Mikrotik

https://wiki.mikrotik.com/wiki/Manual:SNMP

Configure a private community

snmp community add \
  name=private \
  addresses=192.168.3.0/24 \
  security=private \
  read-access=yes \
  write-access=no \
  authentication-protocol=SHA1 \
  encryption-protocol=AES \
  authentication-password=<password> \
  encryption-password=<password>

Set-up SNMP instance

snmp set \
  contact=david@daper.email \
  location=home \
  trap-community=private \
  trap-version=3 \
  trap-generators=temp-exception \
  src-address=192.168.3.1

Enable it

snmp set enabled=yes

Management information base (MIB)

Put it on ~/.snmp/mibs