Looking if there is a equipmente connected to a switch, in this case I was looking a nomadix I foud this table.
As the Switch is a 2-layer all that it's connected to it is in the same network so Why there is equipment with difference ip?
Ok, looking the network diagram there is a mikrotik router connected to that switch you can see that it's the 10.141.152.2 (you can see that the MAC vendor is routerboard) and there is a modem there, too. which make as a gateway.
The Switch match all ip that "pass through" his ports? or just the ip that are connected to it? in this last case why there is two difference networks