Your original comment was: > but your local router has old software and treats all packages to x.x.x.x.* as directed to it. So how do you have an IPv4x addres

Your original comment was: > but your local router has old software and treats all packages to x.x.x.x.* as directed to it. So how do you have an IPv4x address? And then how did you let someone else on the internet know about the IPv4x address? I know plenty well how IP routing works otherwise I wouldn't be in this conversation. Is there something specific in the RFC you think I’m not understanding?