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以太网在 Ubuntu 18.04.5 LTS 上不起作用

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以太网在 Ubuntu 18.04.5 LTS 上不起作用

我的以太网电缆不再被识别，无论是在网络（工作还是家庭）上。 ifconfig

enp0s31f6: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        ether 54:e1:ad:b5:f1:63  txqueuelen 1000  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0
        device interrupt 16  memory 0xec200000-ec220000  

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 6261  bytes 596363 (596.3 KB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 6261  bytes 596363 (596.3 KB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

wlp4s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 10.111.35.119  netmask 255.255.252.0  broadcast 10.111.35.255
        inet6 fe80::ba41:664a:2235:d79a  prefixlen 64  scopeid 0x20<link>
        inet6 2001:700:200:f132:525b:e148:8c18:17d3  prefixlen 64  scopeid 0x0<global>
        inet6 2001:700:200:f132::13bb  prefixlen 128  scopeid 0x0<global>
        inet6 2001:700:200:f133:356d:2dde:4ce:2297  prefixlen 64  scopeid 0x0<global>
        ether bc:a8:a6:9a:c7:84  txqueuelen 1000  (Ethernet)
        RX packets 106167  bytes 123265102 (123.2 MB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 26746  bytes 6175687 (6.1 MB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

我已经尝试摆弄sudo vi 10-globally-managed-devices.conf sudo service network-manager restart

的内容sudo vi /etc/network/interfaces是

iface enp0s31f6 inet loopback

尝试sudo ifdown enp0s31f6过sudo ifup enp0s31f6

答案1

the content of the sudo vi /etc/network/interfaces is

iface enp0s31f6 inet loopback

请将文件更改为：

auto lo
iface lo inet loopback

重新启动并告诉我们是否有任何改进。

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