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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

http://forum.ubuntu.com.cn/viewtopic.php?t=457587

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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

发表于 ： 2014-04-08 1:30
由 tiemanntan
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！

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

发表于 ： 2014-04-08 5:37
由 poloshiao
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

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

发表于 ： 2014-04-08 6:28
由 tiemanntan
: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.

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

发表于 ： 2014-04-08 11:43
由 poloshiao
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

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

发表于 ： 2014-04-08 14:37
由 tiemanntan
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

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

发表于 ： 2014-04-10 5:04
由 tiemanntan
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

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

发表于 ： 2014-04-10 8:58
由 poloshiao
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

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

发表于 ： 2014-04-11 7:54
由 tiemanntan
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？
所有显示的时间为 UTC+08:00
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