SNMP access problem OID "became not supported"

[SupportGuy]

Hello,

I'm trying to make SNMP monitoring. I' have a template with some OIDs.

SNMP seem to have a connection problem to monitored hos as I have following error in zabbix_server.log:

item [172.27.34.143:memTotalFree.0] became not supported: Cannot open snmp session

However, if i make the same request with snmpwalk on the same server, with same parameters it works:

[MYHOST]$ snmpwalk -c public -v 2c 172.27.34.143 memTotalFree.0
UCD-SNMP-MIB::memTotalFree.0 = INTEGER: 2107092 kB

What have I missed?

[SupportGuy]

Just some few details.

The source IP address configured in zabbix_server.conf file is the one used to send the SNMP request (there is no other interface).

Looking at the network level, I don't see any snmp request outgoing from zabbix server (I well see them for snmpwalk).

[SupportGuy]

Versions are Zabbix 2.0.4 on RHEL 6.3.

[SupportGuy]

I've seen in hereabove thread a mention to a bug corrected in 2.0.5, is it the problem I encounter ?

I did'nt have with problem (but others involving my choice of 2.0.4) in 2.0.0.

Should I use a previous version (2.0 or 2.1) ?

[SupportGuy]

SNMP ppolling not working in 2.0.4 if source IP address indicated in server config

For information, I've found the cause of the problem.

In 2.0.4 the SNMP polling is not working, SNMP connection is not possible if the source IP address is indicated in the zabbic_server.conf file.

[greenlight]

I've not got a source ip in the zabbix_server.conf file, but I am still getting no graphs for the snmp data

[SupportGuy]

I've been facing this problem too, after some modifications in my templates. I've solved the problem by removing and recreating the item.

Indeed there was no indication in zabbix server logs, even in debug mode

[greenlight]

looks like i'll need to wait for the 2.0.5 update then, as there are too many items to redo them all especially since they've all just been redone on the upgrade to version 2.0