上海电信DNS频繁DOWN掉的问题请教！
我是上海电信的ADSL用户，最近用了华硕WL－600G的ADSL＋无线路由一体猫！这些时间用起来总是麻烦不断，经常断线！后经过查看路由日志，发现上面出现了
以下信息：
Primary DNS Server Down
Secondary DNS Server Down
于是在返回查看PPPoE状态，发现：PPPoE Down的信息，必须要重启猫才行！
我这里默认的DNS是Primary DNS Server:202.109.15.135Secondary DNS Server:202.96.209.134
后来我把猫的DNS改成手动填入以上地址，不再自动获得，上述情况仍然存在！
网上搜出上海的DNS我也一一试过，也不行！只能填入上述地址才能正常上网，但是过一些时间就会DOWN！时间也不固定，没有规律。
请高手们帮我分析下什么原因！
以下是我正常上网情况下的路由日志（里面涉及的MAC地址我没有抄）
《DNS Down掉的时候的日志我稍后补上！》：
Jan 1 00:00:27usernoticekernel: klogd started: BusyBox v1.00 (2008.12.18-03:13+0000) Jan 1 00:00:27userwarnkernel: Linux version 2.6.8.1 (root@Yau) (gcc version 3.4.2) #2 Wed Dec 24 19:31:20 CST 2008 Jan 1 00:00:27userwarnkernel: Total Flash size: 4096K with 71 sectors Jan 1 00:00:27userwarnkernel: 96348GW-10 prom init Jan 1 00:00:27userwarnkernel: CPU revision is: 00029107 Jan 1 00:00:27userwarnkernel: mpi: No Card is in the PCMCIA slot Jan 1 00:00:27userwarnkernel: Determined physical RAM map: Jan 1 00:00:27userwarnkernel: memory: 00fa0000 @ 00000000 (usable) Jan 1 00:00:28userwarnkernel: Built 1 zonelists Jan 1 00:00:28userwarnkernel: Kernel command line: root=31:0 ro noinitrd Jan 1 00:00:28userwarnkernel: brcm mips: enabling icache and dcache... Jan 1 00:00:28userwarnkernel: Primary instruction cache 16kB, physically tagged, 2-way, linesize 16 bytes. Jan 1 00:00:28userwarnkernel: Primary data cache 8kB 2-way, linesize 16 bytes. Jan 1 00:00:28userwarnkernel: PID hash table entries: 64 (order 6: 512 bytes) Jan 1 00:00:28userwarnkernel: Using 128.000 MHz high precision timer. Jan 1 00:00:28userwarnkernel: Dentry cache hash table entries: 4096 (order: 2, 16384 bytes) Jan 1 00:00:28userwarnkernel: Inode-cache hash table entries: 2048 (order: 1, 8192 bytes) Jan 1 00:00:28userwarnkernel: Calibrating delay loop... 255.59 BogoMIPS Jan 1 00:00:28userwarnkernel: Mount-cache hash table entries: 512 (order: 0, 4096 bytes) Jan 1 00:00:28userwarnkernel: Checking for 'wait' instruction... unavailable. Jan 1 00:00:28userwarnkernel: Can't analyze prologue code at 8019bf84 Jan 1 00:00:28userwarnkernel: Using noop io scheduler Jan 1 00:00:28userwarnkernel: bcm963xx_mtd driver v1.0 Jan 1 00:00:28userwarnkernel: brcmboard: brcm_board_init entry Jan 1 00:00:28userwarnkernel: bcm963xx_serial driver v2.0 Jan 1 00:00:28userwarnkernel: u32 classifier Jan 1 00:00:28userwarnkernel: OLD policer on Jan 1 00:00:28usernoticekernel: Ebtables v2.0 registered Jan 1 00:00:28userwarnkernel: VFS: Mounted root (squashfs filesystem) readonly. Jan 1 00:00:28userwarnkernel: Algorithmics/MIPS FPU Emulator v1.5 Jan 1 00:00:28userwarnkernel: atmapi: module license 'Proprietary' taints kernel. Jan 1 00:00:28userwarnkernel: blaadd: blaa_detect entry Jan 1 00:00:28userwarnkernel: adsl: adsl_init entry Jan 1 00:00:28userwarnkernel: Broadcom BCM6348A2 Ethernet Network Device v0.3 Dec 24 2008 19:31:14 Jan 1 00:00:28userwarnkernel: Config Ethernet Switch Through MDIO Sseudo PHY Interface Jan 1 00:00:28userwarnkernel: eth0: MAC Address: Jan 1 00:00:28userwarnkernel: Broadcom BCM6348A2 USB Network Device v0.4 Dec 24 2008 19:31:15 Jan 1 00:00:28userwarnkernel: usb0: MAC Address: Jan 1 00:00:28userwarnkernel: usb0: Host MAC Address: Jan 1 00:00:28userwarnkernel: PCI: Enabling device 0000:00:01.0 (0004 -> 0006) Jan 1 00:00:28userwarnkernel: wl: srom not detected, using main memory mapped srom info (wombo board) Jan 1 00:00:28userwarnkernel: wl0: wlc_attach: using main board MAC address base in NVRAM (wombo board) Jan 1 00:00:28userwarnkernel: wl0 MAC Address: Jan 1 00:00:28userwarnkernel: dgasp: kerSysRegisterDyingGaspHandler: wl0 registered Jan 1 00:00:28userwarnkernel: wl0: Broadcom BCM4318 802.11 Wireless Controller 3.91.41.0 Jan 1 00:00:28userwarnkernel: BcmAdsl_Initialize=0xC0054208, g_pFnNotifyCallback=0xC00673A4 Jan 1 00:00:28userwarnkernel: AdslCoreHwReset: AdslOemDataAddr = 0xA0FF8054 Jan 1 00:00:28userwarnkernel: dgasp: kerSysRegisterDyingGaspHandler: dsl0 registered Jan 1 00:00:28userwarnkernel: ip_tables: (C) 2000-2002 Netfilter core team Jan 1 00:00:28usercritkernel: eth0 Link UP. Jan 1 00:00:28userwarnkernel: ip_conntrack version 2.1 (125 buckets, 0 max) - 384 bytes per conntrack Jan 1 00:00:28userwarnkernel: ip_conntrack_rtsp: falsely claims to have parameter setup_timeout Jan 1 00:00:28userwarnkernel: ip_conntrack_rtsp v0.01 loading Jan 1 00:00:28userwarnkernel: ip_nat_rtsp v0.01 loading Jan 1 00:00:28usercritkernel: ADSL G.994 training Jan 1 00:00:28usercritkernel: ADSL G.992 started Jan 1 00:00:28usercritkernel: ADSL G.992 channel analysis Jan 1 00:00:28usercritkernel: ADSL link up, fast, us=583, ds=3455 Jan 1 00:00:30userwarnkernel: uhci_hcd: falsely claims to have parameter debug Jan 1 00:00:30userwarnkernel: PCI: Enabling device 0000:00:07.0 (0000 -> 0001) Jan 1 00:00:31userwarnkernel: PCI: Enabling device 0000:00:07.1 (0000 -> 0001) Jan 1 00:00:32userwarnkernel: PCI: Enabling device 0000:00:07.2 (0000 -> 0002) Jan 1 00:00:32userwarnkernel: capbase:::1000010 Jan 1 00:00:32userwarnkernel: capbase:::1000010 Jan 1 00:00:33userwarnkernel: usblp: falsely claims to have parameter proto_bias Jan 1 00:00:35userwarnkernel: ov511: falsely claims to have parameter ov518_color Jan 1 00:00:35userwarnkernel: pwc: falsely claims to have parameter dev_hint Jan 1 00:00:35usernoticekernel: SCSI subsystem initialized Jan 1 00:00:37daemonnoticepppd: pppd 2.4.1 started by admin, uid 0 Jan 1 00:00:38daemonnoticepppd: PPP: Start to connect ... Jan 1 00:00:38daemoncritpppd: PPP server detected. Jan 1 00:00:40daemoncritpppd: PPP session established. Jan 1 00:00:43daemoncritpppd: PPP LCP UP. Jan 1 00:00:43daemoncritpppd: Received valid IP address from server. Connection UP. Jan 1 00:00:44usernoticednsprobe: dnsprobe started! Jan 1 00:00:48usernoticesyslog: siproxd.c:192 INFO:siproxd-0.5.10-3847 i686-redhat-linux-gnu starting up Jan 1 00:00:48usernoticesyslog: siproxd.c:218 INFO:daemonized, pid=1153 Jan 1 00:00:48usernoticeigmp: igmp started! Jan 1 00:00:48usernoticesyslog: sock.c:65 INFO:bound to port 5060 Jan 1 00:00:48usernoticesyslog: register.c:65 WARNING:registration file not found, starting with empty table Jan 1 00:00:48usernoticesyslog: siproxd.c:265 INFO:siproxd-0.5.10-3847 i686-redhat-linux-gnu started May 3 01:41:29usernoticeigmp: interface 116.235.161.96, UPSTREAM ver=0x16 name=ppp_8_81_1 index=19 May 3 01:41:29usernoticeigmp: interface 192.168.1.1, DOWNSTREAM ver=0x16 name=br0 index=8 May 3 01:41:36userwarnkernel: HTB: quantum of class 10040 is small. Consider r2q change. 请高手帮帮忙吧，这几天真的郁闷死了！ 没有人知道吗？还是没有人遇到过这种情况？ 断线的话dns肯定是断开了，看看你的猫获取到得线路状态是如何！先看是否是线路问题 4# YES东
东哥，这是我DNS断线的信息：
May 3 15:47:38userwarndnsprobe: dns query failed May 3 15:47:38usernoticednsprobe: Primary DNS server Is Down... Switching To Secondary DNS server May 3 15:48:09usernoticednsprobe: Switching Back To Primary DNS server
下面是我线路信息：
Mode:ADSL2+ Line Coding:Trellis On Status:No Defect Link Power State:L0 DownstreamUpstreamSNR Margin (dB):29.6 19.0 Attenuation (dB):31.0 13.6 Output Power (dBm):921.6 12.4 Attainable Rate (Kbps):19456 616 Rate (Kbps):3455 583 MSGc (number of bytes in overhead channel message):59 66 B (number of bytes in Mux Data Frame):107 18 M (number of Mux Data Frames in FEC Data Frame):1 1 T (Mux Data Frames over sync bytes):1 1 R (number of check bytes in FEC Data Frame):0 0 S (ratio of FEC over PMD Data Frame length):0.9908 0.9870 L (number of bits in PMD Data Frame):872 154 D (interleaver depth):1 1 Delay (msec):0 0 Super Frames:3413398 3413396 Super Frame Errors:2 1 RS Words:0 0 RS Correctable Errors:0 0 RS Uncorrectable Errors:0 N/A HEC Errors:0 0 OCD Errors:0 0 LCD Errors:0 0 Total Cells:447926667 75626516 Data Cells:25178943 5009658 Bit Errors:0 0 Total ES:2 1 Total SES:0 0 Total UAS:18 27 其实从上面的线路信息来看，应该是很不错的吧！就奇怪了！怎么会就断网，真的是这款路由不河蟹？ 东哥，麻烦你再进来看看吧！！
页:
[1]