Disabling IPv6 in OS X Lion

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Disabling IPv6 in OS X Lion

This article says I should have an "Off" option under the IPv6 pop-up menu. In OS X Lion (10.7.3) that option does not exist, "Automatically", "Manually" and "Link-local only". My corp. IT tells me IPv6 is messing up the network and I have to disable it. How do I do that if the "Off" option isn't provided? After searching I found "ip6 -x" command line utiltiy disables it, however it's not peristant through reboots. What can I do to make it persistant?

Mac Pro, Mac OS X (10.7.3)

Posted on Feb 23, 2012 10:03 AM

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Answer 1

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Ziogiorgio

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Apr 9, 2012 9:37 AM in response to gosuperninja

For the WiFi use terminal and write:

networksetup -setv6off wi-fi

For the ethernet connection:

networksetup -setv6off Ethernet

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Answer 2

Apr 11, 2012 10:01 AM in response to Ziogiorgio

I just tryed the command networksetup -setv6off Ethernet

on a Lion Mac and it did not work. It did not work. I also tryed it with Ethernet 1 as that is what my network setting is named. Is there another way to Disable ipv6 in Lion?

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Answer 3

Apr 12, 2012 4:17 AM in response to Jade Curtis

networksetup -listallnetworkservices

will give you a list of the exact names that must be used with the command.

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Answer 4

May 15, 2012 5:34 PM in response to gosuperninja

Thanks to "Retired Engineer" for providing a clue, the correct command for the WiFi is

networksetup -setv6off Wi-Fi

It's important to get the capitalization correct, I suspect.

For Ethernet on Macbook Air using the USB Ethernet dongle, it's:

networksetup -setv6off USB Ethernet

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Answer 5

Jan 7, 2015 3:55 PM in response to andygottlieb

For Ethernet on my Macbook I had to put quotes around USB Ethernet. For example:

networksetup -setv6off 'USB Ethernet'

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Answer 6

May 4, 2015 6:38 PM in response to tumble_weed

Under 10.10.3 I also needed the quotes:

networksetup -setv6off 'Ethernet 1'

Mac Pro, so it has 2 Ethernets so you of course have to name which one.

So:

networksetup -setv6off 'Ethernet 2'

For the other.

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