I read through that thread, thanks.
I'm just using SSH and the esxcli command. I don't have any problem adding more than 3 communities:
/sbin # esxcli system snmp set -c com1,com2,com3,com4
/sbin # esxcli system snmp set -t 10.10.10.10/com1 (how can I add additional communities to this target w/out using another of my 3 targets?)
/sbin # esxcli system snmp get
Authentication:
Communities: com1, com2, com3, com4
Enable: true
Engineid: 00000063000000a10a3c0c0a
Hwsrc: indications
Loglevel: info
Notraps:
Port: 161
Privacy:
Remoteusers:
Syscontact:
Syslocation:
Targets: 10.10.10.10@162 com1
Users:
V3targets: