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submitted 3 weeks ago* (last edited 3 weeks ago) by [email protected] to c/[email protected]

Today in our newest take on "older technology is better": why NAT rules!

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[-] stoy 2 points 3 weeks ago

But IPv4 addresses are easier to remember!

/s

I could see a point of having home networks stay on IPv4 and NAT with an external v6 address.

That would keep the current security model for home networks where we can assume general tech litteracy is low.

[-] [email protected] 4 points 3 weeks ago

That is not how it works. You can have a home network on ipv6. And it can reach all of ipv4 via nat ( just like ipv4 do today). A net with only ipv4 can not reach any ipv6 without a proxy that terminst the v4 connection and make a new v6 connection. since ipv6 is backwards compatible. But ipv4 is naturally not forwards compatible.

Also it is the default deny of the stateful firewall that always coexist with NAT, since NAT depends on that state, that is the security in a NAT router.
That default deny is not in any way dependant on the NAT part.

[-] stoy 2 points 3 weeks ago

Interesting, I thought NAT could handle it...

[-] [email protected] 1 points 3 weeks ago

You could still NAT between v6's though.

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this post was submitted on 19 Jun 2024
313 points (85.6% liked)

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