I'm a beginner in snmp...
I've installed net-snmp on my freebsd system.
I've created this snmpd.conf file:

com2sec public default public
group public v1 public
group public v2c public
group public usm public
view all included .1
view all included system
access public "" v1 noauth exact all none none
access public "" v2c noauth exact all none none
access public "" usm noauth exact all none none

and I try to run this query:

snmpget -c public -v 2c system.sysUpTime.0 (where IP showed is
my system IP)
but I get "Timeout: No Response from" error.
If I try with test query on other system it works fine:
snmpget -c demopublic -v 2c test.net-snmp.org system.sysUpTime.0
SNMPv2-MIB::sysUpTime.0 = Timeticks: (65159752) 7 days, 12:59:57.52

snmpd is up and running:
ps -U root|grep snmpd
490 ?? I 0:00.12 /usr/local/sbin/snmpd -P /var/run/snmpd.pid

and the ports are configured:
grep snmp /etc/services
snmp 161/tcp
snmp 161/udp
snmptrap 162/tcp snmp-trap
snmptrap 162/udp snmp-trap
snmp-tcp-port 1993/tcp #cisco SNMP TCP port
snmp-tcp-port 1993/udp #cisco SNMP TCP port

Could You help me?

Thank You