路由重分发中尽然忘记了这件事
路由重分发中尽然忘记了这件事
- 前言
- 一、题目
- 二、需求
- 三、命令
- 1、R1
- 2、R2
- 3、R3
- 4、R4
- 5、R5
- 6、R6
- 四、问题出现
- 1、R3
- 2、R4
- 3、R5
- 4、R6
- 五、问题
- 六、回想原理
- 七、问题解决
- 1、赶紧加上
- 2、加上之后
- 总结
前言
老样子,复习下路由重分发,然后一如既往的发现了自己出错了,为了告知同样出错的小伙伴,所以特地写下来。
一、题目
二、需求
全网互通
三、命令
1、R1
<Huawei>u t m
Info: Current terminal monitor is off.
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 192.168.10.1 24
[Huawei-GigabitEthernet0/0/0]int loop 0
[Huawei-LoopBack0]ip add 1.1.1.1 32
[Huawei-LoopBack0]q
[Huawei]ip route-static 0.0.0.0 0 192.168.10.2
2、R2
<Huawei>u t m
Info: Current terminal monitor is off.
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 192.168.10.2 24
[Huawei-GigabitEthernet0/0/0]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip add 192.168.20.2 24
[Huawei-GigabitEthernet0/0/1]int loop 0
[Huawei-LoopBack0]ip add 2.2.2.2 32
[Huawei-LoopBack0]q
[Huawei]ospf 1
[Huawei-ospf-1]area 1
[Huawei-ospf-1-area-0.0.0.1]net 192.168.20.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.1]net 2.2.2.2 0.0.0.0
[Huawei-ospf-1-area-0.0.0.1]q
[Huawei-ospf-1]import-route static
[Huawei-ospf-1]import-route direct
[Huawei-ospf-1]q
[Huawei]ip route-static 1.1.1.1 32 192.168.10.1
3、R3
<Huawei>u t m
Info: Current terminal monitor is off.
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip add 192.168.20.3 24
[Huawei-GigabitEthernet0/0/1]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 192.168.30.3 24
[Huawei-GigabitEthernet0/0/0]int g0/0/2
[Huawei-GigabitEthernet0/0/2]ip add 192.168.40.3 24
[Huawei-GigabitEthernet0/0/2]int loop 0
[Huawei-LoopBack0]ip add 3.3.3.3 32
[Huawei-LoopBack0]q
[Huawei]ospf 1
[Huawei-ospf-1]area 0
[Huawei-ospf-1-area-0.0.0.0]net 192.168.30.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]net 3.3.3.3 0.0.0.0
[Huawei-ospf-1-area-0.0.0.0]q
[Huawei-ospf-1]area 1
[Huawei-ospf-1-area-0.0.0.1]net 192.168.20.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.1]q
[Huawei-ospf-1]default-route-advertise always
[Huawei-ospf-1]import-route direct
[Huawei-ospf-1]ip route-static 0.0.0.0 0 192.168.40.5
4、R4
<Huawei>u t m
Info: Current terminal monitor is off.
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 192.168.30.4 24
[Huawei-GigabitEthernet0/0/0]int g0/0/1
[Huawei-GigabitEthernet0/0/1]ip add 192.168.50.4 24
[Huawei-GigabitEthernet0/0/1]int loop 0
[Huawei-LoopBack0]ip add 4.4.4.4 32
[Huawei-LoopBack0]q
[Huawei]ospf 1
[Huawei-ospf-1]area 0
[Huawei-ospf-1-area-0.0.0.0]net 192.168.30.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]net 4.4.4.4 0.0.0.0
[Huawei-ospf-1-area-0.0.0.0]q
[Huawei-ospf-1]q
[Huawei]rip 1
[Huawei-rip-1]v 2
[Huawei-rip-1]undo sum
[Huawei-rip-1]net 192.168.50.0
[Huawei-rip-1]net 4.0.0.0
[Huawei-rip-1]import-route ospf 1 cost 3
[Huawei-rip-1]q
[Huawei]ospf 1
[Huawei-ospf-1]import-route rip 1 type 1 cost 1
[Huawei-ospf-1]import-route direct
5、R5
<Huawei>u t m
Info: Current terminal monitor is off.
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 192.168.40.5 24
[Huawei-GigabitEthernet0/0/0]int loop 0
[Huawei-LoopBack0]ip add 5.5.5.5 32
[Huawei-LoopBack0]q
[Huawei]ip route-static 0.0.0.0 0 192.168.40.3
6、R6
<Huawei>u t m
Info: Current terminal monitor is off.
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip add 192.168.50.6 24
[Huawei-GigabitEthernet0/0/0]int loop 0
[Huawei-LoopBack0]ip add 6.6.6.6 32
[Huawei-LoopBack0]q
[Huawei]rip 1
[Huawei-rip-1]v 2
[Huawei-rip-1]undo sum
[Huawei-rip-1]net 192.168.50.0
[Huawei-rip-1]net 6.0.0.0
四、问题出现
这时候,我看了下每个路由表的情况,发现了下面的问题
1、R3
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 21 Routes : 21 Destination/Mask Proto Pre Cost Flags NextHop Interface0.0.0.0/0 Static 60 0 RD 192.168.40.5 GigabitEthernet
0/0/21.1.1.1/32 O_ASE 150 1 D 192.168.20.2 GigabitEthernet
0/0/12.2.2.2/32 OSPF 10 1 D 192.168.20.2 GigabitEthernet
0/0/13.3.3.3/32 Direct 0 0 D 127.0.0.1 LoopBack04.4.4.4/32 OSPF 10 1 D 192.168.30.4 GigabitEthernet
0/0/06.6.6.6/32 O_ASE 150 2 D 192.168.30.4 GigabitEthernet
0/0/0127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0192.168.10.0/24 O_ASE 150 1 D 192.168.20.2 GigabitEthernet
0/0/1192.168.20.0/24 Direct 0 0 D 192.168.20.3 GigabitEthernet
0/0/1192.168.20.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1192.168.20.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1192.168.30.0/24 Direct 0 0 D 192.168.30.3 GigabitEthernet
0/0/0192.168.30.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0192.168.30.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0192.168.40.0/24 Direct 0 0 D 192.168.40.3 GigabitEthernet
0/0/2192.168.40.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/2192.168.40.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/2192.168.50.0/24 O_ASE 150 1 D 192.168.30.4 GigabitEthernet
0/0/0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
2、R4
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 19 Routes : 19 Destination/Mask Proto Pre Cost Flags NextHop Interface0.0.0.0/0 O_ASE 150 1 D 192.168.30.3 GigabitEthernet
0/0/01.1.1.1/32 O_ASE 150 1 D 192.168.30.3 GigabitEthernet
0/0/02.2.2.2/32 OSPF 10 2 D 192.168.30.3 GigabitEthernet
0/0/03.3.3.3/32 OSPF 10 1 D 192.168.30.3 GigabitEthernet
0/0/04.4.4.4/32 Direct 0 0 D 127.0.0.1 LoopBack06.6.6.6/32 RIP 100 1 D 192.168.50.6 GigabitEthernet
0/0/1127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0192.168.10.0/24 O_ASE 150 1 D 192.168.30.3 GigabitEthernet
0/0/0192.168.20.0/24 OSPF 10 2 D 192.168.30.3 GigabitEthernet
0/0/0192.168.30.0/24 Direct 0 0 D 192.168.30.4 GigabitEthernet
0/0/0192.168.30.4/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0192.168.30.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0192.168.40.0/24 O_ASE 150 1 D 192.168.30.3 GigabitEthernet
0/0/0192.168.50.0/24 Direct 0 0 D 192.168.50.4 GigabitEthernet
0/0/1192.168.50.4/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1192.168.50.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
3、R5
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 9 Routes : 9 Destination/Mask Proto Pre Cost Flags NextHop Interface0.0.0.0/0 Static 60 0 RD 192.168.40.3 GigabitEthernet
0/0/05.5.5.5/32 Direct 0 0 D 127.0.0.1 LoopBack0127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0192.168.40.0/24 Direct 0 0 D 192.168.40.5 GigabitEthernet
0/0/0192.168.40.5/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0192.168.40.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
4、R6
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 16 Routes : 16 Destination/Mask Proto Pre Cost Flags NextHop Interface1.1.1.1/32 RIP 100 4 D 192.168.50.4 GigabitEthernet
0/0/02.2.2.2/32 RIP 100 4 D 192.168.50.4 GigabitEthernet
0/0/03.3.3.3/32 RIP 100 4 D 192.168.50.4 GigabitEthernet
0/0/04.4.4.4/32 RIP 100 1 D 192.168.50.4 GigabitEthernet
0/0/06.6.6.6/32 Direct 0 0 D 127.0.0.1 LoopBack0127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0192.168.10.0/24 RIP 100 4 D 192.168.50.4 GigabitEthernet
0/0/0192.168.20.0/24 RIP 100 4 D 192.168.50.4 GigabitEthernet
0/0/0192.168.30.0/24 RIP 100 4 D 192.168.50.4 GigabitEthernet
0/0/0192.168.40.0/24 RIP 100 4 D 192.168.50.4 GigabitEthernet
0/0/0192.168.50.0/24 Direct 0 0 D 192.168.50.6 GigabitEthernet
0/0/0192.168.50.6/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0192.168.50.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
五、问题
R6的路由表中没有R5,但是R3和R4的路由表中都包含了R5和R6的路由,那为什么R6学不到R5的这条默认路由呢?
六、回想原理
- R3和R5互作默认路由,然后R3在OSPF里面下发默认路由。
- R4是有一个接口属于OSPF,它学到这默认路由之后,在Rip里注入OSPF,然后把他在rip里面再去下发这条默认路由。
- 然后R6就能在同为Rip 的R4上学到这条下发的默认路由
七、问题解决
原来是没有在R4的Rip里写下发默认路由的命令,怪不得R6学不到这条默认路由
1、赶紧加上
R4
[Huawei-rip-1]default-route originate
2、加上之后
加上之后,我们来看下R6的路由表
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 17 Routes : 17 Destination/Mask Proto Pre Cost Flags NextHop Interface0.0.0.0/0 RIP 100 1 D 192.168.50.4 GigabitEthernet
0/0/01.1.1.1/32 RIP 100 15 D 192.168.50.4 GigabitEthernet
0/0/02.2.2.2/32 RIP 100 15 D 192.168.50.4 GigabitEthernet
0/0/03.3.3.3/32 RIP 100 15 D 192.168.50.4 GigabitEthernet
0/0/04.4.4.4/32 RIP 100 1 D 192.168.50.4 GigabitEthernet
0/0/06.6.6.6/32 Direct 0 0 D 127.0.0.1 LoopBack0127.0.0.0/8 Direct 0 0 D 127.0.0.1 InLoopBack0127.0.0.1/32 Direct 0 0 D 127.0.0.1 InLoopBack0
127.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0192.168.10.0/24 RIP 100 15 D 192.168.50.4 GigabitEthernet
0/0/0192.168.20.0/24 RIP 100 15 D 192.168.50.4 GigabitEthernet
0/0/0192.168.30.0/24 RIP 100 15 D 192.168.50.4 GigabitEthernet
0/0/0192.168.40.0/24 RIP 100 15 D 192.168.50.4 GigabitEthernet
0/0/0192.168.50.0/24 Direct 0 0 D 192.168.50.6 GigabitEthernet
0/0/0192.168.50.6/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0192.168.50.255/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
255.255.255.255/32 Direct 0 0 D 127.0.0.1 InLoopBack0
总结
果然,有时候,原理在脑袋里转的没什么问题,但做出来的时候,有时候就会忘记一两个,导致需求达不到,所以,做实验还是得按规则来做,比如,先把所以的基础命令配置好,再全部配置某个高级命令,接着再全部配另一个高级命令等,有条理的做,不仅方便查问题,也方便别人看出你的问题所在。
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