Re:India is leading IPv6 migration with 61.67% adoption
by supertrope on Sunday August 15, 2021 @02:41PM
(#28191243)
Parent commenter wasn't saying that CG NAT costs could be avoided entirely. Deploying IPv6 gets Netflix, YouTube, Facebook and other popular traffic to connect directly. That means less racks of CG NAT.
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Re:India is leading IPv6 migration with 61.67% adoption
by 2fastpost on Sunday August 15, 2021 @03:07PM
(#28191493)
Like I said, you can only avoid CGNAT costs if you accept the failure modes inherent if/when your IPv6 fails.
Thus in a properly designed network these are not optional costs.
Re:India is leading IPv6 migration with 61.67% adoption
by Dagger2 on Wednesday August 18, 2021 @03:31AM
(#28218533)
You do avoid some of the cost, because you can direct a significant amount of your traffic over v6 and not need to CGNAT it.
The failure mode for your v6 failing is the same as it is for v4 failing in a v4-only ISP: stuff breaks. If you want to fix that you need a redundant failover setup, which is the same thing you need in v4 except cheaper because it doesn't need to do CGNAT.