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VPN issue (v4/6)
So I have three servers, A is for IPv4 gateway, while B is for IPv6 gateway, C is the VPN server. What I want to do is setting up a VPN server, and let traffic pass through these two gateway for further connections, where IPv4 goes A, v6 goes B.
Is this possible to do so with software like OpenVPN or Shadowsocks?
Comments
Do you really want to use C? With OpenVPN you could simply set up A and B and push routes for IPv4 from one server and for IPv6 from the other.
The same can be done if you really want to connect via C, obviously.
@Nyr C is a backup, in case of anything happens.
Which doc I should dig into? Really a noob in VPN stuff like these
A backup in the sense of connecting if one of the other links are down? If so, just push the IPv4 default route from A and the IPv6 default route from B. You'll need to establish two connections, one per box.
You'll need to use some client side magic to disconnect both connections when one of them goes down and automatically connect C, not sure what would be the best approach.
Check the official OpenVPN man, is a good resource. Oh, and please note that you will need a fully routed subnet to use IPv6 over tun (so no OpenVZ).
Like Nyr said, you need routed subnet and that you can get from Hurrican Network. VPN without ipv6 is not that secure, because more and more sites support ipv6 and if you check your traffic (with Wireshark etc.) you will see that is not encrypted.
Disabel WebRTC on your browser as well, if not, he will leak your real IP without problem. You can use this site to check if your VPN leak your IP in your browser: https://diafygi.github.io/webrtc-ips/.
tb-tun is a userspace program that utilizes TUN/TAP to build a tunnelbroker tunnel on linux https://code.google.com/p/tb-tun/. If you never done this before it will take you a lot of time to set this kind of VPN server, but you will get 100% better security for you.
This is wrong, IPv6 leaks are a client side problem. And anyway I would certainly prefer no IPv6 to single-homed HE IPv6.
@Nyr that is what i just said, you need to encrypt your ipv6 traffic. Maybe i didn't explain well.
Wrong again. You just need to avoid routing IPv6 if not available via the VPN.