[Bug 235607] Incorrect checksums with NAT on vtnet with offloading

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Tue Nov 12 22:14:59 UTC 2019


https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=235607

--- Comment #11 from Jorge Schrauwen <sjorge+signup at blackdot.be> ---
(In reply to Vincenzo Maffione from comment #9)
I am using bhyve, but on an illumos host system. On illumos bhyve does support
this offloading.

I was talking about this with Tom Jones at FOSDEM and again at EuroBSDcon 2019,
the main problem is indeed that FreeBSD's bhyve did not support all the
offloading which made producing a test case that worked on FreeBSD+Bhyve rather
problematic.

I only run a mix of FreeBSD and illumos (SmartOS) so I am not sure the behavior
on Linux/KVM matches that of illumos/bhyve. I do know that freebsd/bhyve did
not have the problem due as you said, lack of all the offloading features.

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