MAC address (ICX and AlphaCom servers)
From Zenitel Wiki
This MAC address is used by ethernet port 0 (Eth0). The MAC address of ethernet port 1 (Eth1) is generated by adding 80:00:00.
It is always the MAC address of Eth0 which is refereed to when dialing 789 on a display station, and in the server web interface, System Monitoring > Node information and in System Configuration > Licensing. The MAC address of Eth1 is found in System Configuration > Interfaces.
If the MAC address is to be used for instance for firewall rules, it is important to provide the IT-administrator with the correct MAC address.