无法通过以太网（使用pppoe）连接到互联网，虽然它可以通过Wi-Fi工作
我正在使用Ubuntu 16.04，我无法通过以太网连接到互联网。我能够通过无线网络连接。我也使用Windows 10的双启动，我可以使用pppoe连接在Windowsm上通过这两种方法连接来实现它通过以太网。
$ ifconfig enp4s0f1 Link encap:Ethernet HWaddr d0:17:c2:07:ef:39 inet6 addr: fe80::e67d:6fbb:5a45:c0f2/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:475 errors:0 dropped:0 overruns:0 frame:0 TX packets:874 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:58686 (58.6 KB) TX bytes:158070 (158.0 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:841 errors:0 dropped:0 overruns:0 frame:0 TX packets:841 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1 RX bytes:91232 (91.2 KB) TX bytes:91232 (91.2 KB) wlp3s0 Link encap:Ethernet HWaddr 74:c6:3b:11:3e:f7 inet addr:192.168.185.101 Bcast:192.168.185.255 Mask:255.255.255.0 inet6 addr: fe80::8d65:aaae:789a:fab8/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:422545 errors:0 dropped:0 overruns:0 frame:0 TX packets:170091 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:627525820 (627.5 MB) TX bytes:17005893 (17.0 MB) 这是我的/ etc / network / interfaces文件的内容：
# interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback
运行iwconfig的结果：
`enp4s0f1 no wireless extensions. lo no wireless extensions. wlp3s0 IEEE 802.11bgn ESSID:"...." Mode:Managed Frequency:2.462 GHz Access Point: 82:B9:A5:DB:36:8F Bit Rate=65 Mb/s Tx-Power=16 dBm Retry short limit:7 RTS thr:off Fragment thr:off Power Management:off Link Quality=63/70 Signal level=-47 dBm Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0 Tx excessive retries:3 Invalid misc:342 Missed beacon:0.
lspci -nnk |的结果 grep -iEA3“（网络|无线|以太网）”
03:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01) Subsystem: AzureWave QCA9565 / AR9565 Wireless Network Adapter [1a3b:2130] Kernel driver in use: ath9k Kernel modules: ath9k 04:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device [10ec:5287] (rev 01) -- 04:00.1 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 12) Subsystem: ASUSTeK Computer Inc. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [1043:200f] Kernel driver in use: r8169 Kernel modules: r8169
cat /etc/dhcp/dhclient.conf的结果
# Configuration file for /sbin/dhclient. # # This is a sample configuration file for dhclient. See dhclient.conf's # man page for more information about the syntax of this file # and a more comprehensive list of the parameters understood by # dhclient. # # Normally, if the DHCP server provides reasonable information and does # not leave anything out (like the domain name, for example), then # few changes must be made to this file, if any. # option rfc3442-classless-static-routes code 121 = array of unsigned integer 8; send host-name = gethostname(); request subnet-mask, broadcast-address, time-offset, routers, domain-name, domain-name-servers, domain-search, host-name, dhcp6.name-servers, dhcp6.domain-search, dhcp6.fqdn, dhcp6.sntp-servers, netbios-name-servers, netbios-scope, interface-mtu, rfc3442-classless-static-routes, ntp-servers; #send dhcp-client-identifier 1:0:a0:24:ab:fb:9c; #send dhcp-lease-time 3600; #supersede domain-name "fugue.com home.vix.com"; #prepend domain-name-servers 127.0.0.1; #require subnet-mask, domain-name-servers; timeout 300; #retry 60; #reboot 10; #select-timeout 5; #initial-interval 2; #script "/sbin/dhclient-script"; #media "-link0 -link1 -link2", "link0 link1"; #reject 192.33.137.209; #alias { # interface "eth0"; # fixed-address 192.5.5.213; # option subnet-mask 255.255.255.255; #} #lease { # interface "eth0"; # fixed-address 192.33.137.200; # medium "link0 link1"; # option host-name "andare.swiftmedia.com"; # option subnet-mask 255.255.255.0; # option broadcast-address 192.33.137.255; # option routers 192.33.137.250; # option domain-name-servers 127.0.0.1; # renew 2 2000/1/12 00:00:01; # rebind 2 2000/1/12 00:00:01; # expire 2 2000/1/12 00:00:01; #}
我尝试了各种方法，我在网上找到了解决这个问题，如添加auto enp4s0f1 iface enp4s0f1 ，忽略IPv6， sudo service network-manager restart 。 我最近重新安装了Ubuntu。 我已经测试了来自不同路由器的多个以太网电缆，但没有工作。 如上所述它在Windows上运行得很好。
编辑：以下是sudo dhclient -v -r和sudo dhclient -v
~$ sudo dhclient -v -r enp4s0f1 Killed old client process Internet Systems Consortium DHCP Client 4.3.3 Copyright 2004-2015 Internet Systems Consortium. All rights reserved. For info, please visit https:*no space for this link :D* Listening on LPF/enp4s0f1/d0:17:c2:07:ef:39 Sending on LPF/enp4s0f1/d0:17:c2:07:ef:39 Sending on Socket/fallback ~$ sudo dhclient -v enp4s0f1 Internet Systems Consortium DHCP Client 4.3.3 Copyright 2004-2015 Internet Systems Consortium. All rights reserved. For info, please visit https://www.isc.org/software/dhcp/ Listening on LPF/enp4s0f1/d0:17:c2:07:ef:39 Sending on LPF/enp4s0f1/d0:17:c2:07:ef:39 Sending on Socket/fallback DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 3 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 7 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 16 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 19 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 21 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 16 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 21 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 7 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 9 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 11 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 11 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 11 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 16 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 10 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 15 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 14 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 14 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 21 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 20 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 19 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 8 (xid=0x9dffd378) DHCPDISCOVER on enp4s0f1 to 255.255.255.255 port 67 interval 12 (xid=0x9dffd378) No DHCPOFFERS received. No working leases in persistent database - sleeping.
关于我的互联网状态的图像（来自网络管理员）： http ： //imgur.com/a/YM52e
我是Linux新手，我无法解决这个问题。 如果可能，请提供详细的答案。 谢谢！
您的以太网端口正在使用的r8169驱动程序是错误的。 您需要使用r8168-dkms驱动程序。
要安装它，请从Unity破折号启动Synaptic。 单击RELOAD图标，然后单击SEARCH图标，在结果窗格中输入r8168-dkms ，将此项目标记为install，单击APPLY图标。 如果它想要/还需要安装dkms ，请批准它。
您可能还希望了解如何使用有线PPPOE连接连接到互联网？ 了解更多信息。
让我们知道你是怎么做的。 干杯，Al
enp4s0f1（有线接口）在wlp3s0（无线接口）时没有IP4地址。 也许这是你困难的根源。
请注意，此答案不是版本/驱动程序特定的。 使用atl1c驱动程序在14.04下测试，在r8169驱动程序下测试16.04
首先确保网络管理器设置为接收IP4地址：打开网络连接选择以太网连接，然后单击编辑。 根据需要进行更改，使其在IPV4设置选项卡上显示如下：方法是重要部分（复选框也不会受到影响）
单击“保存”，然后单击“关闭” – 然后在终端中发出以下命令
sudo dhclient -v -r enp4s0f1 sudo dhclient -v enp4s0f1
作为替代方法，您可以将方法更改为手动并使用192.168.185.xforms的静态IP地址（其中x是网络上的地址，而不是由路由器dhcp池提供）
资料来源：
http://www.cyberciti.biz/faq/howto-linux-renew-dhcp-client-ip-address/
测试