JON not able to get metrics for Apache server when SNMP module is configured to listen on public IP but to only allow connections from localhost

Issue

• We don't have any metrics being collected for our apache instance. SNMP was installed on the server in question, but I still see the below errors in the logs as if it wasn't:

  DEBUG [main] (rhq.core.pc.plugin.PluginComponentFactory)- Created discovery component [org.rhq.plugins.apache.ApacheServerDiscoveryComponent] for resource type [Apache HTTP Server]
  INFO  [ResourceContainer.invoker.daemon-1] (org.rhq.plugins.apache.ApacheServerComponent)- Initializing server component for server [/opt/jboss/jboss-ews-2.0/httpd||/opt/jboss/jboss-ews-2.0/httpd/conf/httpd.conf]...
  INFO  [ResourceContainer.invoker.daemon-1] (rhq.plugins.www.snmp.SNMPClient)- Initialized SNMP session for agent at /192.168.1.1:1610
  DEBUG [ResourceContainer.invoker.daemon-1] (rhq.plugins.www.snmp.SNMPSession_v2c)- Error while pinging SNMP 1 agent at 192.168.1.1/1610/public. SNMP GETNEXT request for iso(1) failed - org.rhq.plugins.www.snmp.SNMPException: Request for [iso] timed out.
  WARN  [ResourceContainer.invoker.daemon-1] (org.rhq.plugins.apache.ApacheServerComponent)- Failed to connect to SNMP agent at 192.168.1.1/1610/public. Make sure  
  1) the managed Apache server has been instrumented with the JON SNMP module,  
  2) the Apache server is running, and  
  3) the SNMP agent host, port, and community are set correctly in this resource's connection properties.  
  The agent will not be able to record metrics from apache httpd without SNMP