PC connected to wifi, can I connect another PC to that ethernet?

Have a PC connected via WiFi to the internet - works fine.
Is there any way you can then plug an ethernet cable from THAT PC, to another, to give internet access to the second PC?
Thanks.

@hornetster:

How does the WiFi WLAN connect to the Internet?

  • By magic?
  • By means of a Router?
  • By means of a 5G mobile Telephone?
  • Are you connecting to the Internet by means of your neighbour’s WiFi WLAN?
  • Is the WiFi WLAN part of a communal LAN?
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There are different ways to achive your goal. A quick internet search shows several ways and easy solutions (one only need to use a search engine). @dcurtisfra tried to shrink down the number of results by finding out what you really want or need.

There’s also the openSUSE documentation:

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Please be aware that, using a “normal” computing device as a router can lead to unexpected performance issues.


I’m writing this with a Laptop connected via Wi-Fi 6 ( 5 GHz - 1,7 Gbit/s) on the 2nd of two WLAN Repeaters in a Mesh configuration which extends the WLAN (currently Wi-Fi 6 - the DSL Router can handle WiFi 7 but, the Repeaters not yet). The DSL connection is 100 Mbit/s downlink and 37 Mbit/s uplink.

DSL tests from this Laptop are giving the following results -

N.B.: mostly German numbers - the decimal point is a “,” - the thousands separator is a “.” …



Bottom line: network performance is usually only achievable with dedicated network devices such as WLAN Repeaters.
Attempting to use a Laptop as a network Router can result in disappointing network performance.

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BTW, I forgot to mention that, most currently available WLAN Repeaters have a 1 Gbit/s Ethernet port – a few have a 2.5 Gbit/s Ethernet port.

  • A WLAN Repeater is an easy method to extend an Ethernet LAN to areas where it’s not desirable to wire the location with physical Ethernet cable …
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