No DHCP lease with iwi(4)/wlan(5); works with an(4) at r197399

[David Wolfskill]

I normally use wireless NICs on my laptop, especially at home,  I
swapped the miniPCI wi(4) for an iwi(4) a few weeks ago, and had it
working in stable/6, stable/7, and head until a few days ago, when it
seemed that the NIC was associating OK, but dhclient(8) reports:

dhclient: Exiting /etc/dhclient-exit-hooks (PREINIT) with exit_status 0
DHCPREQUEST on wlan0 to 255.255.255.255 port 67
DHCPREQUEST on wlan0 to 255.255.255.255 port 67
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 16
^C

This morning, I had the time to try plugging in a wireless PCcard (an0)
NIC; after doing that, I see:

dhclient: Exiting /etc/dhclient-exit-hooks (PREINIT) with exit_status 0
DHCPDISCOVER on an0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on an0 to 255.255.255.255 port 67 interval 7
DHCPOFFER from 172.17.0.1
DHCPREQUEST on an0 to 255.255.255.255 port 67
DHCPACK from 172.17.0.1
bound to 172.17.1.37 -- renewal in 302400 seconds.

which is a bit closer to the desired effect.

I realize that an(4) doesn't use wlan(4), so this could indicate a
problem with either iwi(4) or wlan(4) -- but it seems to show that
dhclient(8) itself is working, as is the basic infrastructure (my
DHCP server; the access point; the ipfw(4) rules I have in place
before & after DHCP activity).

As I type, I'm running:

FreeBSD g1-37.catwhisker.org 9.0-CURRENT FreeBSD 9.0-CURRENT #1123 r197399: Tue Sep 22 06:16:11 PDT 2009     root@:/common/S4/obj/usr/src/sys/CANARY  i386

and am in the process of building head at r197427.

Is there something I might do to help diagnose what's wrong here?

Peace,
david
-- 
David H. Wolfskill				david at catwhisker.org
Depriving a girl or boy of an opportunity for education is evil.

See http://www.catwhisker.org/~david/publickey.gpg for my public key.
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