Re: NAT problems 14.3+

Rob Bloemers <[email protected]> Tue, 5 May 2026 20:41:08 +0200
Newsgroups gmane.os.freebsd.devel.ipfw
Message-ID <[email protected]>
Hi!

No the hosts are all bare metal in my tests/environments.=20

> On 5 May 2026, at 19:08, Miroslav Lachman <[email protected]> wrote:
>=20
> On 05/05/2026 16:45, Rob Bloemers wrote:
>> I found the reason, or better put, workaround for my issue. When =
disabling tx and rxcsum on the vnet internet of the jail, things starts =
to work again.
> Any chance your host is running as z VM inside some hypervisor? I had =
this problem in the past on KVM guest.
> Network is working fine for host, but not for another guest behind =
this gateway with NAT until I disabled rx / tx sum on FreeBSD host's =
interface.
>=20
> M. Lachman
>=20