Adding and editing a device in NMIS8 is very easy, there are only three things which MUST be included, these are a name for the node (this does not need to be IP/DNS resolvable), a hostname or IP address for the device (this does need to be IP/DNS resolvable) and you need to provide an SNMP community string. You can basically use defaults for everything else.
To manage devices in NMIS access the menu option “System -> System Configuration -> Nodes (devices)”.
This will display a list of devices already being managed by NMIS. You can view, add, edit, delete devices from this menu.
After you have clicked add or edit, you will get a screen like this (the nodes panel will be a long panel).
At a minimum you will need to enter the name and IP address adn an SNMP community string.