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Tags: networking   internet   ethernet   vnstat  
Link: πŸ” See Original Answer on Ask Ubuntu πŸ”—

URL: https://askubuntu.com/q/1035548
Title: How to tell if Ubuntu is using WiFi or Ethernet
ID: /2018/05/13/How-to-tell-if-Ubuntu-is-using-WiFi-or-Ethernet
Created: May 13, 2018    Edited:  May 13, 2018
Upload: November 24, 2022    Layout:  post
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Ubuntu will use both your Wireless and your Ethernet at the same time. I use a program called vnstat for Internet traffic monitoring:

$ vnstat

                      rx      /      tx      /     total    /   estimated
 wlp60s0:
       Apr '18     20.83 GiB  /    1.55 GiB  /   22.38 GiB
       May '18      4.33 GiB  /    5.34 MiB  /    4.34 GiB  /   11.36 GiB
     yesterday    404.97 MiB  /     509 KiB  /  405.47 MiB
         today    593.05 MiB  /     773 KiB  /  593.80 MiB  /      --    

 enp59s0:
       Apr '18    206.79 GiB  /   56.90 GiB  /  263.69 GiB
       May '18     63.19 GiB  /   13.34 GiB  /   76.53 GiB  /  200.60 GiB
     yesterday      6.73 GiB  /  817.44 MiB  /    7.53 GiB
         today      4.03 GiB  /  376.32 MiB  /    4.39 GiB  /    5.31 GiB

Today the WiFi (wlp60s0) has sent/received 593 MB and Ethernet (enp59s0) has sent/received 4.39 GB.

To setup vnstat see this Q&A: How to track the total network data in a month


You don’t have to tell Ubuntu to use Ethernet over Wifi because it automatically uses the fastest connection. The exception being if your Ethernet is 100 Mbps and your WiFi is faster than 300 Mbps. In this case the WiFi would take precedence.

If your WiFi is faster than your Ethernet click the Up/Down arrow representing network connection in the Systray. From the drop down menu disable the WiFi link by clicking disconnect button. You can also disable the Ethernet link from the same drop down menu.

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