问题描述

我在拓扑中的 R7 上遇到 LSA 类型 3 的问题，我有 4 个环回地址

Loopback1 is up, line protocol is up
Internet address is 192.168.100.1/28
Loopback2 is up, line protocol is up
Internet address is 192.168.100.17/28
Loopback3 is up, line protocol is up
Internet address is 192.168.100.33/28
Loopback4 is up, line protocol is up
Internet address is 192.168.100.49/29

我将所有这些链接上的 OSPF 网络类型更改为：网络类型 POINT_TO_POINT

在 R7 下：路由器 ospf 123，我有

network 192.168.100.0 0.0.0.255 area 44

在 r6 上我有命令

area 44 range 192.168.100.0 255.255.255.0 

R6的路由表

R6#show ip route | 我 168.100

   192.168.100.0/24 is variably subnetted, 5 subnets, 2 masks
   O       192.168.100.0/28 [110/11] via 192.168.1.129, 00:00:02, FastEthernet0/1
   O       192.168.100.0/24 is a summary, 00:00:02, Null0
   O       192.168.100.16/28 
   O       192.168.100.32/28 
   O       192.168.100.48/28

正如预期的那样，我可以看到 Null0 和从属路由的摘要 - 在这里一切正常。

但这里是 R5

   R5#show ip route | i 168.100
 192.168.100.0/24 is variably subnetted, 5 subnets, 2 masks
   O IA    192.168.100.0/28 [110/21] via 192.168.1.2, 00:01:50, FastEthernet0/1
   O IA    192.168.100.0/24 [110/21] via 192.168.1.2, 00:02:36, FastEthernet0/1
   O IA    192.168.100.16/28 [110/21] via 192.168.1.2, 00:01:40, FastEthernet0/1
   O IA    192.168.100.32/28 [110/21] via 192.168.1.2, 00:01:30, FastEthernet0/1
   O IA    192.168.100.48/28 [110/21] via 192.168.1.2, 00:01:20, FastEthernet0/1

这不是注定要发生的，我只是为了看到

   O IA    192.168.100.0/24 [110/21] via 192.168.1.2, 00:02:36, FastEthernet0/1

一直到 r1 都是一样的

R1#show ip route | i 168.100 
     192.168.100.0/24 is variably subnetted, 5 subnets, 2 masks
O IA    192.168.100.0/28 [110/61] via 10.1.1.2, 00:03:04, FastEthernet0/0
O IA    192.168.100.0/24 [110/61] via 10.1.1.2, 00:03:50, FastEthernet0/0
O IA    192.168.100.16/28 [110/61] via 10.1.1.2, 00:02:54, FastEthernet0/0
O IA    192.168.100.32/28 [110/61] via 10.1.1.2, 00:02:44, FastEthernet0/0
O IA    192.168.100.48/28 [110/61] via 10.1.1.2, 00:02:34, FastEthernet0/0

原因区域 0 是它所在的位置，我正在练习虚拟链接

如果您能解释为什么要宣传下属死记硬背，我将不胜感激

安迪