Date: Wed, 05 Aug 2009 20:25:28 +0300 From: Nikos Vassiliadis <nvass9573@gmx.com> To: Gary Gatten <Ggatten@waddell.com> Cc: arctic@alkar.net, freebsd-questions@freebsd.org Subject: Re: Network card Intel and 802.1P tag Message-ID: <4A79C088.1090504@gmx.com> In-Reply-To: <70C0964126D66F458E688618E1CD008A0793F2F9@WADPEXV0.waddell.com> References: <70C0964126D66F458E688618E1CD008A0793F2F9@WADPEXV0.waddell.com>
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Gary Gatten wrote: > Not ALL chipsets / drivers support 802.1Q / p , maybe this is one of them? The vlan driver handles tagging itself in software. You don't need support by the hardware driver or the NIC itself. That said, Intel NICs are known to work correctly and support dot1Q tags natively in hardware. Maybe this behavior is some regression with the priority tags, which by the way are completely ignored by the vlan driver. You cannot set a priority tag or have the vlan driver process it in a special way. I guess processing priority tags is not very useful since one cannot expect a FreeBSD box to replace a switch! As I understand Andrey just runs tcpdump on the physical interface. He doesn't use the vlan driver. He should see everything that reaches the ethernet port. tagged or not. Nikos
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