Administer > Managing Overlapping IP Addresses in NAT Environments > Static NAT Considerations > Communication and Static NAT > Administering ICMP Polling of the Management Address in a Static NAT Environment

Administering ICMP Polling of the Management Address in a Static NAT Environment

In a NAT environment, a firewall blocks NNMi from communicating with NAT nodes using the IP addresses on the nodes (the private IP addresses). To remedy this, use the NAT address (the public IP address) for communication with NNMi.

In a NAT environment, a node’s management address might be different from the IP addresses hosted on the node. For NNMi to discover a node in a NAT environment, you must add the NAT address to NNMi as a discovery seed. NNMi uses this NAT address for communication, even though it is not in the node's ipAddressTable.

NNMi provides this feature to avoid generating false node down incidents and a better root cause analysis.