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升级到 Ubuntu 16.04 后有线连接到 LAN 但没有互联网

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升级到 Ubuntu 16.04 后有线连接到 LAN 但没有互联网

升级到 Ubuntu 16.04 后，我有线连接到 LAN，但没有互联网。无线连接工作正常。

    ifconfig -a
eth0      Link encap:Ethernet  HWaddr b8:2a:72:be:81:8b  
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:832 errors:0 dropped:0 overruns:0 frame:0
          TX packets:612 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:81397 (81.3 KB)  TX bytes:50754 (50.7 KB)

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:298 errors:0 dropped:0 overruns:0 frame:0
          TX packets:298 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:29634 (29.6 KB)  TX bytes:29634 (29.6 KB)

wlan0     Link encap:Ethernet  HWaddr 9c:ad:97:02:78:e7  
          inet addr:10.145.160.47  Bcast:10.145.255.255  Mask:255.255.128.0
          inet6 addr: fe80::9ead:97ff:fe02:78e7/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1093 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1097 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:758982 (758.9 KB)  TX bytes:153922 (153.9 KB)

连接到有线连接后

    ifconfig -a
eth0      Link encap:Ethernet  HWaddr b8:2a:72:be:81:8b  
          inet addr:192.168.0.104  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::ba2a:72ff:febe:818b/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:925 errors:0 dropped:0 overruns:0 frame:0
          TX packets:724 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:92209 (92.2 KB)  TX bytes:62148 (62.1 KB)

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:805 errors:0 dropped:0 overruns:0 frame:0
          TX packets:805 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:104784 (104.7 KB)  TX bytes:104784 (104.7 KB)

wlan0     Link encap:Ethernet  HWaddr 9c:ad:97:02:78:e7  
          BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:5832 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5546 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:2508410 (2.5 MB)  TX bytes:876197 (876.1 KB)

答案1

我遇到了完全相同的问题，发现就我而言，是内核需要更新。

首先下载软件包。这个适用于 64 位。

$ wget kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc2/linux-headers-4.9.0-040900rc2_4.9.0-040900rc2.201610232131_all.deb

$ wget kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc2/linux-headers-4.9.0-040900rc2-generic_4.9.0-040900rc2.201610232131_amd64.deb

$ wget kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc2/linux-image-4.9.0-040900rc2-generic_4.9.0-040900rc2.201610232131_amd64.deb

接下来，安装软件包。

$ sudo dpkg -i 'linux-headers-4.9*.deb' 'linux-image-4.9*.deb'

最后，重新启动。

sudo reboot

这是适用于 32 位机器的软件包。

$ wget kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc2/linux-headers-4.9.0-040900rc2_4.9.0-040900rc2.201610232131

$ wget kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc2/linux-headers-4.9.0-040900rc2-generic_4.9.0-040900rc2.201610232131_i386.deb

$ wget kernel.ubuntu.com/~kernel-ppa/mainline/v4.9-rc2/linux-image-4.9.0-040900rc2-generic_4.9.0-040900rc2.201610232131_i386.deb

安装软件包。

$ sudo dpkg -i 'linux-headers-4.9*.deb' 'linux-image-4.9*.deb'

重启。

sudo reboot

如果这不起作用，您可以使用此代码卸载：

sudo apt-get remove 'linux-headers-4.9*' 'linux-image-4.9*'

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