Date: Thu, 28 Aug 2008 08:55:44 -0700 From: Sam Leffler <sam@freebsd.org> To: Andrew Thompson <thompsa@freebsd.org> Cc: Daniel Eischen <deischen@freebsd.org>, current@freebsd.org Subject: Re: How to use lagg and wlan together Message-ID: <48B6CA80.50606@freebsd.org> In-Reply-To: <20080828151006.GE98483@citylink.fud.org.nz> References: <Pine.GSO.4.64.0808261114030.18685@sea.ntplx.net> <20080828151006.GE98483@citylink.fud.org.nz>
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Andrew Thompson wrote:
> On Tue, Aug 26, 2008 at 11:41:20AM -0400, Daniel Eischen wrote:
>
>> I'm trying to get a lagg interface with failover to work with bfe0
>> and wlan0. The master port is bfe0, with failover to wlan0. The
>> wlan0 interface is ath0.
>>
>> I can get both wlan0 and bfe0 to work independently without being
>> lagg devices, but only bfe0 works when wlan0 and bfe0 are in a
>> lagg interface. In other words, when I pull the plug on bfe0, it
>> does not failover to wlan0.
>>
>> The system is a 1 month old -current (i386) that has been pretty
>> stable and I'm using something like this in /etc/rc.conf:
>>
>> wlans_ath0=wlan0
>> ifconfig_wlan0="ssid my_ssid \
>> wepkey 1:0xblah1 wepkey 2:0xblah2 \
>> wepkey 3:0xblah3 wepkey 4:0xblah4 \
>> weptxkey 1 authmode shared"
>> ifconfig_bfe0="up"
>> cloned_interfaces="lagg0"
>> ifconfig_lagg0="laggproto failover laggport bfe0 laggport wlan0"
>> ifconfig_lagg0_alias0="inet 10.0.0.7 netmask 0xffffff00"
>>
>> $ ifconfig -a
>> ath0: flags=8802<BROADCAST,SIMPLEX,MULTICAST> metric 0 mtu 2290
>> ether 00:11:f5:9d:54:f5
>>
> ^^^^^^^^^^^^^^^^^^^^^^^
>
>> media: IEEE 802.11 Wireless Ethernet autoselect mode 11g
>> status: associated
>> bfe0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>> options=8<VLAN_MTU>
>> ether 00:14:22:ae:bc:98
>> media: Ethernet autoselect (100baseTX <full-duplex>)
>> status: active
>> lagg: laggdev lagg0
>> lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
>> inet6 fe80::1%lo0 prefixlen 64 scopeid 0x4
>> inet6 ::1 prefixlen 128
>> inet 127.0.0.1 netmask 0xff000000
>> lagg0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>> ether 00:14:22:ae:bc:98
>>
> ^^^^^^^^^^^^^^^^^^^^^^^
>
>> inet 10.0.0.7 netmask 0xffffff00 broadcast 10.0.0.255
>> media: Ethernet autoselect
>> status: active
>> laggproto failover
>> laggport: wlan0 flags=0<>
>> laggport: bfe0 flags=5<MASTER,ACTIVE>
>> wlan0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0 mtu 1500
>> ether 00:14:22:ae:bc:98
>>
> ^^^^^^^^^^^^^^^^^^^^^^^
>
> I wonder if it becuase the lagg driver sets the mac address of all its
> interfaces to the same value, this has not been propagated back up to
> the ath0 interface.
>
> I wonder if this is the right way to do things.
>
>
You can't have the wlan mac address that different from the underlying
device (it can only differ in the high byte if the bssid mask is setup
in the h/w). Propagating the mac address to the chip would work.
Sam
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