$ snmpd -f -Lo -d -u snmp -I -smux -p /var/run/snmpd.pid
cache has existing timer id.
Warning: no access control information configured.
  It's unlikely this agent can serve any useful purpose in this state.
  Run "snmpconf -g basic_setup" to help you configure the snmpd.conf file for this agent.
Error opening specified endpoint "udp:161"
Server Exiting with code 1
jim@banshee:~$ snmpd -f -Lo -d -c /etc/snmp/snmpd.conf -u snmp -I -smux -p /var/run/snmpd.pid
cache has existing timer id.
Warning: no access control information configured.
  It's unlikely this agent can serve any useful purpose in this state.
  Run "snmpconf -g basic_setup" to help you configure the snmpd.conf file for this agent.
Error opening specified endpoint "udp:161"
Server Exiting with code 1