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EWS Series User Manual

ManualsBrandsEdgecore Networks ManualsControllerWireless Lan Controller
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DM and CoA
The WLAN controller supports RADIUS authentication through UAM (Universal Access Method), which is
to say that the auth-request is sent out by the WLAN controller. The DM&CoA feature allows an External
Web Server to directly send auth-requests to the RADIUS Server. Subsequently, the External Web Server
sends the authentication result to the WLAN controller in the form of CoA exchange. Likewise, the WLAN
controller is able to accept Disconnect Messages from the External Web Server.
The following illustrates the authentication flow via CoA
The following illustrates the authentication flow via CoA