protocol

Configures the authentication protocol to use for communication with the Remote Authentication Dial-In User Service (RADIUS) server.

Syntax

protocol { chap | pap | peap }

no protocol

The default protocol is Challenge Handshake Authentication Protocol (CHAP).

chap: Specifies using CHAP for communication with the RADIUS server.
pap: Specifies using Password Authentication Protocol (PAP) for communication with the RADIUS server.
peap: Specifies using Protected Extensible Authentication Protocol (PEAP) for communication with the RADIUS server.

RADIUS server host VRF configuration mode

The no form of the command restores the command default value.

The following example shows how to configure PAP as the authentication protocol for communication with the RADIUS server.

device# configure terminal
device(config)# radius-server host 10.37.73.180 use-vrf green-vrf
device(config-host-10.37.73.180/green-vrf)# protocol pap