To change administrative access we should first GO to System Settings > Network.
By default, PORT1 settings will be displayed. We can configure administrative access for a different interface.
We should CLICK All Interfaces, and select the interface from the list.
We should set the IPv4 IP Address/Netmask or the IPv6 Address.
After that we should select one or more Administrative Access types for the interface, and set the default gateway and Domain Name System (DNS) servers followed by clicking on APPLY.