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IPv6 is the most recent version of internet protocol (IP) designed to eliminate the long-anticipated address exhaustion problem of IPv4. In order to disable IPv6 on Linux/Ubuntu, please follow the steps below:
1 Open Terminal
2 Enter
gksudo gedit /etc/sysctl.conf
and open the configuration file and add the following lines at the end
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
3 After that run
$ cat /proc/sys/net/ipv6/conf/all/disable_ipv6
If it reports ‘1’ means you have disabled IPV6. If it reports ‘0’ then please follow Step 4 and Step 5.
4 Type command
sudo sysctl -p
you will see this in terminal.
net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
5 Repeat above “Step 3” and it will now report 1.
Learn more about What is IPv6 Address?
Comments (5 )
We are Glad you found it helpful!
it was quick and helpful.
Worked great! Thanks!
Great!!!
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Interesting that I was having alot of trouble reliably connecting to various purevpn servers via unbuntu. (i.e. intermittently just couldn’t connect no matter how many retries).As soon as I disabled IPv6 on ubuntu 14.04 LTS – immediately connected.