[SOLVED] How do I disable ipv6 in Slackware 14.1?

Gary Baker · 05-11-2014, 07:37 AM

Hello all:

I know this can be done in various ways by editing lilo or grub files but I just want to edit a configuration file or setting. Is anybody's memory better than mine?

Didier Spaier · 05-11-2014, 07:51 AM

Well, according to a quick search on the Internet it seems that you could include this option in your command line:

Code:

ipv6.disable=1

to completely disable ipv6, or

Code:

ipv6.disable_ipv6=1

to avoid assigning IPv6 addresses to any of your network devices.

To know more, see these documents in your Slackware:
/usr/src/linux/Documentation/kernel-parameters.txt
/usr/src/linux/Documentation/networking/ipv6.txt

PS blacklisting ipv6 work as well, because the IPV6 driver is configured as a module in Slackware kernels.

Speek · 05-11-2014, 08:02 AM

Or blacklist the ipv6 kernel module:

Code:

echo "blacklist ipv6" > /etc/modprobe.d/blacklist-ipv6.conf

cynwulf · 05-11-2014, 09:42 AM

Do it via the kernel command line and append the option, e.g.

edit /etc/lilo.conf

Code:

image = /boot/vmlinuz
  root = /dev/sda1
  label = Linux
  read-only
  append="ipv6.disable=1"

(and don't forget to run lilo)

kikinovak · 05-11-2014, 10:59 AM

I'd rather add it to the initial append line at the top of lilo.conf, not to a kernel stanza. Here's what mine looks like:

Code:

append="nomodeset quiet ipv6.disable=1 root=/dev/md3 vt.default_utf8=1"
boot = /dev/md1

Cheers,

Niki

Gary Baker · 05-13-2014, 04:53 PM

Thank you all for an accurate and through answer to my question. You all deserve the credit.

jefro · 05-13-2014, 10:11 PM

May have to disable it too in some browsers.

staus · 05-17-2014, 10:08 PM

The only way I could ever kill IPV6 was to add aliases.conf to the /etc/modprobe.d subdirectory.

Place this in aliases.conf:
alias net-pf-10 off# IPv6

None of the other blacklist methods worked.
Thanks to someone on this forum.