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How to Disable IPv6
Posted: 20 Dec 2023, 22:45
by StephenM
It seems that IPv6 does work on an ARM device running 4.2.41
ifconfig reports eth0 as having an IPv6 address.
How do I disable IPv6?
There are no options to do this on networking section in the Control Panel.
Re: How to Disable IPv6
Posted: 21 Dec 2023, 09:05
by TMzethar
210series, arm, TOS4 device do not have this option.
Perhaps you can do this by setting the relevant options for your router.
Re: How to Disable IPv6
Posted: 14 Dec 2025, 04:15
by AlAleksiev
Hi guys, just saw that thread - it's kind of old, but I'll put some notes here to serve eventually in the future for a similar question.
You can always stop IPv6 on a linux. The example I'll write is for debian based distributions - that's where TOS v6.X is currently.
PLease mention the prompt '#' - that means root! If you are with that prompt '$', you'll need to add one 'sudo ' in front of those commands or when edditing file with vi!
This will stop IPv6 for the currently running appliance - it's not going to survive reload and that's good approaach as initial testing for side effect with whatever you are running!
Code: Select all
# sysctl -w net.ipv6.conf.all.disable_ipv6=1
# sysctl -w net.ipv6.conf.default.disable_ipv6=1
# sysctl -w net.ipv6.conf.lo.disable_ipv6=1
#
If you want to have IPv6 disabled for good, add in /etc/sysctl.conf file those lines:
Code: Select all
# Permanently disable IPv6
net.ipv6.conf.all.disable_ipv6=1
net.ipv6.conf.default.disable_ipv6=1
net.ipv6.conf.lo.disable_ipv6=1
and apply those changes
To valisate you can always use
if there are no output, you have the IPv6 disabled.
Good luck!