我最近安装了 Ubuntu 12.04。现在无法访问互联网(有线)。我尝试了更新 IP 地址等方法,但似乎不起作用。它可以识别局域网电缆是否插入,但我仍然无法访问互联网。任何帮助都将不胜感激。
以下是命令的输出:
$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:0f:fe:59:71:3e
inet6 addr: fe80::20f:feff:fe59:713e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:1682 errors:0 dropped:0 overruns:0 frame:0
TX packets:389 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:139639 (139.6 KB) TX bytes:102684 (102.6 KB)
Interrupt:19 Memory:f0400000-f0420000
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:16436 Metric:1
RX packets:2688 errors:0 dropped:0 overruns:0 frame:0
TX packets:2688 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:219840 (219.8 KB) TX bytes:219840 (219.8 KB)
$ route -n
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
$ lspci -nnk | grep -iEA3 "(network|ethernet)"
00:19.0 Ethernet controller [0200]: Intel Corporation 82566DM Gigabit Network Connection [8086:104a] (rev 02)
Subsystem: Hewlett-Packard Company Device [103c:2800]
Kernel driver in use: e1000e
Kernel modules: e1000e
答案1
类型Ctrl+Alt+T
和类型echo on | sudo tee /sys/class/net/eth0/device/power/control
之后,注销你的机器,拔出以太网电缆,然后在登录后重新插入。这应该有效