Infrastructure Monitoring

Hi,
I have sucessfully set up snmp daemon on my AIX box (v 6.1.2.0).
I can query snmp from localhost (using command: snmpinfo -v -m dump -c public mib-2) and it works perfectly.

But I don't get any reply when query my AIX box from remote machine (AIX, Linux,...)
I have tried to set up SNMP v1 and also SNMP v3 but from remote machine it's not accessible, only from localhost.
There is no firewall installed between my servers.

tcpdump -i en8 port 161 shows incoming snmp packets from remote machine but snmp daemon didn't reply

Anybody can help me what can be wrong?

Here is a part of my snmpdv3.conf:
VACM_GROUP group1 SNMPv1 public -

VACM_VIEW defaultView internet - included -
VACM_VIEW defaultView snmpModules - excluded -
VACM_VIEW defaultView 1.3.6.1.6.3.1.1.4 - included -
VACM_VIEW defaultView 1.3.6.1.6.3.1.1.5 - included -
VACM_VIEW defaultView 1.3.6.1.4.1.2.6.191 - included -

VACM_VIEW defaultView system - included -
VACM_VIEW defaultView interfaces - included -
VACM_VIEW defaultView tcp - included -
VACM_VIEW defaultView icmp - included -
VACM_VIEW defaultView udp - included -
VACM_VIEW defaultView snmp - included -

VACM_ACCESS group1 - - noAuthNoPriv SNMPv1 defaultView - defaultView -

NOTIFY notify1 traptag trap -

TARGET_ADDRESS Target1 UDP 127.0.0.1 traptag trapparms1 - - -

TARGET_PARAMETERS trapparms1 SNMPv1 SNMPv1 public noAuthNoPriv -

COMMUNITY public public noAuthNoPriv 0.0.0.0 0.0.0.0 -
COMMUNITY public public noAuthNoPriv 172.17.0.0 255.255.0.0 -
COMMUNITY public public noAuthNoPriv 192.168.0.0 255.255.0.0 -

snmpdv3.log:
08/27/09 05:05:02 PM - s_agv123.c(1114) Agent using IP address UDP 172.17.13.232 port 0
08/27/09 05:05:03 PM - Dynamic configuration initialized.
08/27/09 05:05:03 PM - Using file /etc/snmpdv3.conf for configuration.
08/27/09 05:05:03 PM - Using existing file /etc/snmpd.boots for boots initialization.
08/27/09 05:05:03 PM - Added managers for community: public rc= 0.
08/27/09 05:05:03 PM - Tracing is set to 0.
08/27/09 05:05:03 PM - SNMP agent: initialization complete.
08/27/09 05:05:08 PM - Accepted new DPI inet socket connection on fd=10 from ::ffff:127.0.0.1 port 55595.
08/27/09 05:05:08 PM - Accepted new DPI inet socket connection on fd=11 from ::ffff:127.0.0.1 port 55596.
08/27/09 05:05:08 PM - Accepted new DPI inet socket connection on fd=12 from ::ffff:127.0.0.1 port 55597.