Здравствуйте. Я являюсь обладателем модема DSL-2540U/BRU/D (H/W: D1), провайдер Укртелеком, скорость подключения 256/128 кбит/c, работает в режиме роутера (настраивал по инструкции Укртелекома
http://ukrtelecom.ua/media/library/d_link_dsl_2540u_routed_last_ru.pdf). Всё было отлично (за год эксплуатации ни одной!!! произвольной потери соединения) , но в течении последних двух недель модем постоянно теряет связь с интернетом с промежутками от 1 минуты до нескольких часов. При этом гаснут индикаторы “DSL” и “internet”. Обычно модем сразу восстанавливает соединение, но иногда это занимает более 30 минут, особенно по вечерам. Пробовал различные версии прошивок, выставил модуляцию G.DMT, отключил все телефонные аппараты, проверил состояние контактов в телефонных розетках – эффекта ноль. Помогите пожалуйста разобраться в чем причина, в железе модема, телефонной линии или оборудовании провайдера.
Цитата:
Device Info
Board ID: DSL-2540U
Software Version: RU_1.34
Bootloader (CFE) Version: 1.0.37-8.7
Release Date: Dec. 17, 2009
This information reflects the current status of your DSL connection.
Line Rate - Upstream (Kbps): 623
Line Rate - Downstream (Kbps): 1280
LAN IP Address: 192.168.1.1
Default Gateway: 195.5.5.186
Primary DNS Server: 213.179.249.132
Secondary DNS Server: 213.179.249.135
Date/Time: Sun Dec 27 22:28:15 2009
Цитата:
Statistics -- ADSL
Mode: G.DMT
Type: Interleave
Line Coding: Trellis On
Status: No Defect
Link Power State: L0
Downstream Upstream
SNR Margin (dB): 11.5 12.0
Attenuation (dB): 37.0 31.5
Output Power (dBm): 11.9 17.9
Attainable Rate (Kbps): 1522 973
Rate (Kbps): 1280 623
K (number of bytes in DMT frame): 38 19
R (number of check bytes in RS code word): 16 16
S (RS code word size in DMT frame): 4 8
D (interleaver depth): 16 2
Delay (msec): 16 4
Super Frames: 2653 2653
Super Frame Errors: 5 0
RS Words: 45114 21556
RS Correctable Errors: 21554 84
RS Uncorrectable Errors: 6 N/A
HEC Errors: 0 0
OCD Errors: 0 0
LCD Errors: 0 0
Total Cells: 136450 0
Data Cells: 244 0
Bit Errors: 0 0
Total ES: 5 0
Total SES: 0 0
Total UAS: 75 0
Лог модема от включения питания и удачного подключения к сети до разрыва соединения.
Цитата:
System Log
Date/Time Facility Severity Message
Jan 1 00:00:24 user warn kernel: blaadd: blaa_detect entry
Jan 1 00:00:24 user info kernel: Broadcom BCMPROCFS v1.0 initialized
Jan 1 00:00:24 user warn kernel: Broadcom BCM6338A2 Ethernet Network Device v0.3 Dec 17 2009 17:21:21
Jan 1 00:00:24 user warn kernel: Config Ethernet Switch Through MDIO Pseudo PHY Interface
Jan 1 00:00:24 user warn kernel: dgasp: kerSysRegisterDyingGaspHandler: eth0 registered
Jan 1 00:00:24 user warn kernel: eth0: MAC Address: 00:21:91:78:5C:10
Jan 1 00:00:24 user warn kernel: BcmAdsl_Initialize=0xC0068A08, g_pFnNotifyCallback=0xC00813B4
Jan 1 00:00:24 user warn kernel: AnnexCParam=0x7FFF7EB8 AnnexAParam=0x00000985 adsl2=0x00000000
Jan 1 00:00:24 user warn kernel: pSdramPHY=0xA07FFFF8, 0x25018257 0x18201241
Jan 1 00:00:24 user warn kernel: AdslCoreHwReset: AdslOemDataAddr = 0xA07EF96C
Jan 1 00:00:24 user warn kernel: AnnexCParam=0x7FFF7EB8 AnnexAParam=0x00000985 adsl2=0x00000000
Jan 1 00:00:24 user warn kernel: dgasp: kerSysRegisterDyingGaspHandler: dsl0 registered
Jan 1 00:00:24 user warn kernel: ATM proc init !!!
Jan 1 00:00:24 user warn kernel: ip_tables: (C) 2000-2002 Netfilter core team
Jan 1 00:00:24 user warn kernel: ip_conntrack version 2.1 (61 buckets, 0 max) - 376 bytes per conntrack
Jan 1 00:00:24 user crit kernel: ADSL G.994 training
Jan 1 00:00:24 user warn kernel: ip_conntrack_pptp version 2.1 loaded
Jan 1 00:00:24 user warn kernel: ip_nat_pptp version 2.0 loaded
Jan 1 00:00:24 user crit kernel: ADSL G.992 started
Jan 1 00:00:24 user warn kernel: unregistering helper for port 5060
Jan 1 00:00:24 user warn kernel: unregistering helper for port 5060
Jan 1 00:00:24 user crit kernel: ADSL G.992 channel analysis
Jan 1 00:00:24 user info kernel: device eth0 entered promiscuous mode
Jan 1 00:00:24 user info kernel: br0: port 1(eth0) entering learning state
Jan 1 00:00:24 user info kernel: br0: topology change detected, propagating
Jan 1 00:00:24 user info kernel: br0: port 1(eth0) entering forwarding state
Jan 1 00:00:24 user info kernel: device nas_0_1_32 entered promiscuous mode
Jan 1 00:00:24 user info kernel: br0: port 2(nas_0_1_32) entering learning state
Jan 1 00:00:24 user info kernel: br0: topology change detected, propagating
Jan 1 00:00:24 user info kernel: br0: port 2(nas_0_1_32) entering forwarding state
Jan 1 00:00:24 user debug syslog: echo > /var/snmpd.conf
Jan 1 00:00:25 user crit kernel: ADSL link up, interleaved, us=623, ds=1280
Jan 1 00:00:25 user warn kernel: ADSL1 connection
Jan 1 00:00:25 user warn kernel: ATM Soft SAR: ATM link connected.
Jan 1 00:00:26 user warn kernel:
Jan 1 00:00:26 user warn kernel: ioctl, p_name=diapd
Jan 1 00:00:27 user debug syslog: pppd plugin pppoe nas_0_1_32 nodetach user '*******@dsl.ukrtel.net' password ********** interface_name 0_1_32_1 usepeerdns refuse-eap persist lcp-echo-interval 30 holdoff 3 lcp-echo-failure 3 maxfail 0
Jan 1 00:00:30 daemon info pppd[300]: RP-PPPoE plugin version 3.3 compiled against pppd 2.4.3
Jan 1 00:00:30 daemon info pppd[300]: Plugin pppoe called.
Jan 1 00:00:30 daemon notice pppd[300]: pppd 2.4.3 started by admin, uid 0
Jan 1 00:00:31 user info kernel: br0: port 1(eth0) entering disabled state
Jan 1 00:00:32 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
Jan 1 00:00:48 daemon info pppd[300]: PPP session is 7441
Jan 1 00:00:48 daemon info pppd[300]: Using interface ppp0_1_32_1
Jan 1 00:00:48 daemon notice pppd[300]: Connect: ppp_0_1_32_1 <--> nas_0_1_32
Jan 1 00:00:48 daemon warn pppd[300]: Couldn't increase MRU to 1500
Jan 1 00:00:49 daemon notice pppd[300]: PAP authentication succeeded
Jan 1 00:00:49 daemon notice pppd[300]: peer from calling number 00:90:1A:42:60:01 authorized
Jan 1 00:00:49 daemon notice pppd[300]: local IP address 94.178.173.236
Jan 1 00:00:49 daemon notice pppd[300]: remote IP address 195.5.5.186
Jan 1 00:00:49 daemon notice pppd[300]: primary DNS address 213.179.249.134
Jan 1 00:00:49 daemon notice pppd[300]: secondary DNS address 213.179.249.131
Jan 1 00:00:51 user debug syslog: route add default gw 195.5.5.186 2>/dev/null
Jan 1 00:00:51 user debug syslog: iptables -A FORWARD -o ppp_0_1_32_1 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
Jan 1 00:00:51 user debug syslog: iptables -A FORWARD -i ppp_0_1_32_1 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
Jan 1 00:00:51 user debug syslog: echo > /proc/net/ip_conntrack
Jan 1 00:00:51 user debug syslog: echo "1000" > /proc/sys/net/ipv4/ip_conntrack_max
Jan 1 00:00:51 user debug syslog: echo 2000 > /proc/sys/net/ipv4/netfilter/ip_conntrack_generic_timeout
Jan 1 00:00:51 user debug syslog: echo 600 > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_established
Jan 1 00:00:51 user debug syslog: echo 1400 > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_fin_wait
Jan 1 00:00:52 user debug syslog: echo 120 > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_time_wait
Jan 1 00:00:52 user debug syslog: echo 4096 > /proc/sys/net/ipv4/ipfrag_high_thresh
Jan 1 00:00:52 user debug syslog: echo 1024 > /proc/sys/net/ipv4/ipfrag_low_thresh
Jan 1 00:00:52 user debug syslog: echo 5 > /proc/sys/net/ipv4/ipfrag_time
Jan 1 00:00:52 user debug syslog: iptables -t nat -D PREROUTING -i br0 -d 192.168.1.1 -p udp --dport 53 -j DNAT --to 128.9.0.107 2>/dev/null
Jan 1 00:00:52 user debug syslog: iptables -t nat -D POSTROUTING -o ppp_0_1_32_1 -s 192.168.1.0/255.255.255.0 -j MASQUERADE 2>/dev/null
Jan 1 00:00:52 user debug syslog: iptables -t nat -A POSTROUTING -o ppp_0_1_32_1 -s 192.168.1.0/255.255.255.0 -j MASQUERADE
Jan 1 00:00:52 user debug syslog: iptables -t nat -D PREROUTING -i br0 -d 192.168.1.1 -p udp --dport 53 -j DNAT --to 213.179.249.134 2>/dev/null
Jan 1 00:00:52 user debug syslog: iptables -t nat -A PREROUTING -i br0 -d 192.168.1.1 -p udp --dport 53 -j DNAT --to 213.179.249.134
Jan 1 00:00:52 user debug syslog: /bin/dnsprobe &
Jan 1 00:00:53 user notice dnsprobe[477]: dnsprobe started!
Jan 1 00:00:54 user debug syslog: echo 4096 > /proc/sys/net/ipv4/ipfrag_high_thresh
Jan 1 00:00:54 user debug syslog: echo 1024 > /proc/sys/net/ipv4/ipfrag_low_thresh
Jan 1 00:00:54 user debug syslog: echo 5 > /proc/sys/net/ipv4/ipfrag_time
Dec 27 18:06:06 user alert kernel: Intrusion -> IN=ppp_0_1_32_1 OUT= MAC= SRC=79.125.57.247 DST=94.178.173.236 LEN=40 TOS=0x00 PREC=0x00 TTL=110 ID=256 DF PROTO=TCP SPT=12200 DPT=1080 WINDOW=8192 RES=0x00 SYN URGP=0
Dec 27 18:06:59 user alert kernel: Intrusion -> IN=ppp_0_1_32_1 OUT= MAC= SRC=92.113.92.159 DST=94.178.173.236 LEN=60 TOS=0x00 PREC=0x00 TTL=62 ID=35753 DF PROTO=TCP SPT=2515 DPT=23 WINDOW=5808 RES=0x00 SYN URGP=0
Dec 27 18:07:02 user alert kernel: Intrusion -> IN=ppp_0_1_32_1 OUT= MAC= SRC=92.113.92.159 DST=94.178.173.236 LEN=60 TOS=0x00 PREC=0x00 TTL=62 ID=35754 DF PROTO=TCP SPT=2515 DPT=23 WINDOW=5808 RES=0x00 SYN URGP=0
Dec 27 18:07:47 user alert kernel: Intrusion -> IN=ppp_0_1_32_1 OUT= MAC= SRC=94.178.231.133 DST=94.178.173.236 LEN=48 TOS=0x00 PREC=0x00 TTL=126 ID=39514 DF PROTO=TCP SPT=24139 DPT=445 WINDOW=8192 RES=0x00 SYN URGP=0
Dec 27 18:07:50 user alert kernel: Intrusion -> IN=ppp_0_1_32_1 OUT= MAC= SRC=94.178.231.133 DST=94.178.173.236 LEN=48 TOS=0x00 PREC=0x00 TTL=126 ID=39658 DF PROTO=TCP SPT=24139 DPT=445 WINDOW=8192 RES=0x00 SYN URGP=0
Dec 27 18:17:06 user alert kernel: Intrusion -> IN=ppp_0_1_32_1 OUT= MAC= SRC=79.125.51.238 DST=94.178.173.236 LEN=40 TOS=0x00 PREC=0x00 TTL=110 ID=256 DF PROTO=TCP SPT=12200 DPT=1080 WINDOW=8192 RES=0x00 SYN URGP=0
Dec 27 18:18:41 user crit kernel: eth0 Link UP.
Dec 27 18:18:42 user info kernel: br0: port 1(eth0) entering learning state
Dec 27 18:18:42 user info kernel: br0: topology change detected, propagating
Dec 27 18:18:42 user info kernel: br0: port 1(eth0) entering forwarding state
Dec 27 18:26:56 user alert kernel: Intrusion -> IN=ppp_0_1_32_1 OUT= MAC= SRC=79.125.57.247 DST=94.178.173.236 LEN=40 TOS=0x00 PREC=0x00 TTL=110 ID=256 DF PROTO=TCP SPT=12200 DPT=1080 WINDOW=8192 RES=0x00 SYN URGP=0
Dec 27 18:28:28 user crit kernel: ADSL link down
Dec 27 18:28:30 user crit kernel: ADSL G.994 training
Dec 27 18:28:33 user crit kernel: ADSL G.992 started
Dec 27 18:28:35 daemon notice pppd[300]: Terminating connection due to link down.
Dec 27 18:28:36 daemon info pppd[300]: Connect time 5254227.8 minutes.
Dec 27 18:28:36 daemon info pppd[300]: Sent 2719170 bytes, received 1566710 bytes.
Dec 27 18:28:36 user crit kernel: ADSL G.992 channel analysis
Dec 27 18:28:36 daemon warn pppd[300]: Couldn't increase MRU to 1500
Dec 27 18:28:40 user crit kernel: ADSL G.992 message exchange
Dec 27 18:28:41 user crit kernel: ADSL link up, interleaved, us=623, ds=1280
Dec 27 18:28:41 user warn kernel: ADSL1 connection
Dec 27 18:28:43 daemon notice pppd[300]: Connection terminated....
Dec 27 18:28:45 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
Dec 27 18:28:50 daemon info pppd[300]: Sent PADT
Dec 27 18:28:53 daemon info pppd[300]: PPP session is 9460
Dec 27 18:28:54 daemon info pppd[300]: Using interface ppp0_1_32_1
Dec 27 18:28:54 daemon notice pppd[300]: Connect: ppp_0_1_32_1 <--> nas_0_1_32
Dec 27 18:28:54 daemon warn pppd[300]: Couldn't increase MRU to 1500
Dec 27 18:28:55 daemon notice pppd[300]: PAP authentication succeeded
Dec 27 18:28:55 daemon notice pppd[300]: peer from calling number 00:90:1A:42:60:01 authorized
Dec 27 18:28:56 daemon notice pppd[300]: local IP address 94.178.172.18
Dec 27 18:28:56 daemon notice pppd[300]: remote IP address 195.5.5.186
Dec 27 18:28:56 daemon notice pppd[300]: primary DNS address 213.179.249.135
Dec 27 18:28:56 daemon notice pppd[300]: secondary DNS address 213.179.249.136
Dec 27 18:29:08 user debug syslog: route add default gw 195.5.5.186 2>/dev/null
Dec 27 18:29:12 user debug syslog: iptables -A FORWARD -o ppp_0_1_32_1 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
Dec 27 18:29:15 user debug syslog: iptables -A FORWARD -i ppp_0_1_32_1 -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu
Dec 27 18:29:19 user debug syslog: echo > /proc/net/ip_conntrack
Dec 27 18:29:21 user debug syslog: echo "1000" > /proc/sys/net/ipv4/ip_conntrack_max
Dec 27 18:29:21 user debug syslog: echo 2000 > /proc/sys/net/ipv4/netfilter/ip_conntrack_generic_timeout
Dec 27 18:29:21 user debug syslog: echo 600 > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_established
Dec 27 18:29:21 user debug syslog: echo 1400 > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_fin_wait
Dec 27 18:29:21 user debug syslog: echo 120 > /proc/sys/net/ipv4/netfilter/ip_conntrack_tcp_timeout_time_wait
Dec 27 18:29:22 user debug syslog: echo 4096 > /proc/sys/net/ipv4/ipfrag_high_thresh
Dec 27 18:29:22 user debug syslog: echo 1024 > /proc/sys/net/ipv4/ipfrag_low_thresh
Dec 27 18:29:22 user debug syslog: echo 5 > /proc/sys/net/ipv4/ipfrag_time
Dec 27 18:29:22 user debug syslog: iptables -t nat -D PREROUTING -i br0 -d 192.168.1.1 -p udp --dport 53 -j DNAT --to 128.9.0.107 2>/dev/null
Dec 27 18:29:23 user debug syslog: iptables -t nat -D POSTROUTING -o ppp_0_1_32_1 -s 192.168.1.0/255.255.255.0 -j MASQUERADE 2>/dev/null
Dec 27 18:29:23 user debug syslog: iptables -t nat -A POSTROUTING -o ppp_0_1_32_1 -s 192.168.1.0/255.255.255.0 -j MASQUERADE
Dec 27 18:29:24 user debug syslog: iptables -t nat -D PREROUTING -i br0 -d 192.168.1.1 -p udp --dport 53 -j DNAT --to 213.179.249.135 2>/dev/null
Dec 27 18:29:25 user debug syslog: iptables -t nat -A PREROUTING -i br0 -d 192.168.1.1 -p udp --dport 53 -j DNAT --to 213.179.249.135
Dec 27 18:29:32 user debug syslog: echo 4096 > /proc/sys/net/ipv4/ipfrag_high_thresh
Dec 27 18:29:33 user debug syslog: echo 1024 > /proc/sys/net/ipv4/ipfrag_low_thresh
Dec 27 18:29:33 user debug syslog: echo 5 > /proc/sys/net/ipv4/ipfrag_time
Dec 27 18:29:35 user alert kernel: Intrusion -> IN=ppp_0_1_32_1 OUT= MAC= SRC=83.237.190.24 DST=94.178.172.18 LEN=48 TOS=0x00 PREC=0x20 TTL=116 ID=10801 DF PROTO=TCP SPT=56120 DPT=1965 WINDOW=8192 RES=0x00 SYN URGP=0
Dec 27 18:29:38 user alert kernel: Intrusion -> IN=ppp_0_1_32_1 OUT= MAC= SRC=83.237.190.24 DST=94.178.172.18 LEN=48 TOS=0x00 PREC=0x20 TTL=116 ID=11027 DF PROTO=TCP SPT=56120 DPT=1965 WINDOW=8192 RES=0x00 SYN URGP=0
Dec 27 18:29:43 user alert kernel: Intrusion -> IN=ppp_0_1_32_1 OUT= MAC= SRC=83.237.190.24 DST=94.178.172.18 LEN=48 TOS=0x00 PREC=0x20 TTL=116 ID=11511 DF PROTO=TCP SPT=56120 DPT=1965 WINDOW=8192 RES=0x00 SYN URGP=0
Dec 27 18:29:57 user alert kernel: Intrusion -> IN=ppp_0_1_32_1 OUT= MAC= SRC=92.124.120.30 DST=94.178.172.18 LEN=52 TOS=0x02 PREC=0x00 TTL=117 ID=118 DF PROTO=TCP SPT=64499 DPT=1965 WINDOW=8192 RES=0x00 SYN URGP=0
Dec 27 18:29:59 user alert kernel: Intrusion -> IN=ppp_0_1_32_1 OUT= MAC= SRC=92.124.120.30 DST=94.178.172.18 LEN=52 TOS=0x02 PREC=0x00 TTL=117 ID=229 DF PROTO=TCP SPT=64499 DPT=1965 WINDOW=8192 RES=0x00 SYN URGP=0
Dec 27 18:30:37 user crit kernel: ADSL link down
Dec 27 18:30:38 user crit kernel: ADSL G.994 training
Dec 27 18:30:40 daemon notice pppd[300]: Terminating connection due to link down.
Dec 27 18:30:40 daemon info pppd[300]: Connect time 1.8 minutes.
Dec 27 18:30:40 daemon info pppd[300]: Sent 23750 bytes, received 20287 bytes.
Dec 27 18:30:41 user crit kernel: ADSL G.992 started
Dec 27 18:30:42 daemon warn pppd[300]: Couldn't increase MRU to 1500
Dec 27 18:30:43 user crit kernel: ADSL G.992 channel analysis
Dec 27 18:30:50 daemon notice pppd[300]: Connection terminated....
Dec 27 18:30:49 user crit kernel: ADSL link down
Dec 27 18:30:51 user crit kernel: ADSL G.994 training
Dec 27 18:30:54 user crit kernel: ADSL G.992 started
Dec 27 18:30:57 user crit kernel: ADSL G.992 channel analysis
Dec 27 18:31:01 user crit kernel: ADSL link down
Dec 27 18:31:03 user crit kernel: ADSL G.994 training
Dec 27 18:31:06 user crit kernel: ADSL G.992 started
Dec 27 18:31:09 user crit kernel: ADSL G.992 channel analysis
Dec 27 18:31:13 user crit kernel: ADSL link down
Dec 27 18:31:16 user crit kernel: ADSL G.994 training
Dec 27 18:31:31 user crit kernel: ADSL G.992 started
Dec 27 18:31:34 user crit kernel: ADSL G.992 channel analysis
Dec 27 18:31:38 user crit kernel: ADSL link down
Dec 27 18:31:40 user crit kernel: ADSL G.992 started
Заранее благодарен за любую помощь