find out ip address of PC connected to a M5300-28GF3 switch

Hello,

I have 2 x M5300-28GF3 connected in a stack using AX744 cables . How to find out ip address of clients  connected to a M5300-28GF3 switch ? Tried logging in and with snmp as well

below snmp command typically works .. but it seems to be getting information for the one unit only . How do I get information from unit1 and 2 ?

snmpwalk -v2c -c <communitystring> <device> ipNetToMediaPhysAddress

Thanks
Ajay