Date: Sun, 04 Dec 2011 12:01:30 -0800 From: Julian Elischer <julian@freebsd.org> To: Adrian Chadd <adrian@freebsd.org> Cc: Pawel Tyll <ptyll@nitronet.pl>, freebsd-net@freebsd.org Subject: Re: VLAN and LLADDR. Message-ID: <4EDBD19A.70303@freebsd.org> In-Reply-To: <CAJ-VmonN=JexsCs-MjnAVum9By84zrxVF9hEoxDOcVKp5pZFVw@mail.gmail.com> References: <307826129.20111204065221@nitronet.pl> <CAJ-VmonN=JexsCs-MjnAVum9By84zrxVF9hEoxDOcVKp5pZFVw@mail.gmail.com>
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On 12/3/11 11:30 PM, Adrian Chadd wrote: > On 4 December 2011 13:52, Pawel Tyll<ptyll@nitronet.pl> wrote: >> Hi list, >> >> Having a different MAC address on vlan interface and parent interface >> requires enabling promiscuous mode. Is this a bug, or is it working as >> intended? Will leaving promiscuous mode enabled indefinitely hurt >> performance on gigabit em interface? > Hm, that's an interesting issue. How about writing a PR about it? > > You may find some hardware lets you program in a unicast filter or a > set of local mac addresses, instead of a single station address. > (I know I can do this with my atheros wifi nics, for example.) In these days of ethernet switches.. you already have mac address filters on the switch so the downside of not having one on the NIC is smaller than it used to be. The days of pure broadcast networks (e.g. 10Mb coax networks) are pretty much gone. (except in the wireless world). > > Adrian > _______________________________________________ > freebsd-net@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-net > To unsubscribe, send any mail to "freebsd-net-unsubscribe@freebsd.org" > >
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