Many computer games or P2P systems <i>work around the pain that is NAT</i>. But with IPv6 you just... <i>remove the workaround</i>. That&#x27;s always going to be better.<p>If you like the &quot;game requests a firewall exception by making a uPnP call to the router&quot; model, there&#x27;s no reason at all you can&#x27;t do exactly the same thing under IPv6. The only difference is that games that don&#x27;t have all the hacky workarounds will also work.