Use the protocol command to set the security protocol used with the RADIUS server. The protocol command is accessible from the vnsmode:radius: <named_RADIUS_server> context of the CLI.
CHAP|MS-CHAP|MS-CHAP2|PAP | Specifies the security protocol that is used between the RADIUS Server and the Wireless Appliance. |
The following example sets the security protocol to PAP for the RADIUS server named RAD1:
EWC.extremenetworks.com:vnsmode:radius:RAD1# protocol PAP