PreferredLIfetime=0 appears to not work in Ubuntu 18.04 systemd networking

[Karl Auer]

On Sat, 2020-01-11 at 16:51 -0500, Ben Coleman wrote:
> I've got some Ubuntu 18.04 servers where they have 2 different IPv6
> addresses, and I want one to be used when making outgoing
> connections.
> From what I've been able to dig up, the way to do this is to set the
> Preferred Lifetime of the unwanted address to 0.

This article is quite old but may still give you some useful clues:

https://into6.com.au/2013/03/25/source-address-selection-what-why-how/


Regards, K.

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Karl Auer (kauer at biplane.com.au)
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