What ports need to be opened on firewall to allow the CiscoWorks LMS 3.2 to discover and manage devices outside the firewall? The device needs to be managed by RME CM DFM
It rather depends on what protocols you want LMS to use to "manage" devices, configured at such places as RME -> Admin -> Config Mgmt -> Transport Settings:
Here's a comprehensive list, with most for internal communications on the LMS host:
One doesn't need to open "514/tcp (RCP port)" if RME isn't configured to use it, for example.
In reality you probably can get away with only opening a subset of the ports in this post below, plus UDP port 162 (SNMP traps) for DFM:
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