I am able to apply "ip dhcp server X.X.X.X in a global setting but not on the interfaces, nor can I place a helper-address on any of the interface except for vlan1. all the other vlan interfaces are on the router. I do have policies associated to the wlan's requiring DHCP and a ip address to the server is there but when I pull wireshark from the client, I see the relay address, but when I pull wireshark on the AP interface, and the controller interfaces the source address has been stripped out.
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I'm hoping for some help here, I'm trying to fire up a new Cisco 9800 WLC for first use, and for some reason I cant get the DHCP discovery from the client to be forwarded to and external DHCP Server. I enabled the DHCP Service from the CLI, also enabled "ip dhcp relay information trusted" on all the ports including the channel-port, but with no luck. when I enable wire shark on my client I see the requests going out for discovery, with no responses coming back. I am using vtp 3 setup so I can pull all the vlans down from the master switch, but unlike 5508 WLC there's no settings to point to a specific DHCP server there. Under Tags and Policies, I configured my policy in the advanced tab to require IPv4 DHCP and put a DHCP Server IP Address in it. I do have Central DHCP enabled on the general tab, but not quite sure what that setting is (on by default). I've toggled through various settings and not sure what to do next.
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