[ninux-roma] Problemi sulla rete
Claudio Pisa
clauz at ninux.org
Thu May 19 15:10:10 CEST 2016
Mi sembra strano che messaggi duplicati, con lo stesso sequence number,
come quelli qui sotto (0x9891, 0x97f1, ...), non vengano scartati dal
primo hop.
@Matteo: Il Vtime dell'HNA di default mi risulta 300s invece e' settato
a 124s. L'hai modificato tu? E a quanto e' settato il tuo HnaInterval?
Clauz
On 05/19/2016 02:55 PM, nino wrote:
> Ciao a tutti,
> ho passato 5 ore a debbuggare il problema che si e' presentato ieri,
> rendendo anche la mia LAN di casa inutilizzabile...
> Finalmente dovrei aver individuato ed isolato il problema.
> I pacchetti OLSR che girano ovunque in rete portavano appresso dei
> messaggi HNA duplicati con l'originator 172.16.46.1.
> Il nodo che origina tale messaggio e' quello di Matteo ad Alberata. Mi
> dispiace per Matteo, ma per il momento sono stato costretto ad isolarlo
> mettendo un filtro sul traffico UDP con sorgente 172.16.46.1 sul router
> "a terra" del Fusolab.
> Forse c'e' un metodo per inibire la duplicazione, ma per ora non l'ho
> trovato.
> Sembra che ci fosse tanto tempo fa un bug di OLSR che produceva un
> problema affine:
> https://lists.olsr.org/pipermail/olsr-users/2010-September/004148.html
> Matteo aggiorna il tuo OLSR e cerca di capire perche' invii in rete
> messaggi duplicati...
> Ciao
> Nino
>
>
> Riporto un dump un dump di parte del pacchetto OLSR incriminato....
>
> HNA Message (0x04), originator 172.16.46.1, ttl 105, hop 150
> vtime 124.000s, msg-seq 0x1a38, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 16, hop 239
> vtime 124.000s, msg-seq 0x9891, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 57, hop 198
> vtime 124.000s, msg-seq 0xf50b, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 101, hop 154
> vtime 124.000s, msg-seq 0x19f8, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 113, hop 142
> vtime 124.000s, msg-seq 0x1a38, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 25, hop 230
> vtime 124.000s, msg-seq 0x9891, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 62, hop 193
> vtime 124.000s, msg-seq 0xf50b, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 111, hop 144
> vtime 124.000s, msg-seq 0x1a38, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 3, hop 252
> vtime 124.000s, msg-seq 0x97f1, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 152, hop 103
> vtime 124.000s, msg-seq 0x995b, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 109, hop 146
> vtime 124.000s, msg-seq 0xf50b, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 129, hop 126
> vtime 124.000s, msg-seq 0x1a38, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 5, hop 250
> vtime 124.000s, msg-seq 0x97b9, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 32, hop 223
> vtime 124.000s, msg-seq 0x97f1, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 114, hop 141
> vtime 124.000s, msg-seq 0xf50b, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 134, hop 121
> vtime 124.000s, msg-seq 0x1a16, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 20, hop 235
> vtime 124.000s, msg-seq 0x9891, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
> HNA Message (0x04), originator 172.16.46.1, ttl 62, hop 193
> vtime 124.000s, msg-seq 0xf50b, length 52
> Advertised networks (total 1)
> 10.46.3.0/24, 10.46.2.0/24, 10.46.1.0/24, 10.46.0.0/24
> 176.62.53.228/32
>
>
>
> On 05/19/2016 10:26 AM, Nemesis wrote:
>> Ci sono problemi sulla rete, qualcuno รจ riuscito a capire di cosa si tratta?
>>
>> Nemesis
>> _______________________________________________
>> Roma mailing list
>> Roma at ml.ninux.org
>> http://ml.ninux.org/mailman/listinfo/roma
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