On an AIX host, edit the /etc/snmpd.conf file and add entries for every
community string that you might want to do an "snmp getinfo" on.  Remember
to issue a "refresh -s snmpd" for the changes to take effect.

Recall that for Netview to recognize a community string, it must be defined
via the GUI Options -> SNMP configuration but there is a limitation, I
believe, on the community strings defined to it.