alt Hacker NewsI understand ipv4 networks pretty well. And I would say that any device doing NAT is acting as a basic firewall. Do “true” firewalls do more? Sure. But saying NAT doesn’t provide security is flat out wrong.
I understand ipv4 networks pretty well. And I would say that any device doing NAT is acting as a basic firewall. Do “true” firewalls do more? Sure. But saying NAT doesn’t provide security is flat out wrong.
If your router had only NAT and someone (i.e. your ISP) sends it a package addressed to somewhere inside your internal IP range, it will happily forward it. A firewall would block it.