Description of problem:
The iwl4965 driver provided by kernel 2.6.25.9-76 does not seems to be able to
correctly obtain the network parameters by dhcp (and, to be honest, it does not
work even with a fixed ip and gateway).
The problem seems to rely on the kernel itself because with the same version of
the iwl4965 driver, networkmanager, wpa_supplicant and dhclient everything works
perfectly just by switching back to a previous version of the kernel (f.i.
2.6.25.6-55).
I attached a sample log that shows how dhclient goes in time-out even if
networkmanager has already authenticated with the AP.

Version-Release number of selected component (if applicable):
iwl4964 1.2.16kds provided by vmlinuz-2.6.25.9-76.fc9.x86_64

How reproducible:
Try to connect to a wireless network using an Intel 4965 card using kernel
2.6.25.9-76

Steps to Reproduce:
1. Enable Wireless Connection in NetworkManager
2. Put the proper authentication method and password
3. Wait for the network parameters
  
Actual results:
NetworkManager tries many time to obtain the network parameters but it fails.

Expected results:
NetWorkManager connects to the AP, receive the propers network parameters and
you can browse the local network (and/or internet).

Additional info: