On Thu, 26 Sep 2019 at 20:11, Dan Streetman <dan.street...@canonical.com> wrote:
>
> So, am I understanding right that such a system will have two ethernet
> interfaces with identical mac addresses?  Isn't that an obvious problem
> that should be fixed instead?

Digging into this, It seems that it is an explicitly supported
configuration that was added in 2016
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1579984

Ie. the dock copies the MAC address of the laptop, such that the same
lease is still usable.

Thus the timeouts now observed, are a regression of said feature.

-- 
Regards,

Dimitri.

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https://bugs.launchpad.net/bugs/1843381

Title:
  Dell system takes a long time to connect network with external dock

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