Comments on: How to disable IPv6 on Mac

By: MC

MC — Sun, 04 Dec 2022 11:40:19 +0000

In reply to Michael. sudo networksetup -setv6off "Thunderbolt Bridge"

By: David Mansfield

David Mansfield — Fri, 19 Aug 2022 14:41:25 +0000

I’m still having problems; -listallhardwareports shows my hard-wired ethernet port as “Ethernet 1”, but if I run networksetup -setv6off Ethernet 1, it still is not listed as a recognized network service. Changing the space to an underscore doesn’t help, nor does leaving the space out. Ideas??

By: Clark

Clark — Mon, 25 Apr 2022 14:52:11 +0000

Or there is always the best step 0: Don’t disable IPv6; instead, make sure it is turned at on your router. Most ISPs *do* support IPv6 and nearly half the Internet’s traffic is IPv6. Google, Facebook, Microsoft, Apple all run IPv6; virtually all cable modem ISPs, 4g/5g wireless, fiber providers deliver IPv6. *Enterprises* are still lagging, but that is getting better (slowly).

You probably do need to run “dual stack” IPv6 for some time (though if you’re interested look into NAT64 as a transition technology), but there are significant security benefits to using IPv6 whenever possible. It is true that you can encounter some “split tunnel” kinds of issues with some corner case dual stack/VPN scenarios, but with so many VPN providers supporting IPv6 natively, the guidance to to disable IPv6 is largely anachronistic.

By: Quazimodo Aston

Quazimodo Aston — Wed, 26 Jan 2022 14:07:10 +0000

Thanks a lot!
it worked!

By: Jana

Jana — Mon, 03 May 2021 13:14:23 +0000

In reply to Jack.

If you write
networksetup -setv6off “USB 10/100/1000 LAN”
it should work! At least it worked for me.

By: Jim Budler

Jim Budler — Mon, 29 Mar 2021 06:14:57 +0000

networksetup -setv6off ‘Thunderbolt Ethernet’

By: Michael

Michael — Sun, 14 Mar 2021 20:15:54 +0000

In reply to Jack.

Same issue…
any way to turn off ipv6 with thunderbolt?

By: Jack

Jack — Sun, 07 Mar 2021 19:45:09 +0000

In reply to Antonio.

Hello again,
When I run $networksetup -listallhardwareports command, I found on the top of list :

Hardware Port: USB 10/100/1000 LAN
Device: en7

However when I run this command:

networksetup -setv6off USB 10/100/1000 LAN

I receive this error:
USB is not a recognized network service.
** Error: The parameters were not valid.

I tried various alternatives such as USB or 10/100/1000 LAN separetly , I receive same error.

anyone can have an idea?

By: Antonio

Antonio — Fri, 05 Mar 2021 00:30:18 +0000

In reply to Jack.

Check your devices
$networksetup -listallhardwareports

Replace Network or Wi-Fi for your Hardware Port Name.

By: Jack

Jack — Mon, 01 Mar 2021 18:51:04 +0000

thanks for the article,

I have a question:

I am connected through a thunderbolt connecter, USB 10/100/1000 LAN
in that case what should be the command line to deactivate IPv6?