FreeBSD 13.0-RC1 ethertype IPv6 (0x86dd), length 2942 on 1500 MTU

Lars Schotte lars at gustik.eu
Mon Mar 8 22:28:54 UTC 2021


Hi,
thanks for you fast reaction.

I was sceptical about this, since it contrary to my expectations indeed
does affect IPv4 as well, but I tried it anyway and the result is
NEGATIVE.

Removing TSO6 does not help with it, it still spills out crazy sized
Ethernet frames of ~4000 and so on.

On Mon, 2021-03-08 at 17:22 -0500, Ryan Stone wrote:
> Hi Lars,
> 
> Do you see the TSO6 option enabled on your vtnet interface?  Do you
> see normal packet sizes if you disable it with "ifconfig vtnet0
> -tso6"?  Does it actually fix your IPv6 issue?
-- 
 Lars Schotte
 Mudroňova 13
92101 Piešťany



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