On Sat, Mar 21, 2015 at 11:19:18PM +0100, Aram Hăvărneanu wrote:
> I have a ThinkPad x240 (Intel 7620 wireless) running -current (to get
> the new iwm(4) driver). Wireless works fine, but when I try to use a
> trunk(4) device, in the way it's described in the faq[1], it doesn't
> work.
>
> When I boot without wired ethernet plugged in, networking doesn't work
> at all (dhcp times out after a while, then nothing works), even if I
> later plug an ethernet cable in.
>
> When I boot with wired ethernet plugged in, when I remove the cable
> ifconfig(8) tells me trunk0 failed over to iwm0, but in fact
> networking doesn't work.
>
> My configuration is: http://sprunge.us/SDaD
>
> Is it my fault? How can I debug this further? Thanks.
>
> [1] http://www.openbsd.org/faq/faq6.html#Wireless
>
> --
> Aram Hăvărneanu
I believe trunk(4) changes the MAC address of its ports, so the following
note from the iwm page applies to your situation. The wording is probably
too specific. The problem was found with 'ifconfig iwm9 lladdr random' but
there are many ways to change the MAC.
BUGS
The firmware stops passing traffic if the MAC address is changed with
# ifconfig iwm0 lladdr ...
I could not yet figure out exactly why the firmware stops working when the
MAC address is changed. Help is welcome.
