How to change from dhcp to fixed address (or vice versa)?

Good afternoon

if an interface was configured to a fix address (e.g. set interfaces ethernet eth1 address ‘’) and one would like to change to dhcp (set interfaces ethernet eth0 address dhcp) one gets:

Can’t configure static IPv4 address and DHCP on the same interface.

How can we remove the static IP Address?
(Or the other way round: how can we remove an active DHCP on an interface to assign a static IP Address?

Thanks a lot for any help!,
kind regards,

just delete the fixed address.

delete interfaces ethernet eth1 address
set interfaces ethernet eth1 address dhcp

or the reverse.


ouch…, thank you very much!!, I’ve tried many other things…

Kind regards,

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