6.2.4 Subnet connection rules
- List-based discovery only
For list-based discovery, NNMi uses the subnet connection rules to detect connections that span a WAN. NNMi evaluates the subnet membership of the device it has discovered on each end of a probable connection (by examining their IP addresses and subnet prefixes) and looks at subnet connection rules for a match.
- Rule-based discovery only
When auto-discovery rules are enabled and NNMi finds a device configured with a subnet prefix between /28 and /31:
NNMi checks for an applicable subnet connection rule.
If a match is found, NNMi uses each valid address in the subnet as a hint and attempts discovery on that address.
- Tip
Use the default connection rules. Modify them only if there is a problem.