Date: Wed, 18 Dec 2024 03:44:31 +0000 From: bugzilla-noreply@freebsd.org To: net@FreeBSD.org Subject: [Bug 283380] FreeBSD accepts and processes IPv4 packets destined to non-local MAC addresses instead of dropping them Message-ID: <bug-283380-7501-wj4y5J5xjN@https.bugs.freebsd.org/bugzilla/> In-Reply-To: <bug-283380-7501@https.bugs.freebsd.org/bugzilla/> References: <bug-283380-7501@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D283380 Zhenlei Huang <zlei@FreeBSD.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |zlei@FreeBSD.org --- Comment #3 from Zhenlei Huang <zlei@FreeBSD.org> --- (In reply to Joerg Goltermann from comment #0) > the system accepts and forwards IP packets to non-local MAC addresses whi= ch can be > seen on a tcpdump eg tcpdump -netttti vtnet2 host 146.185.xx.yy You may want to turn on the tcpdump(1) option `--no-promiscuous-mode`. By default tcpdump(1) will put the interface into promiscuous mode, i.e., the interface will see all traffic. You can also check if the interface is put into promiscuous mode by ifconfig(8). ``` $ ifconfig cxl0 | grep PROMISC cxl0: flags=3D8902<BROADCAST,PROMISC,SIMPLEX,MULTICAST> metric 0 mtu 1500 ``` You're welcomed to report back if the issue persists. --=20 You are receiving this mail because: You are the assignee for the bug.=
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