Date: Mon, 3 Sep 2012 07:29:52 +1000 From: Peter Jeremy <peter@rulingia.com> To: Adrian Chadd <adrian@freebsd.org> Cc: kaltheat@googlemail.com, net@freebsd.org Subject: Re: lagg failover issue Message-ID: <20120902212952.GB2654@aspire.rulingia.com> In-Reply-To: <CAJ-VmoneEMvCpNotru%2Bws9NdcyExnkGfxnx2W=z7e-Myb1RWRQ@mail.gmail.com> References: <20120830215147.GA2383@-> <20120831104532.GA1758@-> <CAJ-VmoneEMvCpNotru%2Bws9NdcyExnkGfxnx2W=z7e-Myb1RWRQ@mail.gmail.com>
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Adrian,
On 2012-Aug-31 04:29:53 -0700, Adrian Chadd <adrian@freebsd.org> wrote:
>You can't override set the outbound MAC address of a wireless station.
>It associates with the MAC address of the card/vap/device. The AP
>_will_ store that MAC address in its node table.
Are you saying I can't portably do the following:
# ifconfig ath0 ether 00:11:22:33:44:55
# ifconfig create wlan0 wlandev ath0 ssid my_net up
My understanding was that the first line changes the MAC associated
with ath0. The second line then creates a wlan device and allows ath0
to associate with an AP with ssid "my_net" - and this association will
be performed using the updated MAC address. Which part of this
doesn't work?
>What you really want is for the same IP to exist but only both
>interfaces and have the source interface/MAC seamlessly change.
Actually, lagg(4) requires all associated interfaces to have the same
MAC address - it doesn't change them during operation. Normally, it
updates the MAC address when it does the "addm" but this doesn't work
for "addm wlan0" (presumably for the reasons you describe) but
manually changing the MAC address of the WiFi NIC before creating the
wlan device avoids this.
--=20
Peter Jeremy
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