How to specify a specific IP address as the AgentAddress for a device
A device may have many IP addresses, and an IP address which cannot respond to SNMP requests is selected as the AgentAddress, therefore SNMP communications are failing.
There is no way to specify a certain IP address to be the AgentAddress. The selection of IP depends on the device. If the device has multiple management addresses, then the address which replies first will be selected as the SNMP Agent address.
ADDRESSFORMAT=LOOPBACKADDRESS
Refer to the IP configuration guide for full details.