I have some devices what are reachables by cdp and ping (from 192.168.1.182 to 192.168.1.197) but if I want to discover them with CiscoWorks they are not discovered and application show this devices like unreachables.
These are my discover settings (settings_discover.doc) and this is the result I get (result.doc)
Am I doing anything incorrectly? Why are this devices unreachables with CiscoWorks?
No. DCR does not contact the devices, or verify the credentials. That is left up to other applications like RME and CS Discovery. You can add a device to DCR with missing or incorrect credentials. You will just not be able to manage the devices in other applications.