Meh. There's this and a hundred other ways to get past a firewall, and NAT is an ugly hack to extend the life of IPv4 not a security feature. Firewalls are a

Meh. There's this and a hundred other ways to get past a firewall, and NAT is an ugly hack to extend the life of IPv4 not a security feature. Firewalls are a false god. If something can't be connected to the open network and remain reasonably secure, it is not secure. Firewalls are a necessary evil because there's a lot of insecure junk, sure, but relying on them encourages more insecure junk to be made and encourages lazy security practices in general.