Hi,
I have the same problem. I am trying to use the IP Address Allocation to manage our IP address ranges, but it's heavy going with manual work.
Autoscan works within the same subnet where the IMC server is, but any other subnets (across WAN links) do not seem to be doing anything (and yes, I have waited, hours on one occasion).
I cannot seem to find any documentation about the ports / protocols used for this, though I assume it's initially at least just a ping (in which case it should work).
Also, I find it a bit strange that the devices and their IP addresses already in the IMC db are not automatically filled in to the IP Address Allocation reservation tables.
Is there some trick to it to make this work, or is the feature just broken?
Regards,
Mika