IPv6 VPN with custom private IP in linux

Post your questions about SoftEther VPN software here. Please answer questions if you can afford.
Post Reply
biscuit
Posts: 1
Joined: Tue May 04, 2021 11:46 am

IPv6 VPN with custom private IP in linux

Post by biscuit » Wed May 05, 2021 9:18 am

I need to assign private IPv6 address to the network interface. I can do that in windows in
Network Connections > VPN Client > Properties > Internet Protocol Version 6 (TCP/IPv6) and set the IPv6, Subnet prefix length and gateway manually.

Please, is there the way how to do it in linux (Ubuntu 20)?

Thanks

MGruberTunnels
Posts: 8
Joined: Mon Apr 26, 2021 2:56 pm

Re: IPv6 VPN with custom private IP in linux

Post by MGruberTunnels » Wed May 05, 2021 10:28 pm

Hi! I think there are two ways you could check out.

First is through the Terminal (as always be very careful with these changes). You can edit

Code: Select all

/etc/network/interfaces
and add the following to the file:

Code: Select all

iface [YOUR INTERFACE NAME] inet6 static
       		 address [YOUR IPV6 ADDRESS]
       		 netmask 64
      		  dns-nameservers [YOUR DNS SERVER]
      		  post-up sleep 5; /sbin/ip -family inet6 route add [YOUR GATEWAY] [YOUR INTERFACE NAME]
      		  post-up sleep 5; /sbin/ip -family inet6 route add default via [YOUR GATEWAY]
     		  pre-down /sbin/ip -family inet6 route del default via [YOUR GATEWAY]
  		  pre-down /sbin/ip -family inet6 route del [YOUR GATEWAY] [YOUR INTERFACE NAME]
You can bring the interface up with

Code: Select all

ip link set [YOUR INTERFACE NAME] up
Then you can restart it with

Code: Select all

sudo systemctl restart networking
To check if the IPV6 address works, you can do a ping6 command on the terminal.

The second is by installing OpenVPN and letting that handle the IPV6 setup for you. This is my first post so I'm not sure if I can post links, but there are a few tutorials in the web for that :D

Post Reply