/0]ip address 192.168.1.254 24
[R3-GigabitEthernet0/0/0]quit
[R3]interface LoopBack 0//进入loopback0接口，并配置IP地址，设置掩码是32位
[R3-LoopBack0]ip address 3.3.3.3 32
[R3-LoopBack0]quit
[R3]rip 100 //创建RIP100进程
[R3-rip-100]version 2 //选择版本是V2
[R3-rip-100]undo summary //关闭路由有类聚合
[R3-rip-100]network 192.168.1.0 //宣告192.168.1.0网段
[R3-rip-100]network 3.0.0.0 //宣告3.0.0.0ip地址
[R3-rip-100]quit
[R3]我们观察下R1上面的路由表
[R1]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 11 Routes : 11
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 172.16.1.254 GigabitEthernet
0/0/0
3.3.3.3/32 O_ASE 150 1 D 172.16.1.254 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
172.16.1.0/24 Direct 0 0 D 172.16.1.1 GigabitEthernet
0/0/0
172.16.1.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
172.16.1.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
192.168.1.0/24 O_ASE 150 1 D 172.16.1.254 GigabitEthernet
0/0/0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0最后我们在R1上测试通断，结果说明实验室成功的。
[R1]ping 192.168.1.254
PING 192.168.1.254: 56 data bytes, press CTRL_C to break
Request time out
Reply from 192.168.1.254: bytes=56 Sequence=2 ttl=254 time=40 ms
Reply from 192.168.1.254: bytes=56 Sequence=3 ttl=254 time=30 ms
Reply from 192.168.1.254: bytes=56 Sequence=4 ttl=254 time=30 ms
Reply from 192.168.1.254: bytes=56 Sequence=5 ttl=254 time=30 ms
--- 192.168.1.254 ping statistics ---
5 packet(s) transmitted
4 packet(s) received
20.00% packet loss
round-trip min/avg/max = 30/32/40 ms
[R1]ping 3.3.3.3
PING 3.3.3.3: 56 data bytes, press CTRL_C to break
Reply from 3.3.3.3: bytes=56 Sequence=1 ttl=254 time=30 ms
Reply from 3.3.3.3: bytes=56 Sequence=2 ttl=254 time=30 ms
Reply from 3.3.3.3: bytes=56 Sequence=3 ttl=254 time=30 ms
Reply from 3.3.3.3: bytes=56 Sequence=4 ttl=254 time=30 ms
[R1]
