Our scenario is that we are building a test rig-up prior to WLC deployment. We have a 4402 WLC with LAP1242s, Windows clients. The WLC is running v4.2.99 firmware.
Our problem is that the wireless clients are not collecting DHCP addresses.
The configuration is:
Base network address is 172.31.4.0 / 255.255.252.0.
WLC on 172.31.7.220 / .221.
DHCP server on 172.31.4.12
G/W on 172.31.4.1.
We are simulating the gateway with an ADSL router (not connected so no external traffic but at the moment that is the least of our troubles), and the DHCP server with a Cisco 805 router with only the Ethernet interface in use (the 805 permits us to configure a different D/G to the DHCP server).
We have a catalyst 2950 switch in the circuit which has no VLANs nor access-lists configured.
The wireless clients can associate to the LWAPs but do not collect an IP address.
Wired clients can collect DHCP addresses and ping the DHCP, GW and controller.
Can anyone help me understand what is going on here please and how to get the DHCP working?
We did use this configuration - exactly these boxes in fact - to configure a different WLC last week (different subnets though) and we were successful - but not now.
Thanks in advance