ipv6 leak even when protocol is deactivated (again)

[FreeInThinAir 1]

I have been using airvpn for a while and only recently realized that I have been leaking my ipv6 address...

 

So, I want here to resurrect an earlier thread related to ipv6 leaking (https://airvpn.org/topic/18108-ipv6-leak/.)
I experience the exact same problem.
Under linux (Mint 18) I disabled IPV6 on my machine (by adding the following in /etc/sysctl.conf
# disable ipv6 altogether
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1) AND selected the advanced AirVPN client option to disable IPV6.
Still, visiting https://ipleak.net shows that my ipv6 is leaked.
Selecting the network lock is only way to avoid the leak.
I consider this problem a real issue...

[LZ1 673]

Hello!

 

Which client are you using? Maybe the experimental version would help you.

[FreeInThinAir 1]

I am running version 2.11.3 which is the experimental one...

I do not exactly remember why I needed to go for it though... (web rtc leak maybe?)

[Staff 10019]

Hello,

as Monsieur De La Palisse would say, if IPv6 is active in your system then it has not been disabled.

 

Something is wrong in your procedure, please check.

Eddie for GNU/Linux can not guarantee that IPv6 is disabled in every GNU/Linux distribution, as you probably already know from the disclaimer it prints the first time you the option. You can enable Network Lock, which will set ip6tables rules to prevent IPv6 leaks.

Kind regards