usage: snmpnetstat [snmp_opts] [-Canv] [-Cf address_family]
       snmpnetstat [snmp_opts] [-Cibodnv] [-CI interface] [-Cw wait]
       snmpnetstat [snmp_opts] [-Cs[s]] [-Cp protocol]
       snmpnetstat [snmp_opts] [-Crnv] [-Cf address_family]