To begin with, every VM has three different types of MAC addresses: the Initial, Effective, and Runtime MAC addresses: First, what exactly is a MAC Address Change from a vSwitch perspective? To understand this, you must first know more about how the switch keeps track of MAC addresses for VMs. The idea of MAC Address Changes tends to confuse a lot of people, so we’ll go deep into this one. It can still only see traffic for the VLAN(s) that it belongs to. Mac Address IP Address Network UUID Network Nameĥ2:54:00:7d:1b:91 8e06c992-7543-48f7-9380-51493b09317b VLAN92ĭetach adapter from VM vm.nic_delete MAC_Change 52:54:00:7d:1b:91Ĭreate new network adapter with new MAC address vm.Promiscuous mode does not allow a VM to see traffic on VLANs that aren’t specified by the port group. List all VM network adapters with details vm.nic_get MAC_Change

Log in to CVM via ssh and start Acropolis command line – type acli – note: MAC_Change is a virtual machine name. Of course, it is possible to change or update virtual machine MAC address by using acropolis command line acli.

However changing virtual machine XML configuration file will not keep setting permanent as all virtual machine settings are stored in Cassandra (noSQL) database. On standard KVM one would change virtual machine XML configuration file. All virtual machines and virtual machines settings (MAC address too) is controlled by Acropolis. It is highly customized CentOS KVM by Nutanix engineering team. īut, Acropolis Hypervisor – AHV – is not common KVM hypervisor 🙂. In standard KVM you would edit virtual machine configuration file XLM and update mac address section. One of the most common is legacy application license pined to network adapter card MAC address. There are several reasons why would you like to update or change virtual adapter MAC address.

Vmware change network mac address