I am running into an autoinstall issue with our 2504 WLCs. Up to code version 7.2 I was able to use autoinstall to prime the WLCs by downloading the config from a TFTP server.
After upgrading to 220.127.116.11 the autoinstall fails because the WLC becomes unreachable after it received a DHCP address, gateway, option 150 and the bootfile. If I configure the controller manually, all is working as intended. Before upgrading to code version 7.4, we installed the FUS update 1.8 as described in the release notes.
The DHCP parameters are correctly handed out and I see the IP in the DHCP bindings with the management interface MAC. The WLC accepted all the parameters and in the console output the autoinstall is attempted as intended.
Pinging the DHCP - IP of the WLC is unsuccessful and thus the WLC cannot reach the TFTP server. A ping to a local broadcast shows 2 other clients (APs) on this segement but not the controller. The switch the WLC is connected to is a 3750 with IOS 12.2(58)SE2.
SW2#sho ip dh bin
Bindings from all pools not associated with VRF:
IP address Client-ID/ Lease expiration Type
10.80.1.57 f47f.35b6.9080 Mar 01 1993 04:40 AM Automatic
10.80.1.126 0150.3de5.d9d4.e1 Mar 01 1993 04:58 AM Automatic
10.80.1.127 01c8.9c1d.af2c.97 Mar 01 1993 04:59 AM Automatic
SW2#sho arp | i 9080
Internet 10.80.1.57 0 f47f.35b6.9080 ARPA Vlan8
SW2#sho run int g1/0/16
Current configuration : 179 bytes
switchport trunk encapsulation dot1q
switchport trunk native vlan 8
switchport mode trunk
I did not find anything in the bug navigator but this might be due to the fact that hardly anybody uses autoinstall.