The macman process gathers MAC-related information from devices, indicating on which port a particular MAC address resides. To identify the IP address, ENA performs a lookup of the MAC address in the ARP (Address Resolution Protocol) caches of the router ports that reside in the same IP network as the device port.
If you are having problems resolving IP addresses:
- check whether ENA has stored the MAC addresses of the respective workstation/server (using Search).
- if so, check whether ENA has discovered any router ports in the same IP network as the port on which the MAC address resides.
- if no router ports are known in this IP subnet, then you should check whether all the necessary routers have been added to the management environment.