You will find here up-to-date vendor information including vendor address, url for driver download and network configuration information as well as all all belonging mac adresses.
Vendor name: DR. JOHANNES HEIDENHAIN GmbH
Website for driver download: http://www.heidenhain.com/
Showing all 1 registered mac address network prefixes: 00:A0:CD
The ethernet addresses with the prefix are registered by Dr. Johannes Heidenhain Gmbh in Dr.-Johannes-Heidenhain Str. 83301 Traunreut Germany. You will find troubleshooting information for your hardware on the vendor webpage here. This registered set of mac addresses can address max. 16.777.216 devices.