RS125-24G-1S-RM basic config

Hi to all ,I am very pleased with Mikrotik features so I bought a RS125-24G-1S-RM
All I want is a switch for the 192.168.0/24 lan and one port isolated from that subnet so I can get snmp data
Is there a special configuration or are by deafault all ports switched to each other?Thanks in advance for your help