繋がらないOSPF
まずはネットワーク図
全てエリア0.0.0.0（バックボーン）
外部に行く場合はR1でNAT
問題点
- R1から.45.5(R5)に向けてpingしてると約600秒毎に繋がったり繋がらなくなったりを繰り返す
ping -R結果（1時間分）
router1:$ ping 172.20.45.5 -R
PING 172.20.45.5 (172.20.45.5) 56(124) bytes of data.
64 bytes from 172.20.45.5: icmp_seq=1 ttl=62 time=0.661 ms
RR: 172.20.12.1
172.20.24.2
172.20.45.4
172.20.45.5
172.20.45.5
172.20.24.4
172.20.12.2
172.20.12.1
64 bytes from 172.20.45.5: icmp_seq=2 ttl=62 time=0.630 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=3 ttl=62 time=0.607 ms (same route)
...
64 bytes from 172.20.45.5: icmp_seq=342 ttl=62 time=0.588 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=343 ttl=63 time=0.641 ms
RR: 172.20.12.1
172.20.24.2
172.20.45.4
172.20.45.5
172.20.45.5
172.20.13.3
172.20.12.1
64 bytes from 172.20.45.5: icmp_seq=344 ttl=63 time=0.553 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=345 ttl=63 time=0.548 ms (same route)
...
64 bytes from 172.20.45.5: icmp_seq=419 ttl=63 time=0.538 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=420 ttl=63 time=0.575 ms (same route)
(不通464秒)
64 bytes from 172.20.45.5: icmp_seq=884 ttl=63 time=0.417 ms
RR: 172.20.13.1
172.20.35.3
172.20.45.5
172.20.45.5
172.20.13.3
172.20.13.1
64 bytes from 172.20.45.5: icmp_seq=885 ttl=63 time=0.517 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=886 ttl=63 time=0.418 ms (same route)
...
64 bytes from 172.20.45.5: icmp_seq=1020 ttl=63 time=0.384 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=1021 ttl=62 time=7.07 ms
RR: 172.20.12.1
172.20.24.2
172.20.45.4
172.20.45.5
172.20.45.5
172.20.24.4
172.20.12.2
172.20.12.1
64 bytes from 172.20.45.5: icmp_seq=1022 ttl=62 time=0.621 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=1023 ttl=62 time=0.751 ms (same route)
...
64 bytes from 172.20.45.5: icmp_seq=1541 ttl=62 time=0.645 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=1542 ttl=62 time=0.691 ms (same route)
(不通539秒)
64 bytes from 172.20.45.5: icmp_seq=2083 ttl=63 time=0.501 ms
RR: 172.20.12.1
172.20.24.2
172.20.45.4
172.20.45.5
172.20.45.5
172.20.13.3
172.20.12.1
64 bytes from 172.20.45.5: icmp_seq=2084 ttl=63 time=0.496 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=2085 ttl=63 time=0.534 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=2086 ttl=63 time=0.466 ms (same route)
...
64 bytes from 172.20.45.5: icmp_seq=2142 ttl=62 time=4.41 ms
RR: 172.20.12.1
172.20.24.2
172.20.45.4
172.20.45.5
172.20.45.5
172.20.24.4
172.20.12.2
172.20.12.1
64 bytes from 172.20.45.5: icmp_seq=2143 ttl=62 time=0.588 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=2144 ttl=62 time=0.534 ms (same route)
...
64 bytes from 172.20.45.5: icmp_seq=2740 ttl=62 time=0.753 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=2741 ttl=62 time=0.699 ms (same route)
(不通542秒)
64 bytes from 172.20.45.5: icmp_seq=3283 ttl=63 time=0.464 ms
RR: 172.20.13.1
172.20.35.3
172.20.45.5
172.20.45.5
172.20.13.3
172.20.13.1
64 bytes from 172.20.45.5: icmp_seq=3284 ttl=63 time=0.487 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=3285 ttl=63 time=0.560 ms (same route)
...
64 bytes from 172.20.45.5: icmp_seq=3420 ttl=62 time=4.96 ms
RR: 172.20.12.1
172.20.24.2
172.20.45.4
172.20.45.5
172.20.45.5
172.20.24.4
172.20.12.2
172.20.12.1
64 bytes from 172.20.45.5: icmp_seq=3421 ttl=62 time=0.631 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=3422 ttl=62 time=0.732 ms (same route)
...
64 bytes from 172.20.45.5: icmp_seq=3599 ttl=62 time=0.638 ms (same route)
64 bytes from 172.20.45.5: icmp_seq=3600 ttl=62 time=0.676 ms (same route)どこをどう間違ってるんだ…
勉強が足りないいい
