> I mentioned that ipv6 packets over Ethernet interfaces are
> systematically limited to 1280 bytes even if the interface MTU is
> configured at 1500 (in IPv4 everything is ok).  Is it normal?

No.  I don't even see it; when tcpdumping a v6 connection (over
Ethernet) I see packets with over 1280 bytes of payload alone (1428, to
be specific).

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