[Bug 283380] FreeBSD accepts and processes IPv4 packets destined to non-local MAC addresses instead of dropping them

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From: <bugzilla-noreply_at_freebsd.org>
Date: Wed, 18 Dec 2024 14:13:17 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=283380

--- Comment #7 from Joerg Goltermann <jgm@osn.de> ---
(In reply to Marek Zarychta from comment #6)
Routing and traffic to the system is not a problem with disabled LRO, TSO and
CSUM

hw.vtnet.csum_disable="1"
hw.vtnet.lro_disable="1"
hw.vtnet.tso_disable="1"

The only problem is that the kernel forwards unknown packets which should be
dropped.

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