Ciao a tutti,
Vorrei chiedere alla lista un consiglio. Gestisco una piccola lan con un
FW debian che si connette a internet via pptp con un modem adsl 2
speedtouch. Nella dmz ho un server smtp, ed un server asterisk, nella
rete interna ho una decina di client. Il mio provider è tiscali
(business con ip statico).
Da qualche mese quando il server asterisk è acceso e connesso si
verificano continue disconnessioni dell'adsl (pppd) che rendono
inutilizzabile la connessione. Spegnendo il server asterisk queste si
verificano ma con ridotta frequenza rendendo possibile comunque la
connessione a internet. La velocità misurata con speedtest.net della
connessione è circa 7Mbps in download e di 400 Kbps in upload.
Pensando che le disconnessioni fossero causate dal FW ho formattato e
reinstallato la debian che è aggiornata alla 6.0.5. Il problema non è
cambiato. Ho comprato un modem adsl speedtouch gemello ma il problema si
è ripresentato invariato. Pensate che le disconnessioni possano essere
causate dall'HW, dalla configurazione SW o da un problema di dopino
telecom/Tiscali. Cambiando operatore risolverei qualcosa? Esiste qualche
possibilità di connessione a internet con ip statico e banda in upload
di almeno 512 kbps (VOIP) che possa sostituire l'ADSL?
# cat /var/log/syslog | grep pppd
Jul 28 20:32:08 router pppd[7130]: Using interface ppp0
Jul 28 20:32:08 router pppd[7130]: Connect: ppp0 <--> /dev/pts/0
Jul 28 20:32:23 router pppd[7130]: CHAP authentication succeeded:
Successful login
Jul 28 20:32:23 router pppd[7130]: CHAP authentication succeeded
Jul 28 20:32:23 router pppd[7130]: local IP address 217.133.81.x
Jul 28 20:32:23 router pppd[7130]: remote IP address 213.205.53.x
Jul 28 20:43:23 router pppd[7130]: No response to 4 echo-requests
Jul 28 20:43:23 router pppd[7130]: Serial link appears to be disconnected.
Jul 28 20:43:23 router pppd[7130]: Connect time 11.0 minutes.
Jul 28 20:43:23 router pppd[7130]: Sent 959969 bytes, received 1898329
bytes.
Jul 28 20:43:29 router pppd[7130]: Connection terminated.
Jul 28 20:43:29 router pppd[7130]: Modem hangup
Jul 28 20:43:29 router pptp[26007]: anon
warn[decaps_hdlc:pptp_gre.c:216]: pppd may have shutdown, see pppd log
Jul 28 20:43:29 router pppd[7130]: Using interface ppp0
Jul 28 20:43:29 router pppd[7130]: Connect: ppp0 <--> /dev/pts/1
Jul 28 20:43:36 router pppd[7130]: CHAP authentication succeeded:
Successful login
Jul 28 20:43:36 router pppd[7130]: CHAP authentication succeeded
Jul 28 20:43:36 router pppd[7130]: local IP address 217.133.x.x
Jul 28 20:43:36 router pppd[7130]: remote IP address 213.205.x.x
Jul 28 20:56:36 router pppd[7130]: No response to 4 echo-requests
Jul 28 20:56:36 router pppd[7130]: Serial link appears to be disconnected.
Jul 28 20:56:36 router pppd[7130]: Connect time 13.0 minutes.
Jul 28 20:56:36 router pppd[7130]: Sent 526470 bytes, received 1094807
bytes.
Jul 28 20:56:42 router pppd[7130]: Connection terminated.
Jul 28 20:56:42 router pppd[7130]: Modem hangup
Jul 28 20:56:42 router pptp[26032]: anon
warn[decaps_hdlc:pptp_gre.c:216]: pppd may have shutdown, see pppd log
Jul 28 20:56:42 router pppd[7130]: Using interface ppp0
Jul 28 20:56:42 router pppd[7130]: Connect: ppp0 <--> /dev/pts/0
Jul 28 20:56:46 router pppd[7130]: CHAP authentication succeeded:
Successful login
Jul 28 20:56:46 router pppd[7130]: CHAP authentication succeeded
Jul 28 20:56:46 router pppd[7130]: local IP address 217.133.x.x
Jul 28 20:56:46 router pppd[7130]: remote IP address 213.205.x.x
Jul 28 21:01:37 router pppd[7130]: Terminating on signal 15
Jul 28 21:01:37 router pppd[7130]: Connect time 4.9 minutes.
Jul 28 21:01:37 router pppd[7130]: Sent 233746 bytes, received 528388 bytes.
Jul 28 21:01:37 router pppd[7130]: Child process pptp 192.168.10.252
--nolaunchpppd (pid 26357) terminated with signal 15
Jul 28 21:01:37 router pppd[7130]: Modem hangup
Jul 28 21:01:37 router pppd[7130]: Connection terminated.
Jul 28 21:01:37 router pppd[7130]: Exit.
Jul 28 21:01:41 router pppd[26402]: pppd 2.4.5 started by root, uid 0
Jul 28 21:01:41 router pppd[26402]: Using interface ppp0
Jul 28 21:01:41 router pppd[26402]: Connect: ppp0 <--> /dev/pts/0
Jul 28 21:01:45 router pppd[26402]: CHAP authentication succeeded:
Successful login
Jul 28 21:01:45 router pppd[26402]: CHAP authentication succeeded
Jul 28 21:01:45 router pppd[26402]: local IP address 217.133.x.x
Jul 28 21:01:45 router pppd[26402]: remote IP address 213.205.x.x
Jul 28 21:24:44 router pppd[26402]: Terminating on signal 15
Jul 28 21:24:44 router pppd[26402]: Connect time 23.0 minutes.
Jul 28 21:24:44 router pppd[26402]: Sent 1860083 bytes, received 739551
bytes.
Jul 28 21:24:44 router pppd[26402]: Child process pptp 192.168.10.252
--nolaunchpppd (pid 26403) terminated with signal 15
Jul 28 21:24:44 router pppd[26402]: Modem hangup
Jul 28 21:24:44 router pppd[26402]: Connection terminated.
Jul 28 21:24:44 router pppd[26402]: Exit.
Jul 28 21:24:53 router pppd[26489]: pppd 2.4.5 started by root, uid 0
Jul 28 21:24:53 router pppd[26489]: Using interface ppp0
Jul 28 21:24:53 router pppd[26489]: Connect: ppp0 <--> /dev/pts/0
Jul 28 21:24:56 router pppd[26489]: CHAP authentication succeeded:
Successful login
Jul 28 21:24:56 router pppd[26489]: CHAP authentication succeeded
Jul 28 21:24:57 router pppd[26489]: local IP address 217.133.x.x
Jul 28 21:24:57 router pppd[26489]: remote IP address 213.205.53.125g
del pppd:
# cat /var/log/syslog | grep 'Connect time'
Jul 28 12:26:21 router pppd[7130]: Connect time 1312.3 minutes.
Jul 28 13:05:02 router pppd[7130]: Connect time 38.4 minutes.
Jul 28 13:26:42 router pppd[7130]: Connect time 21.5 minutes.
Jul 28 13:28:52 router pppd[7130]: Connect time 2.0 minutes.
Jul 28 13:47:05 router pppd[7130]: Connect time 18.0 minutes.
Jul 28 13:51:15 router pppd[7130]: Connect time 4.0 minutes.
Jul 28 14:01:14 router pppd[7130]: Connect time 9.0 minutes.
Jul 28 14:03:24 router pppd[7130]: Connect time 2.0 minutes.
Jul 28 14:45:06 router pppd[7130]: Connect time 40.5 minutes.
Jul 28 15:15:47 router pppd[7130]: Connect time 30.5 minutes.
Jul 28 15:24:27 router pppd[7130]: Connect time 8.5 minutes.
Jul 28 19:47:09 router pppd[7130]: Connect time 262.6 minutes.
Jul 28 19:51:00 router pppd[7130]: Connect time 3.7 minutes.
Jul 28 19:51:50 router pppd[7130]: Connect time 0.7 minutes.
Jul 28 19:53:17 router pppd[7130]: Connect time 0.1 minutes.
Jul 28 20:31:02 router pppd[7130]: Connect time 37.8 minutes.
Jul 28 20:43:23 router pppd[7130]: Connect time 11.0 minutes.
Jul 28 20:56:36 router pppd[7130]: Connect time 13.0 minutes.
Jul 28 21:01:37 router pppd[7130]: Connect time 4.9 minutes.
Jul 28 21:24:44 router pppd[26402]: Connect time 23.0 minutes.
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