Модемы XXX и 2500U/BRU/D (Software Version: RU_1.40) соединяют через Интернет два сегмента локальной сети. Соединение инициируют два Windows Server 2003 по PPTP. Соответственно, на модеме настроен виртуальный сервер на порту 1723. Канал устанавливается, но регулярно рвется. При этом, в журнале событий сервера на стороне Длинка фиксируются события об отключении LAN-кабеля. По логу модема видно, что он перезагружается. Серверы вновь пытаются установить PPTP-тоннель и в логе модема появляется сообщение p_conntrack_pptp: error during exp_gre. Вот лог модема с момента произвольной перезагрузки до следующей перезагрузки в 11:26. По логу видно, что перезагрузке предшествовали сообщения p_conntrack_pptp: error during exp_gre. На скриншоте видно как это событие фиксируется в журнале сервера. Проверялось на каналах и оборудовании двух провайдеров.
Что означает сообщение p_conntrack_pptp: error during exp_gre и почему перезагружается модем?
И небольшой оффтопик: какое отношение к модему имеет хост 128.9.0.107?
iptables -t nat -A PREROUTING -i br0 -d 10.0.0.2 -p udp --dport 53 -j DNAT --to 128.9.0.107
iptables -t nat -D PREROUTING -i br0 -d 10.0.0.2 -p udp --dport 53 -j DNAT --to 128.9.0.107 2>/dev/null
Код:
System Log
Date/Time Facility Severity Message
Jan 1 00:00:22 syslog emerg BCM96345 started: BusyBox v1.00 (2008.07.15-02:28+0000)
Jan 1 00:00:22 user notice kernel: klogd started: BusyBox v1.00 (2008.07.15-02:28+0000)
Jan 1 00:00:22 user warn kernel: Linux version 2.6.8.1 (jenny@BS5) (gcc version 3.4.2) #1 Tue Jul 15 10:27:53 CST 2008
Jan 1 00:00:22 user warn kernel: Serial flash device: name S25FL016A, id 0x0114, size 2048KB
Jan 1 00:00:22 user warn kernel: 96332CG prom init
Jan 1 00:00:22 user warn kernel: CPU revision is: 00029010
Jan 1 00:00:22 user warn kernel: Determined physical RAM map:
Jan 1 00:00:22 user warn kernel: memory: 007a0000 @ 00000000 (usable)
Jan 1 00:00:22 user debug kernel: On node 0 totalpages: 1952
Jan 1 00:00:22 user debug kernel: DMA zone: 1952 pages, LIFO batch:1
Jan 1 00:00:22 user debug kernel: Normal zone: 0 pages, LIFO batch:1
Jan 1 00:00:22 user debug kernel: HighMem zone: 0 pages, LIFO batch:1
Jan 1 00:00:22 user warn kernel: Built 1 zonelists
Jan 1 00:00:22 user warn kernel: Kernel command line: root=31:0 ro noinitrd console=ttyS0,115200
Jan 1 00:00:22 user warn kernel: brcm mips: enabling icache and dcache...
Jan 1 00:00:22 user warn kernel: Primary instruction cache 16kB, physically tagged, 2-way, linesize 16 bytes.
Jan 1 00:00:22 user warn kernel: Primary data cache 8kB 2-way, linesize 16 bytes.
Jan 1 00:00:22 user warn kernel: PID hash table entries: 32 (order 5: 256 bytes)
Jan 1 00:00:22 user warn kernel: Using 120.000 MHz high precision timer.
Jan 1 00:00:22 user warn kernel: Dentry cache hash table entries: 2048 (order: 1, 8192 bytes)
Jan 1 00:00:22 user warn kernel: Inode-cache hash table entries: 1024 (order: 0, 4096 bytes)
Jan 1 00:00:22 user info kernel: Memory: 5688k/7808k available (1511k kernel code, 2100k reserved, 224k data, 76k init, 0k highmem)
Jan 1 00:00:22 user warn kernel: Calibrating delay loop... 239.20 BogoMIPS
Jan 1 00:00:22 user warn kernel: Mount-cache hash table entries: 512 (order: 0, 4096 bytes)
Jan 1 00:00:22 user warn kernel: Checking for 'wait' instruction... unavailable.
Jan 1 00:00:22 user info kernel: NET: Registered protocol family 16
Jan 1 00:00:22 user warn kernel: Total Flash size: 2048K with 32 sectors
Jan 1 00:00:22 user warn kernel: File system address: 0xbfc10100
Jan 1 00:00:22 user warn kernel: Can't analyze prologue code at 80188904
Jan 1 00:00:22 user info kernel: Initializing Cryptographic API
Jan 1 00:00:22 user info kernel: PPP generic driver version 2.4.2
Jan 1 00:00:22 user info kernel: PPP Deflate Compression module registered
Jan 1 00:00:22 user info kernel: PPP BSD Compression module registered
Jan 1 00:00:22 user info kernel: MPPE/MPPC encryption/compression module registered
Jan 1 00:00:22 user info kernel: NET: Registered protocol family 24
Jan 1 00:00:22 user warn kernel: Using noop io scheduler
Jan 1 00:00:22 user warn kernel: bcm963xx_mtd driver v1.0
Jan 1 00:00:22 user warn kernel: brcmboard: brcm_board_init entry
Jan 1 00:00:22 user warn kernel:
Jan 1 00:00:22 user warn kernel: ======= GPIO CONFIG_BCM96338 inited ========
Jan 1 00:00:22 user info kernel: Serial: BCM63XX driver $Revision: 3.00 $
Jan 1 00:00:22 user warn kernel: ttyS0 at MMIO 0xfffe0300 (irq = 10) is a BCM63XX
Jan 1 00:00:22 user info kernel: NET: Registered protocol family 2
Jan 1 00:00:22 user info kernel: IP: routing cache hash table of 512 buckets, 4Kbytes
Jan 1 00:00:22 user info kernel: TCP: Hash tables configured (established 512 bind 1024)
Jan 1 00:00:22 user warn kernel: ip_conntrack version 2.1 (61 buckets, 0 max) - 376 bytes per conntrack
Jan 1 00:00:22 user warn kernel: ip_tables: (C) 2000-2002 Netfilter core team
Jan 1 00:00:22 user info kernel: Initializing IPsec netlink socket
Jan 1 00:00:22 user info kernel: NET: Registered protocol family 1
Jan 1 00:00:22 user info kernel: NET: Registered protocol family 17
Jan 1 00:00:22 user info kernel: NET: Registered protocol family 15
Jan 1 00:00:22 user notice kernel: Ebtables v2.0 registered
Jan 1 00:00:22 user info kernel: NET: Registered protocol family 8
Jan 1 00:00:22 user info kernel: NET: Registered protocol family 20
Jan 1 00:00:22 user info kernel: 802.1Q VLAN Support v1.8 Ben Greear
Jan 1 00:00:22 user debug syslog: sntp -s clock.fmt.he.net -s time.nist.gov -t "Moscow, St. Petersburg, Volgograd" &
Jan 1 00:00:22 user info kernel: All bugs added by David S. Miller
Jan 1 00:00:22 user warn kernel: VFS: Mounted root (squashfs filesystem) readonly.
Jan 1 00:00:22 user info kernel: Freeing unused kernel memory: 76k freed
Jan 1 00:00:22 user warn kernel: Algorithmics/MIPS FPU Emulator v1.5
Jan 1 00:00:22 user warn kernel: atmapi: module license 'Proprietary' taints kernel.
Jan 1 00:00:22 user warn kernel: adsl: adsl_init entry
Jan 1 00:00:22 user warn kernel: blaadd: blaa_detect entry
Jan 1 00:00:22 user info kernel: Broadcom BCMPROCFS v1.0 initialized
Jan 1 00:00:22 user warn kernel: Broadcom BCM6338A2 Ethernet Network Device v0.3 Jul 15 2008 10:27:06
Jan 1 00:00:22 user warn kernel: Config Internal PHY Through MDIO
Jan 1 00:00:22 user info kernel: BCM63xx_ENET: 100 MB Full-Duplex (auto-neg)
Jan 1 00:00:22 user warn kernel: eth0: MAC Address: 00:1B:11:C5:12:88
Jan 1 00:00:22 user crit kernel: eth0 Link UP.
Jan 1 00:00:22 user warn kernel: BcmAdsl_Initialize=0xC00733F8, g_pFnNotifyCallback=0xC008BC64
Jan 1 00:00:22 user warn kernel: AnnexCParam=0x7FFF7EB8 AnnexAParam=0x00003981 adsl2=0x00000000
Jan 1 00:00:22 user warn kernel: pSdramPHY=0xA07FFFF8, 0x1B784E 0xDEADBEEF
Jan 1 00:00:22 user warn kernel: AdslCoreHwReset: AdslOemDataAddr = 0xA07FD3D4
Jan 1 00:00:22 user warn kernel: AnnexCParam=0x7FFF7EB8 AnnexAParam=0x00003981 adsl2=0x00000000
Jan 1 00:00:22 user warn kernel: dgasp: kerSysRegisterDyingGaspHandler: dsl0 registered
Jan 1 00:00:22 user warn kernel: ATM proc init !!!
Jan 1 00:00:22 user crit kernel: ADSL G.994 training
Jan 1 00:00:22 user warn kernel: ip_conntrack_pptp version 2.1 loaded
Jan 1 00:00:22 user warn kernel: ip_nat_pptp version 2.0 loaded
Jan 1 00:00:22 user crit kernel: ADSL G.992 started
Jan 1 00:00:22 user info kernel: device eth0 entered promiscuous mode
Jan 1 00:00:22 user info kernel: br0: port 1(eth0) entering learning state
Jan 1 00:00:22 user info kernel: br0: topology change detected, propagating
Jan 1 00:00:22 user info kernel: br0: port 1(eth0) entering forwarding state
Jan 1 00:00:22 user crit kernel: ADSL G.992 channel analysis
Jan 1 00:00:22 user debug syslog: echo > /var/snmpd.conf
Jan 1 00:00:24 user debug syslog: echo > /var/hosts
Jan 1 00:00:24 user warn kernel:
Jan 1 00:00:24 user warn kernel: ioctl, p_name=diapd
Jan 1 00:00:25 user crit kernel: ADSL link up, interleaved, us=512, ds=1024
Jan 1 00:00:25 user warn kernel: ATM Soft SAR: ATM link connected.
Jan 1 00:00:26 user warn syslog: dns query failed
Jan 1 00:00:27 user debug syslog: iptables -t nat -A PREROUTING -i br0 -d 10.0.0.2 -p udp --dport 53 -j DNAT --to 128.9.0.107
Jan 1 00:00:28 user debug syslog: echo > /proc/net/ip_conntrack
Jan 1 00:00:28 user debug syslog: echo "1000" > /proc/sys/net/ipv4/ip_conntrack_max
Jan 1 00:00:28 user debug syslog: iptables -t nat -D PREROUTING -i br0 -d 10.0.0.2 -p udp --dport 53 -j DNAT --to 128.9.0.107 2>/dev/null
Jan 1 00:00:28 user debug syslog: iptables -t nat -D POSTROUTING -o nas_0_0_35 -s 10.0.0.0/255.255.255.0 -j MASQUERADE 2>/dev/null
Jan 1 00:00:28 user debug syslog: iptables -t nat -A POSTROUTING -o nas_0_0_35 -s 10.0.0.0/255.255.255.0 -j MASQUERADE
Jan 1 00:00:28 user debug syslog: kill -9 235
Jan 1 00:00:28 user debug syslog: echo > /var/hosts
Jan 1 00:00:29 user debug syslog: iptables -I INPUT 1 -p tcp --dport 80 -i nas_0_0_35 -j ACCEPT
Jan 1 00:00:29 user debug syslog: iptables -I INPUT 1 -p tcp --dport 23 -i nas_0_0_35 -j ACCEPT
Oct 9 11:17:20 user warn kernel: ip_conntrack_pptp: error during exp_gre
Oct 9 11:17:23 user warn kernel: ip_conntrack_pptp: error during exp_gre
Oct 9 11:17:27 user warn kernel: ip_conntrack_pptp: error during exp_gre
Oct 9 11:17:36 user warn kernel: ip_conntrack_pptp: error during exp_gre
Oct 9 11:17:46 user warn kernel: ip_conntrack_pptp: error during exp_gre
Oct 9 11:17:55 user warn kernel: ip_conntrack_pptp: error during exp_gre
Oct 9 11:18:17 user warn kernel: ip_conntrack_pptp: error during exp_gre
Oct 9 11:20:06 user warn kernel: ip_conntrack_pptp: error during exp_gre
Oct 9 11:23:26 user warn kernel: ip_conntrack_pptp: error during exp_gre
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