Add more logic to set interfaces ethernet address ip/dhcp

[tom]

Good afternoon

If an interface has got a fixed address (set interfaces ethernet eth1 address ‘192.168.0.1/24’) and some time later one would like to change it to dhcp (set interfaces ethernet eth0 address dhcp) then the user gets:

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

Of course, that’s true.
Why does VyOS not automatically remove the static IP-Address (or asks for it or give some hint how to remove the static addess)?

Kind regards,
Tom

[carl.byington]

@tom++

Why does VyOS not automatically remove the static IP-Address (or asks for it or give some hint how to remove the static addess)?

There are MANY other cases of mutually incompatible configuration settings. A design assumption in the UI is that the operator has read the documentation, including

delete interfaces ethernet eth1 address ...

[tom]

Hi carl.byington

Thanks for your answer!, I’ve read the manual, but the delete-command has no example - it’s just mentioned as a note:

Because configuration changes are made using set and delete commands, the commands to generate the active configuration can also be displayed using the show configuration commands command.

and therefore I probably did not “internalized” it.

There are MANY other cases of mutually incompatible configuration settings.

Yes - and many of them are probably already checked on commit…
and I assume, that many of the checks know the solution but just explain what’s wrong - and not how to solve it.

It was just an idea.

Thanks a lot for your help with the delete-command!,
kind regards,
Tom

[pirateghost]

@tom++

Hi carl.byington

Thanks for your answer!, I’ve read the manual, but the delete-command has no example - it’s just mentioned as a note:

Because configuration changes are made using set and delete commands, the commands to generate the active configuration can also be displayed using the show configuration commands command.

and therefore I probably did not “internalized” it.

There are MANY other cases of mutually incompatible configuration settings.

Yes - and many of them are probably already checked on commit…
and I assume, that many of the checks know the solution but just explain what’s wrong - and not how to solve it.

It was just an idea.

Thanks a lot for your help with the delete-command!,
kind regards,
Tom

From the VYATTA_QUICKSTART_GUIDE Page 36, Chapter 5:

Delete a configuration node: vyatta@vyatta# delete interfaces ethernet eth0 address 192.0.2.21/24