[TriLUG] WIFI misbehavior

[matt at noway2.thruhere.net]

> I've got a WRT54GL running Tomato and a Fedora 16 box connected to it.
>  In my /var/log/messages, I'm getting this way too frequently:
>
> May 30 14:55:55 laputa dhclient[25354]: DHCPREQUEST on wlan0 to 10.2.2.1
> port 67
> May 30 14:56:12 laputa dhclient[25354]: DHCPREQUEST on wlan0 to 10.2.2.1
> port 67
> May 30 14:56:28 laputa dhclient[25354]: DHCPREQUEST on wlan0 to 10.2.2.1
> port 67
> May 30 14:56:39 laputa dhclient[25354]: DHCPREQUEST on wlan0 to 10.2.2.1
> port 67
> May 30 14:57:00 laputa dhclient[25354]: DHCPREQUEST on wlan0 to 10.2.2.1
> port 67
>
I was getting something similar with wireless devices making excessive
DHCP requests on a WRT54 (not sure exactly which model off hand, but it
may be a GL also) running DD-WRT.  What was happening is that it was
requesting a new lease at the minimum lease time, which I increased.

> I checked /var/lib/dhclient, and I had 4 leases files (with multiple
> sections in them) for my wireless network.  I've deleted them all and
> the DHCPREQUESTing seems to have stopped.
>
> It looks like each time I suspend/resume I get a new lease section.
> Anyone else see this?  Know how to fix it?
>
The requests shown above are 10-20 seconds apart, which is really
excessive. Are you sure it is from a suspend resume or are there perhaps
multiple problems?

What is the state of these multiple lease files?  Do more than one of them
have an active binding state?