Switching off IPv6

[Xde]

Hello,
usually system preferences has no ability to switch IPv6 off.

With terminal it is possible using
networksetup -setv6off Ethernet
and/or
networksetup -setv6off Wi-Fi

Now, in network system preferences in TCPIP there is an OFF selector in the pulldown menu.

But when one makes changes later in network setup, the selector changes back to normal ON state
and wipes the off option again.
Is there a way, to get this OFF option permanent?

Remark: some system services may need IPv6

Edit: 10.9.5 here

 

[KALLT]

I am not sure I understand. IPv6 is not permanently disabled?

 

[Xde]

IPv6 is always enabled. Usually you have automatic in the selector.
Check system prefs, Network, TCP/IP.
Terminal can set it OFF, but the "new" pull down menu selector is not permanent once you make changes.

 

[KALLT]

I know that you can turn it off, I did not understand your particular problem. Yes, the GUI has no option to turn it off. I assume that this is intentional. Why do you want to turn it off in the first place?

 

[Xde]

OK, I have a network problem here, Router and Rasperry Pihole.
Maybe the router is something to do with that. Its not a specially good one.
I tried to disable v6 and voila problem was gone.
Me question was only, if there is a way to permanently enable the "off"-option in the menu.
Probably not.

 

[KALLT]

It does not look like it. If you do need to tweak the settings frequently, I recommend you set up a new ‘location’ in the network settings. You can have completely separate network settings and switch between these profiles on-demand.

 

[Xde]

Ok, thank you Kallt.
I am still in work with the problems on the Router and Pihole side.
I would prefer to not change the standard settings, hope to get it running soon...

 

[Yahooligan]

"Link-local" is about as close as you're going to get, which will limit IPv6 to the local network. Have you tried that to see if the problem goes away?

 

[Xde]

O, thanks for the information! I haven't seen your reply.
I changed the IPv6 setting back to normal, to not break any OS inside service.
And I solved the problem within the router.
My DHCP router has an IPv6 local "ULA" setting. Unique Local Addresses
I transferred the Ip address to the Pihole and the problem was gone.
Thanks anyway...