SNMP agent

Hi,

I am really new in linux and SNMP.

I have a SNMP agent in Linux (net-snmp). I have my MIB
in the /usr/share/mibs directory, and I didn't manage to understand where and how do I put the values of the fields in the MIB? The values are static, so the agent need to return the same value in each SNMP GET request.
Can anyone help me?

Thanks!