[clue-tech] wireless problem

[Dennis J Perkins]

> I assume you already have DHCP enabled?  What happens if you run dhclient
> or dhcpcd manually on the ath0 interface?  (If you run it manually make
> sure debug mode is on so you see what's happening.)
> 
> If that still doesn't work - what accesspoint are you using?  You might
> need the madwifi groupkey patch which sets the unicast groupkey properly.
> There is a bug in the code surrounding the selection of transmit key
> for unicast packets like DHCP.  The patch corrects this and makes DHCP,
> ARP (and thus inter-client ping) etc. work properly.
> 
> We had to apply this patch to get Windows XP and Linux (madwifi) clients
> to get a DHCP IP address.  We are using madwifi in the WPA accesspoint.
> 
> If the groupkey is not set properly DHCP, ARP, etc. might not work.  You
> may be able to work around this problem by setting the groupkey rekeying
> timeout very short (10 to 30 seconds) in your accesspoint.  What you
> want is for the groupkey rekeying to happen before the DHCP client gives
> up on the DHCPDISCOVER process.
> 
> Hope this helps,
> Jim
> 

If I do these two steps manually, I can get on the Internet:

ifconfig ath0 up
dhcpcd ath0

I'm not familiar with groupkeys.