rip 版本1不连续子网的处理

最新推荐文章于 2024-06-16 21:28:53 发布

lotusr5

最新推荐文章于 2024-06-16 21:28:53 发布

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分类专栏： rip 文章标签： database mobile n2 c

本文链接：https://blog.youkuaiyun.com/lotusr5/article/details/1336361

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本文通过路由器配置展示了RIP版本1中处理不连续子网的方法，包括路由表的变化和ping测试，揭示了secondary地址在解决这个问题中的作用。

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之前：show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

C    192.168.10.0/24 is directly connected, Serial1/0
C    192.168.20.0/24 is directly connected, Serial1/1
R    10.0.0.0/8 [120/1] via 192.168.10.1, 00:00:10, Serial1/0
                [120/1] via 192.168.20.1, 00:00:11, Serial1/1 R4#ping 10.1.1.1

产生这样结果的原因是自动汇总（不可关闭）

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds:
!U!.!
Success rate is 60 percent (3/5), round-trip min/avg/max = 36/46/64 ms
R4#ping 10.2.2.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.2.2.1, timeout is 2 seconds:
!U!.!
Success rate is 60 percent (3/5), round-trip min/avg/max = 24/40/68 ms

show ip rip database
10.0.0.0/8    auto-summary
10.0.0.0/8
    [1] via 192.168.20.1, 00:00:06, Serial1/1
    [1] via 192.168.10.1, 00:00:05, Serial1/0
192.168.10.0/24    auto-summary
192.168.10.0/24    directly connected, Serial1/0
192.168.20.0/24    auto-summary
192.168.20.0/24    directly connected, Serial1/1

配secondary地址之后：show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

C    192.168.10.0/24 is directly connected, Serial1/0
C    192.168.20.0/24 is directly connected, Serial1/1
     10.0.0.0/8 is variably subnetted, 6 subnets, 2 masks
R       10.2.2.0/24 [120/1] via 10.4.4.1, 00:00:01, Serial1/1
C       10.4.4.0/24 is directly connected, Serial1/1
R       10.1.1.0/24 [120/1] via 10.3.3.1, 00:00:28, Serial1/0
R       10.0.0.0/24 [120/1] via 192.168.10.1, 00:00:28, Serial1/0
                    [120/1] via 192.168.20.1, 00:00:01, Serial1/1
C       10.3.3.0/24 is directly connected, Serial1/0
R       10.0.0.0/8 [120/1] via 192.168.10.1, 00:01:23, Serial1/0
                   [120/1] via 192.168.20.1, 00:01:24, Serial1/1
R4#ping 10.1.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.1.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/84/156 ms
R4#ping 10.2.2.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 10.2.2.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 64/88/116 ms

show ip rip database
10.0.0.0/8    auto-summary
10.0.0.0/24
    [1] via 192.168.20.1, 00:00:13, Serial1/1
    [1] via 192.168.10.1, 00:00:03, Serial1/0
10.1.1.0/24
    [1] via 10.3.3.1, 00:00:03, Serial1/0
10.2.2.0/24
    [1] via 10.4.4.1, 00:00:13, Serial1/1
192.168.10.0/24    auto-summary
192.168.10.0/24    directly connected, Serial1/0
192.168.20.0/24    auto-summary
192.168.20.0/24    directly connected, Serial1/1

另一个实验：

R2#show ip route
Codes: C - connected, S - static, I - IGRP, R - RIP, M - mobile, B - BGP
       D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
       N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
       E1 - OSPF external type 1, E2 - OSPF external type 2, E - EGP
       i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
       ia - IS-IS inter area, * - candidate default, U - per-user static route
       o - ODR, P - periodic downloaded static route

Gateway of last resort is not set

     23.0.0.0/24 is subnetted, 1 subnets
C       23.1.1.0 is directly connected, Serial1/1
     12.0.0.0/24 is subnetted, 1 subnets
C       12.1.1.0 is directly connected, Serial1/0
R    192.168.1.0/24 [120/1] via 12.1.1.1, 00:00:24, Serial1/0
R    192.168.2.0/24 [120/1] via 23.1.1.3, 00:00:16, Serial1/1

R2#show ip rip da
R2#show ip rip database
12.0.0.0/8    auto-summary
12.1.1.0/24    directly connected, Serial1/0
23.0.0.0/8    auto-summary
23.1.1.0/24    directly connected, Serial1/1
192.168.1.0/24    auto-summary
192.168.1.0/24
    [1] via 12.1.1.1, 00:00:06, Serial1/0
192.168.2.0/24    auto-summary
192.168.2.0/24
    [1] via 23.1.1.3, 00:00:25, Serial1/1

R2#ping 192.168.1.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.1.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 4/44/80 ms
R2#ping 192.168.2.1

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 192.168.2.1, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 16/48/64 ms