In most network deployments, generated MAC addresses are a good approach. However, you might need to set a static MAC address for a virtual machine adapter with unique value.
The following cases show when you might set a static MAC address:
The reasons why VMware force manual MAC addresses into this scope are unclear to me (probably to prevent collisions), but regardless, it can be an issue. I needed to specify a particular MAC address in the 00:04 range. Assign a static MAC Address in the vSphere Client. In the MAC Address group, select Manual. Enter the static MAC address, and click OK. To set a static MAC address for a virtual machine, you can edit the configuration file of the virtual machine by using the vSphere Web Client. Jul 20, 2016 Quick tip today on a static MAC address assignement, How to set a static MAC address in VMware Environment? Or rather what to look after when having alarms showing VM MAC conflict. MAC address “Spoofing” if you prefer, is well known. Sometimes you may need to “mess” with MAC address. The value for XX cannot be greater than 3F to avoid conflict with MAC addresses that are generated by the VMware Workstation and VMware Server products. The maximum value for a manually generated MAC address is shown in the sample. May 04, 2017 VMware ESX Server virtual machines do not support arbitrary MAC addresses, hence the above format must be used. As long as you choose a hex value that is unique among your hard-coded addresses, conflicts between the automatically assigned MAC addresses and the manually assigned ones should never occur. Sep 12, 2011 How to use VMware vSphere PowerCLI to find the MAC addresses of a virtual machine September 12, 2011 9 Comments In the search engine queries that bring people to my blog, I see that some people are looking for a PowerCLI script that finds the MAC addresses.
Manual Mac Address Vmware 10
Virtual machine adapters on different physical hosts share the same subnet and are assigned the same MAC address, causing a conflict.
Ensure that a virtual machine adapter always has the same MAC address.
By default, VMware uses the Organizationally Unique Identifier (OUI) 00:50:56 for manually generated addresses, but all unique manually generated addresses are supported.
Vmware Esxi Manual Mac Address
Note:Make sure that no other non-VMware devices use addresses assigned to VMware components. For example, you might have physical servers in the same subnet, which use 11:11:11:11:11:11, 22:22:22:22:22:22 as static MAC addresses. The physical servers do not belong to the vCenter Server inventory, and vCenter Server is not able to check for address collision.