IPv6 leak with OpenVPN
Problem #
For some reason, OpenVPN has an IP leak problem when no IPv6 routes are specified. This means that if using OpenVPN to what I assume to be purely IPv4 VPN servers (looking at you, ProtonVPN), but you're on a network with both IPv4 and IPv6, ip leak services detect the local IPv6, but the VPN IPv4. This is mildly annoying, because using an OpenVPN client instead of the ProtonVPN client is far more convenient.