Perhaps, the IPv4 space is easier to police? IPv6 Transition/Co-existence Security Considerations, https://datatracker.ietf.org/doc/rfc4942/ https://datatracke

Perhaps, the IPv4 space is easier to police? IPv6 Transition/Co-existence Security Considerations, https://datatracker.ietf.org/doc/rfc4942/ https://datatracker.ietf.org/doc/rfc4942/ Operational Security Considerations for IPv6 Networks, https://datatracker.ietf.org/doc/rfc9099/ https://datatracker.ietf.org/doc/rfc9099/