RADIUS based user authentication RADIUS server configuration ipv4 RADIUS server IPv4 address ipv6 RADIUS server IPv6 address #include #include #include Source IP address used to initiate connection ipv4 IPv4 source address ipv6 IPv6 source address Security mode for RADIUS authentication mandatory optional mandatory Deny access immediately if RADIUS answers with Access-Reject optional Pass to the next authentication method if RADIUS answers with Access-Reject (mandatory|optional) optional