snmpwalk: –c: Unknown Object Identifier (Sub-id not found: (top) -> –c)

I am relatively new to snmp and am trying to test out snmp on a device with snmpwalk command. I am using it as such: snmpwalk -v2c -c public <ip>

and it returns and error of –c: Unknown Object Identifier (Sub-id not found: (top) -> –c)

I've tried removing the -c public option and it just gives an Unknown Object Identifier <ip>

The debian packages for snmp I have are snmp snmp-mibs-downloader snmpd snmptrapd

I have not seen much online about this specific error and from looking at examples and the docs I believe I am using the command correctly. Maybe there is some configuration or package I am missing.

It worked after I restarted the snmp service and using -v 2c