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otterley07/31/20251 replyview on HN

Not a networking expert, but does TCP in IPv6 suffer the same maladies?


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pumplekin07/31/2025

Yes.

Layer4 TCP is pretty much just slapped on top of Layer3 IPv4 or IPv6 in exactly the same way for both of them.

Outside of some little nitpicky things like details on how TCP MSS clamping works, it is basically the same.

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