Switchport mode access & switchport access vlan on Dell S3048ON

Thanks for the response. I have already tried that. I expect the client connected to port gi0/10, to be in the network the VLAN10 is in. I am not able to achieve this. Any suggestions?

Here is my config:
I am using Gi0/10 as my port to authenticate on and VLAN 10 as my Registration/Guest-VLAN. 

Config for vlan 10:

!
interface Vlan 10
no ip address
tagged GigabitEthernet 0/48
untagged GigabitEthernet 0/10
shutdown

Config for Gi0/10:

interface GigabitEthernet 0/10
no ip address
switchport
dot1x authentication
no shutdown

dot1X authentication is enabled in config mode and on the port Gi0/10.

So when I disable dot1X in config and on the interface Gi0/10, the port is placed in the network on VLAN 10 but after enabling it, the port is not assciated with the network on VLAN 10. Basically I want to have VLAN 10 network assigned to the port G0/10 before dot1X authentication. 

After the authentication I want the port to be associated with VLAN-2, which works fine.

I expect that the port Gi0/10 to be, by default placed in the network on VLAN10.
If you need any additional information please let me know.

Thanks.

Thanks for the info. So the devices connected on this port will try to authenticate first. I am curious about using Guest/not authorized VLAN for  devices that cannot authenticate, did you refer to MAB? Also if possible can you please provide sample config here? 

Thanks