I have noticed, that every time I restart one of my VMs, it gets a new IP adress from my FritzBox router. The router is configured for DHCP and every other device in my local network (including the FreeNAS itself) always gets the same IP adress. I always thought the ip adress depends on the MAC address of a machine, but since the MAC of the VMs is not changing I don't understand why this is happening. I am using FreeNAS 11.2-U5. This happens with every VM (Windows, Linux etc.). Any ideas?