Selfhosted
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No, I like living in my nat cocoon so I don't have to worry as much about all the devices on my network. Jk it's turned on, but I don't usually enable it on devices
NAT is not a security feature.
Thank you!!
If you don't want your devices to be accessible from the internet, you want a firewall. Treating NAT like a firewall is a bad idea.
But still, if I understand correctly, with NAT you can just use one firewall for your router and with IPv6 you'd need a firewall for each of your devices. This seems like a lot more to manage, right? But maybe I still don't understand the concept of IPv6.
Edit: Apparently I don't understand the concept of IPv6.
That's not correct, but it shouldn't preclude you from applying defence in depth.
Firewall and NAT are separate concepts. You can still have a firewall on your router when using IPv6. I don't know how many consumer-grade routers handle it well though.
Get a firewall. Malicious STUN, ALG DoS attacks, just these things make your NAT router less secure than you think it is.