cross-posted from: https://lemmy.world/post/3754933

While experimenting with ProtonVPN’s Wireguard configs, I realized that my real IPv6 address was leaking while IPv4 was correctly going through the tunnel. How do I prevent this from happening?

I’ve already tried adding ::/0 to the AllowedIPs option and IPv6 is listed as disabled in the NetworkManager profile.

  • notabot@lemm.ee
    1·
    1 year ago

    If you disable IPv6 at the kernel level there’s no extra latency as nothing even tries to connect to an IPv6 address. It’s a shame to have to do it, but does fix the issue.

    • z3bra@lemmy.sdf.org
      1·
      1 year ago

      Disabling it is fine indeed, but I saw many comments advising to block outbound traffic, so I warned against that.