If value is set to static, statically configured untagged VLAN Identifier for the port will be sent as the value of 'Tunnel-Private-Group-ID' attribute in RADIUS Access-Request packet for all authentication methods. If the value is set to dynamic, the untagged VLAN Identifier which is assigned dynamically by RADIUS server or assigned via User Role will be sent as the value of 'Tunnel-Private-Group-ID' attribute in RADIUS Access-Request packet for all authentication methods. Along with 'Tunnel-Private-Group-ID', attributes 'Tunnel-Type' with value VLAN(13) and 'Tunnel-Medium-Type' with value IEEE-802(6) will also be sent in RADIUS Access-Request packet. If the value is set as disable, none of the attributes, 'Tunnel-Private-Group-ID', 'Tunnel-Type' and 'Tunnel-Medium-Type' will be sent in RADIUS Access-Request packet for 802.1x with CHAP authentication method and mac-based with PAP and CHAP authentication methods. 'Tunnel-Private-Group-ID', 'Tunnel-Type' and 'Tunnel-Medium-Type' will be included in Radius Access-Request packet for mac-based with PEAP-MSCHAPv2 authentication method and 802.1x with EAP authentication method.