新手求助！这个问题折磨了我好几天了 求各路大神 前来 看下

包含网卡/无线网的网络问题和ADSL/校园网/宽带拨号支持及代理/共享等网络使用问题
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tiemanntan
帖子： 8
注册时间： 2013-12-06 7:07
系统： ubuntu 13.10

新手求助！这个问题折磨了我好几天了 求各路大神 前来 看下

#1

帖子 由 tiemanntan » 2014-04-08 1:30

主要情况： 学校网络 学校给定了IP, Subnet, Gateway 和 DNS 通常情况下 我将路由器设置为静态IP（即输入上面学校给的所有参数），让后在旧电脑上（ubuntu13.04 ） 通过ssh链接学校服务器 再输入密码 便可以成功上网。
问题来了：最近买了太新电脑 同样装的是Ubuntu13.04 每当我在无线状态下ssh链接学校服务器，都会提示 no route to host ! 但是有线状态下，便可以成功链接。 并且虽然链接上了自己的路由器，但是ifconfig里几乎没有任何流量显示， 打入路由器配置登录IP 也无法进入路由器的配置页面（小弟个人感觉，就是更本没有链接上路由器，但是图形界面上显示 扇子 是全满的）。

其次小弟还有一事不明， 我的所有无线流量信息 都出现在了eth1 上，ifconfig 里压根就没有出现wlan0。 其次 我的无线网卡是BCM4313的，驱动是 Ubuntu自带的 Broadcom 802.11 linux STA wireless driver ，但是键入dmesg后 显示 随机 启动的是eth1：BCM4727的相关驱动。 平时我也经常会发现 能够搜索到热点 但是连不上，就算连上也要花好长时间。

求各位大神 相助 小弟 先在这里 谢谢大家了！
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poloshiao
论坛版主
帖子： 18279
注册时间： 2009-08-04 16:33

Re: 新手求助！这个问题折磨了我好几天了 求各路大神 前来 看下

#2

帖子 由 poloshiao » 2014-04-08 5:37

在旧电脑上（ubuntu13.04 ） 通过ssh链接学校服务器 再输入密码 便可以成功上网。
舊電腦
把下面指令 複製 貼進終端機 執行
sudo ifconfig -a
sudo route -nv
把結果直接複製 貼上來
最近买了太新电脑 同样装的是Ubuntu13.04
新電腦
把下面指令 複製 貼進終端機 執行
1. sudo lshw -numeric -class network
2. sudo ifconfig -a
3. sudo route -nv
4. sudo dhclient -v
5. sudo iwlist scan
把結果直接複製 貼上來
每当我在无线状态下ssh链接学校服务器，都会提示 no route to host !
你的 ssh 鏈接 有沒有設定 key ?
有沒有指定 ssh client 端 允許連入的 特定網卡 或 特定網址
如果不確定 請教一下 學校網管人員
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tiemanntan
帖子： 8
注册时间： 2013-12-06 7:07
系统： ubuntu 13.10

Re: 新手求助！这个问题折磨了我好几天了 求各路大神 前来 看下

#3

帖子 由 tiemanntan » 2014-04-08 6:28

:em01 先谢谢您抽空回答我的问题

sudo lshw -numeric -class network

代码： 全选

tiemann@Tiemann:~$ sudo ifconfig -a
eth0      Link encap:Ethernet  HWaddr 74:d0:2b:b1:bd:9e  
          inet addr:192.168.0.106  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::76d0:2bff:feb1:bd9e/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:19 

eth1      Link encap:Ethernet  HWaddr dc:85:de:7d:b2:ce  
          inet addr:192.168.0.100  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::de85:deff:fe7d:b2ce/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:363 errors:0 dropped:0 overruns:0 frame:12519
          TX packets:335 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:27922 (27.9 KB)  TX bytes:25642 (25.6 KB)
          Interrupt:17 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:398 errors:0 dropped:0 overruns:0 frame:0
          TX packets:398 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:33015 (33.0 KB)  TX bytes:33015 (33.0 KB)
sudo route -nv

代码： 全选

tiemann@Tiemann:~$ sudo route -nv
Kernel IP routing table
Destination     Gateway         Genmask         Flags Metric Ref    Use Iface
0.0.0.0         192.168.0.1     0.0.0.0         UG    0      0        0 eth1
192.168.0.0     0.0.0.0         255.255.255.0   U     9      0        0 eth1
sudo lshw -numeric -class network

代码： 全选

tiemann@Tiemann:~$ sudo lshw -numeric -class network
  *-network               
       description: Wireless interface
       product: BCM4313 802.11bgn Wireless Network Adapter [14E4:4727]
       vendor: Broadcom Corporation [14E4]
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth1
       version: 01
       serial: dc:85:de:7d:b2:ce
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=wl0 driverversion=6.30.223.141 (r415941) ip=192.168.0.100 latency=0 multicast=yes wireless=IEEE 802.11abg
       resources: irq:17 memory:f7d00000-f7d03fff
  *-network
       description: Ethernet interface
       product: AR8162 Fast Ethernet [1969:1090]
       vendor: Qualcomm Atheros [1969]
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: eth0
       version: 10
       serial: 74:d0:2b:b1:bd:9e
       capacity: 100Mbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm pciexpress msi msix bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=alx latency=0 link=no multicast=yes port=twisted pair
       resources: irq:45 memory:f7c00000-f7c3ffff ioport:e000(size=128)
sudo dhclient -v

代码： 全选

tiemann@Tiemann:~$ sudo dhclient -v
Internet Systems Consortium DHCP Client 4.2.4
Copyright 2004-2012 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/

Listening on LPF/eth1/dc:85:de:7d:b2:ce
Sending on   LPF/eth1/dc:85:de:7d:b2:ce
Sending on   Socket/fallback
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 3 (xid=0x33313af4)
DHCPREQUEST of 192.168.0.100 on eth1 to 255.255.255.255 port 67 (xid=0x33313af4)
DHCPOFFER of 192.168.0.100 from 192.168.0.1
DHCPACK of 192.168.0.100 from 192.168.0.1
RTNETLINK answers: File exists
bound to 192.168.0.100 -- renewal in 34389 seconds.
sudo iwlist scan

代码： 全选

tiemann@Tiemann:~$ sudo iwlist scan
eth0      Interface doesn't support scanning.

eth1      Scan completed :
          Cell 01 - Address: B8:A3:86:A4:C6:90
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=70/70  Signal level=-11 dBm  
                    Encryption key:on
                    ESSID:"lastresot"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 00096C6173747265736F74
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 030101
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: 2D1A2C181EFF00000000000000000000000000000000000000000000
                    IE: Unknown: 3D1601001300000000000000000000000000000000000000
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
                    IE: Unknown: DD720050F204104A0001101044000102103B0001031047001063041253101920061228B8A386A4C6901021000010230011576972656C657373204E20526F75746572102400074449522D3530311042000D32303037303431332D303030311054000800060050F204000110110000100800020086
                    IE: Unknown: DD1E00904C332C181EFF00000000000000000000000000000000000000000000
                    IE: Unknown: DD1A00904C3401001300000000000000000000000000000000000000
                    IE: Unknown: DD0600E04C020160
          Cell 02 - Address: 28:CF:E9:63:A3:27
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=68/70  Signal level=-42 dBm  
                    Encryption key:on
                    ESSID:"Owen\xE7\x9A\x84MacBook Pro"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 00124F77656EE79A844D6163426F6F6B2050726F
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030101
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1AAD191BFFFFFF0000000000000000000000000000000000000000
                    IE: Unknown: 3D1601080000000000000000000000000000000000000000
                    IE: Unknown: DD1A0017F20900010D4D6163426F6F6B50726F392C32010103010000
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
          Cell 03 - Address: 7C:4F:B5:83:F2:26
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=41/70  Signal level=-69 dBm  
                    Encryption key:on
                    ESSID:"ALICE-WLAN92"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 000C414C4943452D574C414E3932
                    IE: Unknown: 010882848B961224486C
                    IE: Unknown: 030101
                    IE: Unknown: 32040C183060
                    IE: Unknown: 0706444520010D14
                    IE: Unknown: 33082001020304050607
                    IE: Unknown: 33082105060708090A0B
                    IE: Unknown: DD0E0050F204104A0001101044000102
                    IE: Unknown: 050400010000
                    IE: Unknown: 2A0104
                    IE: Unknown: 2D1A6E1017FF00000001000000000000000000000000000000000000
                    IE: Unknown: 3D1601050600000000000000000000000000000000000000
                    IE: Unknown: 7F0101
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : TKIP CCMP
                        Authentication Suites (1) : PSK
                       Preauthentication Supported
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
                    IE: Unknown: 0B0500010F7A12
                    IE: Unknown: DD1E00904C336E1017FF00000001000000000000000000000000000000000000
                    IE: Unknown: DD1A00904C3401050600000000000000000000000000000000000000
          Cell 04 - Address: 10:FE:ED:CD:71:E0
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=57/70  Signal level=-53 dBm  
                    Encryption key:on
                    ESSID:"TP-LEON CHL"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 000B54502D4C454F4E2043484C
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 030106
                    IE: Unknown: 2A0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32043048606C
                    IE: Unknown: 2D1AEF1103FFFF0000000000000000000000000000000406E6E70D00
                    IE: Unknown: 331AEF1103FFFF0000000000000000000000000000000406E6E70D00
                    IE: Unknown: 3D1606071100000000000000000000000000000000000000
                    IE: Unknown: 341606071100000000000000000000000000000000000000
                    IE: Unknown: DD180050F2020101830003A4000027A4000042435E0062322F00
                    IE: Unknown: DD0900037F01010000FF7F
                    IE: Unknown: DD990050F204104A0001101044000102103B00010310470010000102030405060708090A0B0C0D0E0F1021000754502D4C494E4B10230009544C2D57523834314E10240003382E3010420003312E301054000800060050F204000110110019576972656C65737320526F7574657220544C2D57523834314E100800020086103C000101104900140024E26002000101600000020001600100020001
          Cell 05 - Address: 00:1D:0F:4E:6E:58
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=50/70  Signal level=-60 dBm  
                    Encryption key:on
                    ESSID:"epison"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              12 Mb/s; 24 Mb/s; 36 Mb/s
                    Bit Rates:9 Mb/s; 18 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 14416ms ago
                    IE: Unknown: 0006657069736F6E
                    IE: Unknown: 010882848B960C183048
                    IE: Unknown: 030106
                    IE: Unknown: 0706434E20010D14
                    IE: Unknown: 2A0100
                    IE: Unknown: 32041224606C
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : TKIP CCMP
                        Authentication Suites (1) : PSK
                       Preauthentication Supported
                    IE: Unknown: DD0900037F01010008FF7F
                    IE: Unknown: DD1A00037F0301000000001D0F4E6E58021D0F4E6E5864002C010808
          Cell 06 - Address: 14:CF:92:42:B8:F4
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=48/70  Signal level=-62 dBm  
                    Encryption key:on
                    ESSID:"Gideon"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 0006476964656F6E
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 030106
                    IE: Unknown: 0706434E20010D14
                    IE: Unknown: 2A0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32043048606C
                    IE: Unknown: 2D1A6E1103FF00000000000000000000000000000000000000000000
                    IE: Unknown: 3D1606071100000000000000000000000000000000000000
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101830003A4000027A4000042435E0062322F00
                    IE: Unknown: DD1E00904C336E1103FF00000000000000000000000000000000000000000000
                    IE: Unknown: DD1A00904C3406071100000000000000000000000000000000000000
                    IE: Unknown: DD0900037F01010000FF7F
          Cell 07 - Address: 68:A8:6D:46:A3:12
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=46/70  Signal level=-64 dBm  
                    Encryption key:on
                    ESSID:"QuitJinx"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                              24 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 0008517569744A696E78
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 03010B
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1AAD191BFFFFFF0000000000000000000000000000000000000000
                    IE: Unknown: 3D160B080400000000000000000000000000000000000000
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
          Cell 08 - Address: 56:FD:52:4F:D2:85
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=62/70  Signal level=-48 dBm  
                    Encryption key:on
                    ESSID:"Connectify-miwifi"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 0011436F6E6E6563746966792D6D6977696669
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 03010B
                    IE: Unknown: 0706434E20010D14
                    IE: Unknown: 2A0102
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32043048606C
                    IE: Unknown: 2D1A2C0103FF00000000000000000000000000000000000000000000
                    IE: Unknown: 3D160B001500000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F080100000000000000
                    IE: Unknown: DD180050F20201010D0003A4000027A4000042435E0062322F00
                    IE: Unknown: DD1E00904C332C0103FF00000000000000000000000000000000000000000000
                    IE: Unknown: DD1A00904C340B001500000000000000000000000000000000000000
                    IE: Unknown: DD0900037F01010000FF7F
          Cell 09 - Address: 7A:A1:7C:03:31:F0
                    Channel:10
                    Frequency:2.457 GHz (Channel 10)
                    Quality=67/70  Signal level=-43 dBm  
                    Encryption key:on
                    ESSID:"samsung"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Ad-Hoc
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 000773616D73756E67
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 03010A
                    IE: Unknown: 06020000
                    IE: Unknown: 0706434E20010D14
                    IE: Unknown: 2A0100
                    IE: Unknown: 32043048606C
                    IE: Unknown: DD0900037F01010000FF7F
          Cell 10 - Address: 8A:03:9A:80:D4:9B
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=57/70  Signal level=-53 dBm  
                    Encryption key:on
                    ESSID:"Connectify-me"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 000D436F6E6E6563746966792D6D65
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 03010B
                    IE: Unknown: 0706434E20010D14
                    IE: Unknown: 2A0102
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32043048606C
                    IE: Unknown: 2D1A0C011BFF00000000000000000000000000000000000000000000
                    IE: Unknown: 3D160B001300000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F0101
                    IE: Unknown: DD180050F2020101040003A4000027A4000042435E0062322F00
                    IE: Unknown: DD1E00904C330C011BFF00000000000000000000000000000000000000000000
                    IE: Unknown: DD1A00904C340B001300000000000000000000000000000000000000
                    IE: Unknown: DD0900037F01010000FF7F
          Cell 11 - Address: 22:24:54:F4:8B:F5
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=43/70  Signal level=-67 dBm  
                    Encryption key:on
                    ESSID:"Connectify-Mirage"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                              9 Mb/s; 12 Mb/s; 18 Mb/s
                    Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                    Mode:Master
                    Extra:tsf=0000000000000000
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 0011436F6E6E6563746966792D4D6972616765
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 03010B
                    IE: Unknown: 0706434E20010D14
                    IE: Unknown: 2A0106
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32043048606C
                    IE: Unknown: 2D1A0C011BFF00000000000000000000000000000000000000000000
                    IE: Unknown: 3D160B001500000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F0101
                    IE: Unknown: DD180050F2020101080003A4000027A4000042435E0062322F00
                    IE: Unknown: DD1E00904C330C011BFF00000000000000000000000000000000000000000000
                    IE: Unknown: DD1A00904C340B001500000000000000000000000000000000000000
                    IE: Unknown: DD0900037F01010000FF7F

lo        Interface doesn't support scanning.
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poloshiao
论坛版主
帖子： 18279
注册时间： 2009-08-04 16:33

Re: 新手求助！这个问题折磨了我好几天了 求各路大神 前来 看下

#4

帖子 由 poloshiao » 2014-04-08 11:43

eth0 Link encap:Ethernet HWaddr 74:d0:2b:b1:bd:9e
inet addr:192.168.0.106 Bcast:192.168.0.255 Mask:255.255.255.0
eth1 Link encap:Ethernet HWaddr dc:85:de:7d:b2:ce
inet addr:192.168.0.100 Bcast:192.168.0.255 Mask:255.255.255.0
兩個網卡 除非設定 Bridging
https://help.ubuntu.com/12.04/servergui ... l#bridging
否則避免把 eth0 eth1 設定在 同一個 subnet 子網域
最好是 例如
eth0 192.168.1.106 子網域 192.168.1.0
eth1 192.168.0.100 子網域 192.168.0.0
sudo route -nv
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth1
192.168.0.0 0.0.0.0 255.255.255.0 U 9 0 0 eth1
ubuntu 預設 由 network manager 管理上網事宜
network manager 預設 同一時間 只有一個 route
所以當 eth1 的 路由 生效時
eth0 的 路由 會自動斷線
意思是 eth0 就不通
同樣 route eth0 通時
route eth1 就斷線
要兩者同時可以通 需要變更設定
sudo dhclient -v
DHCPDISCOVER on eth1 to 255.255.255.255 port 67 interval 3 (xid=0x33313af4)
DHCPREQUEST of 192.168.0.100 on eth1 to 255.255.255.255 port 67 (xid=0x33313af4)
DHCPOFFER of 192.168.0.100 from 192.168.0.1
DHCPACK of 192.168.0.100 from 192.168.0.1
RTNETLINK answers: File exists
bound to 192.168.0.100 -- renewal in 34389 seconds.
無線網卡 eth1 與 路由 (gateway) 192.168.0.1
連上線 是沒問題的

1. 你沒有提供 舊電腦 的資訊

2. 建議
先將 eth0 斷線 或 關閉 以免它來搗亂
看看 eth0 關閉後 eth1 能否 ssh 到 学校网络
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tiemanntan
帖子： 8
注册时间： 2013-12-06 7:07
系统： ubuntu 13.10

Re: 新手求助！这个问题折磨了我好几天了 求各路大神 前来 看下

#5

帖子 由 tiemanntan » 2014-04-08 14:37

1. 你沒有提供 舊電腦 的資訊

2. 建議
先將 eth0 斷線 或 關閉 以免它來搗亂
看看 eth0 關閉後 eth1 能否 ssh 到 学校网络

谢谢 我尽快尝试下 您的建议 等会还请您在 指导下 :em02
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tiemanntan
帖子： 8
注册时间： 2013-12-06 7:07
系统： ubuntu 13.10

Re: 新手求助！这个问题折磨了我好几天了 求各路大神 前来 看下

#6

帖子 由 tiemanntan » 2014-04-10 5:04

無線網卡 eth1 與 路由 (gateway) 192.168.0.1
連上線 是沒問題的

1. 你沒有提供 舊電腦 的資訊

2. 建議
先將 eth0 斷線 或 關閉 以免它來搗亂
看看 eth0 關閉後 eth1 能否 ssh 到 学校网络
[/quote]

大神eth0 关闭后 依然是这样。

最近碰到了个新问题 ，请您指教，无论是有线 还是 无线连接， ifconfig里面 流量上行下行数据 只出现在eth1里， 即使是有线链接，依然如此
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poloshiao
论坛版主
帖子： 18279
注册时间： 2009-08-04 16:33

Re: 新手求助！这个问题折磨了我好几天了 求各路大神 前来 看下

#7

帖子 由 poloshiao » 2014-04-10 8:58

eth0 关闭后 依然是这样。
无论是有线 还是 无线连接， ifconfig里面 流量上行下行数据 只出现在eth1里， 即使是有线链接
1. 先把 原來的 HWaddr 記錄下來 (或稱 MAC)
sudo ifconfig -a
eth0 Link encap:Ethernet HWaddr 74:d0:2b:b1:bd:9e
eth1 Link encap:Ethernet HWaddr dc:85:de:7d:b2:ce
2. 把 /etc/udev/rules.d/70-persistent-net.rules 內容清空
按一下 alt + F2
輸入 gksudo gedit /etc/udev/rules.d/70-persistent-net.rules
把內容全部清空
儲存
2-1. 如果你是第一次使用 gksudo 需要先安裝 gksu 套件
3. 把 有線網卡 從 Bios 關閉
4. 重新開機後
把下面指令 複製 貼進終端機 執行
4-1. sudo lshw -numeric -class network
4-2. sudo ifconfig -a
4-3. sudo route -nv
4-4. sudo dhclient -v
4-5. sudo iwlist scan
把結果直接複製 貼上
http://paste.ubuntu.com
再把回應網址貼上來
5. 上述目的 是排除 有線網卡 的因素 測試 無線網卡
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tiemanntan
帖子： 8
注册时间： 2013-12-06 7:07
系统： ubuntu 13.10

Re: 新手求助！这个问题折磨了我好几天了 求各路大神 前来 看下

#8

帖子 由 tiemanntan » 2014-04-11 7:54

大神， 我上次描述 似乎有点错误，我今天发现是 有线介入后，可以正常SSH链接到服务器上网，但是在ifconfig里eth0 没有流量，eth1几乎没有流量变动！。

无线状态下 即使链接上wifi 依然不能上网，而且打不开路由器配置页面。 不知道，是不是需要我还提供别的信息 :em01


我已经做好了，到处所有资料重装的准备，过去几台电脑都没碰到过这样的情况 是硬件问题吗？
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