DHCP and Radius

Question

Hi,
We are trying to migrate a secure wlan that uses certificates on client laptops.
The ultimate goal is point the secure wlan to a new DHCP server which also has a new Enterprise certificate. Currently, the old server provides the Enterprise certificate and the DHCP scope for the sercure wlan. When we attempted to migrate the secure wlan previously the 5508 could not perform 802.1X communcations with the new server since it didn't have the certificate.
Question: for the secure wlan can we point it at the new server for DHCP and point it at the old server for the Enterprise certificate until such time we can get the certificate on the new server?
The secure wlan does use Radius pointing to the new server.
Thanks.

Answer 1

http://www.cisco.com/en/US/docs/ios-xml/ios/ipaddr_dhcp/configuration/xe-3s/DHCP_Server_RADIUS_Proxy.html#GUID-4C505B07-76D0-43D2-8FF9-2A71FB2685FC
Configuring the DHCP Server for RADIUS-based Authorization
Perform this task on the DHCP server to configure address allocation for RADIUS-based authorization of DHCP leases.
SUMMARY STEPS1.    enable
2.    configure terminal
3.    service dhcp
4.    aaa new-model
5.    aaa group server radius group-name
6.    server ip-address [auth-port port-number] [acct-port port-number]
7.    exit
8.    aaa authorization network method-list-name group group-name
9.    aaa accounting network method-list-name start-stop group group-name
10.    ip dhcp pool name
11.    accounting method-list-name
12.    authorization method method-list-name
13.    authorization shared-password password
14.    authorization username string
15.    exit
16.    interface type slot / subslot / port [. subinterface]
17.    encapsulation dot1q vlan-id second-dot1q {any | vlan-id[, vlan-id[- vlan-id]]}
18.    ip address address mask
19.    no shutdown
20.    radius-server host ip-address [auth-port port-number] [acct-port port-number]
21.    radius-server key {0 string | 7 string | string}
22.    exit