Cadute di linea, la colpa e di...?

[Jimmy1987]

Ciao ragazzi,
Ho un contratto alice business, ma sto utilizzando un router D-Link (dsl-2640B) xke al tempo della stipula del contratto mi avevano formito un pirellone da alice adsl customer (gia, quello antico rosso e nero x l'alice di tt i giorni ._.) dicendomi che erano senza router disponibili (...) e che mi avebbero spedito un ruouter al + presto (come no...)
Utilizzando un router nn loro perderei l'ip statico (nn che mi pesi, anzi...) ma in ogni caso ho configurato l'accesso con le info postate qui e ho il mio bel ip statico in ogni caso...

Fatta questa lunga premessa, torniamo al punto cruciale:

Ultimamente la linea cadeva due volte, a intervalli di 40 e 10 minuti, ergo, dopo 40 minuti di connessione, cadeva, e dopo altri 10 minuti cadeva ancora, parlando con un tecnico telecom che mi seguiva via telefono mentre faceva i test al server + vicino mi ha confermato che la linea cadeva FISICAMENTE, c'erano quindi problemi di portante, e mi ha assegnato una nuova porta.

Tutto speranzoso ho solo potuto constatare che la linea cade cmq... (ho lasciato il pc accesso tt notte e giorno con irc aperto e ho verificato almeno 4 disconnessioni in 24 ore circa)
Ora, risentito il tecnico, mi ha suggerito di verificare che nn sia un problema di router...

Ma come posso verificare che il segnale cada a causa del ROUTER (e che quindi non sia a causa di una caduta della portate?)

[matmat]

prova un altro router... chiedilo ad un amico...
anche a me succedeva, ed era proprio con un d-link, era un semplice modem, una volta cambiato non è caduto più nulla.

[Jimmy1987]

spet, sono riuscito a beccare qualcosa dai log del router


dnsprobe[599]: dns query failed
Apr 11 03:04:39 user warn dnsprobe[599]: dns query failed
Apr 11 03:04:41 user warn dnsprobe[599]: dns query failed
Apr 11 03:04:41 user notice dnsprobe[599]: Primary DNS server Is Down... Switching To Secondary DNS server
Apr 11 03:04:46 user crit kernel: ADSL link down
Apr 11 03:04:47 daemon crit pppd[476]: Clear IP addresses. Connection DOWN.
Apr 11 03:04:47 daemon crit pppd[476]: Clear IP addresses. PPP connection DOWN.
Apr 11 03:04:48 user crit kernel: xDSL G.994 training
Apr 11 03:04:50 user crit kernel: ADSL G.992 started
Apr 11 03:04:52 user crit kernel: ADSL G.992 channel analysis
Apr 11 03:04:57 user crit kernel: ADSL link up, interleaved, us=704, ds=5856
Apr 11 03:04:58 user debug syslog: iptables -t nat -A PREROUTING -i br0 -d 192.168.1.1 -p udp --dport 53 -j DNAT --to 128.9.0.107
Apr 11 03:04:59 daemon notice pppd[476]: PPP: Start to connect ...
Apr 11 03:04:59 daemon crit pppd[476]: PPP server detected.
Apr 11 03:04:59 daemon crit pppd[476]: PPP session established.




Apr 11 03:20:11 syslog info -- MARK --
Apr 11 03:29:06 user warn dnsprobe[599]: dns query failed
Apr 11 03:29:08 user warn dnsprobe[599]: dns query failed
Apr 11 03:29:10 user warn dnsprobe[599]: dns query failed
Apr 11 03:29:10 user notice dnsprobe[599]: Primary DNS server Is Down... Switching To Secondary DNS server
Apr 11 03:29:11 user crit kernel: ADSL link down
Apr 11 03:29:13 user crit kernel: xDSL G.994 training
Apr 11 03:29:13 daemon crit pppd[476]: Clear IP addresses. Connection DOWN.
Apr 11 03:29:13 daemon crit pppd[476]: Clear IP addresses. PPP connection DOWN.
Apr 11 03:29:16 user crit kernel: ADSL G.992 started
Apr 11 03:29:18 user crit kernel: ADSL G.992 channel analysis
Apr 11 03:29:22 user crit kernel: ADSL link up, interleaved, us=640, ds=5856
Apr 11 03:29:23 user debug syslog: iptables -t nat -A PREROUTING -i br0 -d 192.168.1.1 -p udp --dport 53 -j DNAT --to 128.9.0.107
Apr 11 03:29:24 daemon notice pppd[476]: PPP: Start to connect ...
Apr 11 03:29:24 daemon crit pppd[476]: PPP server detected.
Apr 11 03:29:24 daemon crit pppd[476]: PPP session established.
Apr 11 03:29:24 daemon crit pppd[476]: PPP LCP UP.
Apr 11 03:29:24 daemon crit pppd[476]: Received valid IP address from server. Connection UP.
Apr 11 03:29:29 user debug syslog: cat /var/fyi/sys/gateway >> /dev/null


in pratica perde i server Dns???


Altro log interessante:

Apr 11 08:48:51 user notice dnsprobe[599]: Switching Back To Primary DNS server
Apr 11 09:01:29 user crit kernel: eth0 Link DOWN.
Apr 11 09:01:29 user info kernel: br0: port 1(eth0) entering disabled state
Apr 11 09:01:29 user info kernel: br0: port 1(eth0) entering disabled state
Apr 11 09:01:48 user crit kernel: eth0 Link UP.
Apr 11 09:01:48 user info kernel: br0: port 1(eth0) entering learning state
Apr 11 09:01:48 user info kernel: br0: topology change detected, propagating
Apr 11 09:01:48 user info kernel: br0: port 1(eth0) entering forwarding state
Apr 11 09:18:21 user warn dnsprobe[599]: dns query failed
Apr 11 09:18:23 user warn dnsprobe[599]: dns query failed
Apr 11 09:18:25 user warn dnsprobe[599]: dns query failed
Apr 11 09:18:25 user notice dnsprobe[599]: Primary DNS server Is Down... Switching To Secondary DNS server
Apr 11 09:18:30 user crit kernel: ADSL link down
Apr 11 09:18:31 user crit kernel: xDSL G.994 training
Apr 11 09:18:33 daemon crit pppd[476]: Clear IP addresses. Connection DOWN.
Apr 11 09:18:33 daemon crit pppd[476]: Clear IP addresses. PPP connection DOWN.
Apr 11 09:18:34 user crit kernel: ADSL G.992 started
Apr 11 09:18:36 user crit kernel: ADSL G.992 channel analysis
Apr 11 09:18:41 user crit kernel: ADSL link up, interleaved, us=640, ds=5888
Apr 11 09:18:42 user debug syslog: iptables -t nat -A PREROUTING -i br0 -d 192.168.1.1 -p udp --dport 53 -j DNAT --to 128.9.0.107
Apr 11 09:18:43 daemon notice pppd[476]: PPP: Start to connect ...
Apr 11 09:18:43 daemon crit pppd[476]: PPP server detected.
Apr 11 09:18:43 daemon crit pppd[476]: PPP session established.
Apr 11 09:18:43 daemon crit pppd[476]: PPP LCP UP.
Apr 11 09:18:44 daemon crit pppd[476]: Received valid IP address from server. Connection UP



la parte in grassetto... qualcuno sa che significa?



Apr 11 09:39:47 user notice dnsprobe[599]: Switching Back To Primary DNS server
Apr 11 09:39:47 user debug syslog: iptables -D FORWARD -p ALL -j TOD
Apr 11 09:39:48 user debug syslog: iptables -F TOD
Apr 11 09:39:48 user debug syslog: ebtables -F INPUT
Apr 11 09:39:48 user debug syslog: iptables -A TOD -j ACCEPT
Apr 11 09:39:48 user debug syslog: iptables -A FORWARD -p ALL -j TOD
Apr 11 09:58:39 user crit kernel: ADSL link down
Apr 11 09:58:40 daemon crit pppd[476]: Clear IP addresses. Connection DOWN.
Apr 11 09:58:40 daemon crit pppd[476]: Clear IP addresses. PPP connection DOWN.
Apr 11 09:58:41 user crit kernel: xDSL G.994 training
Apr 11 09:58:43 user crit kernel: ADSL G.992 started
Apr 11 09:58:45 user crit kernel: ADSL G.992 channel analysis
Apr 11 09:58:50 user crit kernel: ADSL link up, interleaved, us=640, ds=5888
Apr 11 09:58:51 user debug syslog: iptables -t nat -A PREROUTING -i br0 -d 192.168.1.1 -p udp --dport 53 -j DNAT --to 128.9.0.107
Apr 11 09:58:51 mail warn nbSMTP[1625]: Cannot add more mails to queue anymore. Reached limit 35840
Apr 11 09:58:51 daemon notice pppd[476]: PPP: Start to connect ...
Apr 11 09:58:52 daemon crit pppd[476]: PPP server detected.
Apr 11 09:58:52 daemon crit pppd[476]: PPP session established.
Apr 11 09:58:52 daemon crit pppd[476]: PPP LCP UP.
Apr 11 09:58:52 daemon crit pppd[476]: Received valid IP address from server. Connection UP.

[nMOS]

ciao Jimmy, avevi per caso risolto il problema del "dns query failed" ?