Get SNMP settings

esxcli system snmp get

Set SNMP

esxcli system snmp set --communities YLbgpxopmWDY
esxcli system snmp set --enable true
esxcli network firewall ruleset set --ruleset-id snmp --allowed-all false
esxcli network firewall ruleset allowedip add --ruleset-id snmp --ip-address 10.202.7.0/24
esxcli network firewall ruleset allowedip add --ruleset-id snmp --ip-address 10.202.4.0/24
esxcli network firewall ruleset set --ruleset-id snmp --enabled true
/etc/init.d/snmpd restart