Re: IP unnumbered について

補足情報を以下に記載いたします。

正常時は各ルーティングテーブルで出口 IF が見えておりますが、
アンナンバード時は出口 IF の出力がなくなっております。

また、arp 解決も失敗しているように見受けられます。

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▼正常時
R7#show ip ro 150.1.9.9
Routing entry for 150.1.9.9/32
Known via "rip", distance 120, metric 1
Redistributing via rip
Last update from 155.1.79.9 on GigabitEthernet1/0.79, 00:00:06 ago
Routing Descriptor Blocks:
* 155.1.79.9, from 155.1.79.9, 00:00:06 ago, via GigabitEthernet1/0.79
Route metric is 1, traffic share count is 1

R7#show ip ro 155.1.9.9
Routing entry for 155.1.9.0/24
Known via "rip", distance 120, metric 1
Redistributing via rip
Last update from 155.1.79.9 on GigabitEthernet1/0.79, 00:00:06 ago
Routing Descriptor Blocks:
* 155.1.79.9, from 155.1.79.9, 00:00:06 ago, via GigabitEthernet1/0.79
Route metric is 1, traffic share count is 1


▼異常時(R9 アンナンバード設定時)
R7#show ip ro 150.1.9.9
Routing entry for 150.1.9.9/32
Known via "rip", distance 120, metric 1
Redistributing via rip
Last update from 150.1.9.9 00:00:14 ago
Routing Descriptor Blocks:
* 150.1.9.9, from 150.1.9.9, 00:00:14 ago
Route metric is 1, traffic share count is 1

R7#show ip ro 155.1.9.9
Routing entry for 155.1.9.0/24
Known via "rip", distance 120, metric 1
Redistributing via rip
Last update from 150.1.9.9 00:00:14 ago
Routing Descriptor Blocks:
* 150.1.9.9, from 150.1.9.9, 00:00:14 ago
Route metric is 1, traffic share count is 1

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----------------------------------------------------
▼正常時
R9#show ip ro 150.1.7.7
Routing entry for 150.1.7.7/32
Known via "rip", distance 120, metric 1
Redistributing via rip
Last update from 155.1.79.7 on GigabitEthernet1/0.79, 00:00:15 ago
Routing Descriptor Blocks:
* 155.1.79.7, from 155.1.79.7, 00:00:15 ago, via GigabitEthernet1/0.79
Route metric is 1, traffic share count is 1

R9#show ip ro 155.1.7.7
Routing entry for 155.1.7.0/24
Known via "rip", distance 120, metric 1
Redistributing via rip
Last update from 155.1.79.7 on GigabitEthernet1/0.79, 00:00:15 ago
Routing Descriptor Blocks:
* 155.1.79.7, from 155.1.79.7, 00:00:15 ago, via GigabitEthernet1/0.79
Route metric is 1, traffic share count is 1


▼異常時(R9 アンナンバード設定時)
R9#show ip ro 150.1.7.7
Routing entry for 150.1.7.7/32
Known via "rip", distance 120, metric 1
Redistributing via rip
Last update from 155.1.79.7 on GigabitEthernet1/0.79, 00:00:07 ago
Routing Descriptor Blocks:
* 155.1.79.7, from 155.1.79.7, 00:00:07 ago, via GigabitEthernet1/0.79
Route metric is 1, traffic share count is 1

R9#show ip ro 155.1.7.7
Routing entry for 155.1.7.0/24
Known via "rip", distance 120, metric 1
Redistributing via rip
Last update from 155.1.79.7 on GigabitEthernet1/0.79, 00:00:07 ago
Routing Descriptor Blocks:
* 155.1.79.7, from 155.1.79.7, 00:00:07 ago, via GigabitEthernet1/0.79
Route metric is 1, traffic share count is 1


----------------------------------------------------

----------------------------------------------------
▼正常時
R7#show ip cef 150.1.9.9
150.1.9.9/32
nexthop 155.1.79.9 GigabitEthernet1/0.79

R7#show ip cef 155.1.9.9
155.1.9.0/24
nexthop 155.1.79.9 GigabitEthernet1/0.79


▼異常時(R9 アンナンバード設定時)
R7#show ip cef 150.1.9.9
150.1.9.9/32
unresolved via 150.1.9.9
recursive-looped

R7#show ip cef 155.1.9.9
155.1.9.0/24
unresolved via 150.1.9.9

----------------------------------------------------
▼正常時
R9#show ip cef 150.1.7.7
150.1.7.7/32
nexthop 155.1.79.7 GigabitEthernet1/0.79

R9#show ip cef 155.1.7.7
155.1.7.0/24
nexthop 155.1.79.7 GigabitEthernet1/0.79


▼異常時(アンナンバード設定時)
R9#show ip cef 150.1.7.7
150.1.7.7/32
nexthop 155.1.79.7 GigabitEthernet1/0.79

R9#show ip cef 155.1.7.7
155.1.7.0/24
nexthop 155.1.79.7 GigabitEthernet1/0.79

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