我正在尋找從wifi轉移到乙太網。我的電腦是聯想 Thinkpad Carbon Gen II。這台電腦沒有乙太網埠。您必須依靠加密狗。我仍然擁有電腦附帶的那個（看起來像這樣）。因為我的時間久了有點損壞。今天，我在亞馬遜上買了一個新的（USB 轉 rj45 適配器）。我找不到讓它工作的方法。歡迎任何幫助。

主機名結束：

Operating System: Manjaro Linux
Kernel: Linux 4.4.83-1-MANJARO
Architecture: x86-64

ifconfig enp0s25 的輸出：

enp0s25: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 54:ee:75:96:39:28 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 20 memory 0xf0500000-f0520000

lspci的輸出：

00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 09)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 09)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:19.0 Ethernet controller: Intel Corporation Ethernet Connection I218-V (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 6 (rev e4)
00:1c.1 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
03:00.0 Network controller: Intel Corporation Wireless 7260 (rev 83)

lsusb的輸出：

Bus 003 Device 003: ID 04ca:7036 Lite-On Technology Corp.
Bus 003 Device 002: ID 8087:8000 Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 006: ID 1058:107c Western Digital Technologies, Inc. Elements Desktop (WDBWLG)
Bus 002 Device 005: ID 0bc2:a0a4 Seagate RSS LLC Backup Plus Desktop Drive
Bus 002 Device 004: ID 0bc2:a0a4 Seagate RSS LLC Backup Plus Desktop Drive
Bus 002 Device 003: ID 05e3:0616 Genesys Logic, Inc. hub
Bus 002 Device 002: ID 05e3:0616 Genesys Logic, Inc. hub
Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 007: ID 8087:07dc Intel Corp.
Bus 001 Device 005: ID 138a:0017 Validity Sensors, Inc. Fingerprint Reader
Bus 001 Device 003: ID 04d9:0169 Holtek Semiconductor, Inc.
Bus 001 Device 009: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 001 Device 004: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 002: ID 05e3:0610 Genesys Logic, Inc. 4-port hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

為了測試連接是否正常工作：

ifconfig enp0s25 up（這將啟用您的網路介面/加密狗）

dhcpcd （這會啟動一個 dhcp 客戶端以獲取 IP 地址）

當這可行時，您可以轉向更永久和更方便的解決方案：

例如，您可以使用 netctl 來自動連接。你必須做的：

• 在其中創建個人資料/etc/netctl/my_dhcp_profile或以您喜歡的方式為其命名；您也可以創建多個。如：

Interface=enp0s25
Connection=ethernet
IP=dhcp

或（靜態 IP）：

Interface=enp0s25
Connection=ethernet
IP=static
Address=('10.1.10.2/24')
Gateway=('10.1.10.1')
DNS=('10.1.10.1')

• 啟用配置文件：

netctl enable my_dhcp_profile
netctl start my_dhcp_profile

之後，它將在可用時自動啟動，不需要進一步互動。start基本上是現在啟動它而不是在重新啟動後啟動它所必需的。您也可以使用stop手動停用它。

引用自：https://unix.stackexchange.com/questions/388720