恢复后有线连接不工作

恢复后有线连接不工作

我正在使用 Ubuntu 15.10,遇到了一些有线连接问题。使用 grub 后,使用启用了网络的 Ubuntu 恢复选项弄乱了我的有线连接设置。

使用:

ifconfig eth0 up

返回:

eth0: ERROR while getting interface flags: No such device

使用:

dmesg | grep eth

返回:

[ 2.073397] usbcore: registered new interface driver cdc_ether
[ 2.215551] r8152 2-1:1.0 eth0: v1.08.1 (2015/07/28)
[ 3.237153] r8152 2-1:1.0 enx9cebe8261253: renamed from eth0
[ 69.963790] r8152 2-1:1.0 eth0: v1.08.1 (2015/07/28)
[ 71.017553] r8152 2-1:1.0 enx9cebe8261253: renamed from eth0
[ 195.797143] r8152 2-1:1.0 eth0: v1.08.1 (2015/07/28)
[ 196.861909] r8152 2-1:1.0 enx9cebe8261253: renamed from eth0
[ 229.932958] r8152 2-1:1.0 eth0: v1.08.1 (2015/07/28)
[ 230.981139] r8152 2-1:1.0 enx9cebe8261253: renamed from eth0

无线连接仍然正常工作。我使用的是笔记本电脑(华硕 UX305FA),所以我的有线连接是通过 USB 转以太网适配器进行的。有线连接开箱即用,使用全新安装的适配器即可工作。如果能就如何解决此问题提供帮助,我将不胜感激。

编辑:

ip link

返回:

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: wlp2s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc mq state UP mode DORMANT group default qlen 1000
link/ether 5c:e0:c5:1b:e0:bd brd ff:ff:ff:ff:ff:ff
4: enx9cebe8261253: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
link/ether 9c:eb:e8:26:12:53 brd ff:ff:ff:ff:ff:ff

请注意,数字 3 丢失了,我认为数字 3 曾经是我原来的有线连接,但是当我插入以太网电缆时它不再被识别。

/etc/udev/rules.d/10-network.rules

没有这个文件,我是否要创建一个包含行的新文件?

SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="10:c3:7b:4e:1d:6a″,KERNEL=="enp3s0″, NAME="eth0″

编辑2:

ifconfig enx9cebe8261253

返回:

enx9cebe8261253 Link encap:Ethernet  HWaddr 9c:eb:e8:26:12:53  
                inet addr:10.250.29.214  Bcast:10.250.29.255  Mask:255.255.255.0
                inet6 addr: fe80::9eeb:e8ff:fe26:1253/64 Scope:Link
                UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
                RX packets:52 errors:0 dropped:0 overruns:0 frame:0
                TX packets:183 errors:0 dropped:0 overruns:0 carrier:0
                collisions:0 txqueuelen:1000 
                RX bytes:3866 (3.8 KB)  TX bytes:18573 (18.5 KB)

和无线网络

ifconfig wlp2s0

返回:

wlp2s0    Link encap:Ethernet  HWaddr 5c:e0:c5:1b:e0:bd  
          inet addr:192.168.43.247  Bcast:192.168.43.255  Mask:255.255.255.0
          inet6 addr: fe80::5ee0:c5ff:fe1b:e0bd/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:306366 errors:0 dropped:0 overruns:0 frame:0
          TX packets:80425 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:427480060 (427.4 MB)  TX bytes:10062427 (10.0 MB)

看起来几乎一模一样,但无线可用,有线不可用

答案1

尝试:

ip link

我的输出:

alex@IT-CROWD:/etc/udev/rules.d$ ip link
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default 
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: enp3s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP mode DEFAULT group default qlen 1000
    link/ether 10:c3:7b:4e:1d:6a brd ff:ff:ff:ff:ff:ff
3: vmnet1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether 00:50:56:c0:00:01 brd ff:ff:ff:ff:ff:ff
4: vmnet8: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UNKNOWN mode DEFAULT group default qlen 1000
    link/ether 00:50:56:c0:00:08 brd ff:ff:ff:ff:ff:ff

并且您可以通过使用 udev 规则手动定义名称来更改设备名称(如果文件不存在则创建):

/etc/udev/rules.d/10-network.rules

添加以下行,并且不要忘记将 MAC 和 KERNEL 更改为您的 MAC 和 KERNEL:

SUBSYSTEM=="net", ACTION=="add", ATTR{address}=="10:c3:7b:4e:1d:6a″,KERNEL=="enp3s0″, NAME="eth0″

这些规则将在启动时自动应用。

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