You have been subscribed to a public bug:
I'd like to configure two wired connections: One to the outside world
via DHCP, the other shared to other computers.
When attempting this, unpredictable behavior happens: the two wired
connections are conflated with each other.
Doing this with a wired connection and wireless works without problemms.
Ubuntu desktop 20.04 LTS.
I was able to get it to work after playing with netplan for a while and
getting it almost right,giving up on that, deleting all network
interfaces, and starting over.
Configuration:
Dell G7 laptop (one ethernet connector) is configured as IPv4 "shared to other
computers" (A private network), IPv6 disabled.
J5create USB 3.0 to gigabit adapter is configured as IPv4 Automatic (DHCP),
IPv6 disabled.
This didn't work initially -- clicking on the wired connector would
sometimes bring up the USB adapter and vice versa. The approach that
did work was to delete all networking and reenter from scratch.
** Affects: gnome-control-center (Ubuntu)
Importance: Undecided
Status: New
** Tags: focal
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Using gnome-control-center to configure two wired connections is unreliable
https://bugs.launchpad.net/bugs/1901060
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Packages, which is subscribed to gnome-control-center in Ubuntu.
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