EIGRP - 邻居建立过程

网络工程 思科 路由 eigrp 数据包跟踪器
2022-02-13 13:50:57

拓扑

每个路由器都使用 EIGRP 实现,共享其路由。

作品:

ISP,R1,R2,R4

问题:

R3 无法与 R1 建立邻居关系,其路由无法共享。

我对其他路由器所做的相同过程。

R3 -

R3#ping 10.0.0.13

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.13, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 1/8/22 ms

R3#sh ip protocols    
 Routing Protocol is "eigrp  1 " 
      Outgoing update filter list for all interfaces is not set 
      Incoming update filter list for all interfaces is not set 
      Default networks flagged in outgoing updates  
      Default networks accepted from incoming updates 
      EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
      EIGRP maximum hopcount 100
      EIGRP maximum metric variance 1
    Redistributing: eigrp 1
      Automatic network summarization is not in effect  
      Maximum path: 4
      Routing for Networks:  
         10.0.0.12/30
      Routing Information Sources:  
        Gateway         Distance      Last Update 
      Distance: internal 90 external 170    


R3#sh ip eigrp neighbors 
    IP-EIGRP neighbors for process 1

R1 -

R1#ping 10.0.0.14

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.0.0.14, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 19/29/49 ms

R1#sh ip protocols

Routing Protocol is "eigrp  1 " 
  Outgoing update filter list for all interfaces is not set 
  Incoming update filter list for all interfaces is not set 
  Default networks flagged in outgoing updates  
  Default networks accepted from incoming updates 
  EIGRP metric weight K1=1, K2=0, K3=1, K4=0, K5=0
  EIGRP maximum hopcount 100
  EIGRP maximum metric variance 1
Redistributing: eigrp 1
  Automatic network summarization is not in effect  
  Maximum path: 4
  Routing for Networks:  
     10.0.0.4/30
     10.0.0.0/30
     10.0.0.8/30
     1.0.0.12/30
  Routing Information Sources:  
    Gateway         Distance      Last Update 
    10.0.0.6        90            6397       
    10.0.0.10       90            8936       
    10.0.0.2        90            9818       
  Distance: internal 90 external 170

R1#sh ip eigrp neighbors 
IP-EIGRP neighbors for process 1
H   Address         Interface      Hold Uptime    SRTT   RTO   Q   Seq
                                   (sec)          (ms)        Cnt  Num
0   10.0.0.6        Se0/0/1        10   00:16:28  40     1000  0   5
1   10.0.0.10       Se0/1/1        10   00:16:26  40     1000  0   5
2   10.0.0.2        Se0/0/0        12   00:16:25  40     1000  0   5

我禁用auto-summary了它的想法,但事实并非如此。有什么建议么?

1个回答

查看 R1 和 R3 的 EIGRP 配置会很有帮助,这些配置可以显示show run | section router eigrp 1或仅show run复制“路由器 eigrp 1”中的部分。

话虽如此,我看起来您输入了错误的网络语句。在 R1 上,您可以看到:

Routing for Networks:  
  10.0.0.4/30
  10.0.0.0/30
  10.0.0.8/30
  1.0.0.12/30

应该是 10.0.0.12/30 而不是 1.0.0.12/30。

在路由器 eigrp 1 下的 R1 上,您应该输入network 10.0.0.12 0.0.0.3和删除任何其他网络语句。

删除任何其他网络语句的原因是因为除了串行链路之外我看不到任何其他直接连接的网络,并且您没有提到任何环回等。“network xxxx yyyy”语句告诉 EIGRP 它应该在哪些接口上启用 EIGRP并宣传该网络。