I have the following abnormal bahaviour of RME (LMS 2.5.1).
After discovering and adding devices to DCR, I defined telnet community for each device (I add the user "cwuser" at the ACS and each device use ACS primary authentication). When I try to fetch startup, running and vlan.dat files from the devices, there is the tlenet authentication failure and RME switches from telnet to TFTP protocol for fetching startup and runnibg. But it cannot fetch the vlan.dat using TFTP (???).
The question is: why there is telnet authentication failure? If I try telnet from the command line of this server (or from Device Center), it successe!
This situation invokes some devices, and others (with the same configuration) is ok..
About protocols. Yes, I did it. The first time I had this problem, I just added the SSH protocol to telnet. And the problem was resolved (but not clear about the cause of it). Last time the soft didn't support SSH :(
What is Local and remote credentials...
For example. Each devise use ACS authentication (user cwuser) for line access. And each device has local account (localuser) in the local database (configured "aaa authentication ... tacacs local). In LMS 2.2 we could define user "cwuser" and the secondary user "localuser". Than LMS try to log into device using "cwuser". But if the ACS in not accessable by device, than LMS use secondary "localuser" which is in the local device database.
In LMS 2.5... If we define in credentials field username defined at the ACS. And the ACS will be down. CW LMS will not be able to log in to device! (user "cwuser" is absent in lcoal database. "localuser" present insted!).
Correct on the last point. LMS 2.5 does not currently support backup or fallback credentials. Work is being done to fix this, and it should be available in LMS 3.0 due out next year. In order for this scenario to work currently, both the ACS and the local databases need to agree at least in terms of the user CiscoWorks is using to log into the device.
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