Each network adapter manufacturer is assigned a unique three-byte prefix called an Organizationally Unique Identifier (OUI), which it can use to generate unique MAC addresses. 4th Octet of VM MAC 98 (Conversion of 152 to Hexadecimal) I have confirmed the Same from the few of Virtual Machine MAC Address.
ARE MAC ADDRESSES UNIQUE ON VIRTUAL SERVER REGISTRATION
This pool is used across all hosts that it manages regardless of host type (Virtual Server 2005 R2 SP1, Hyper-V, or VMware). The issue is, we rely on the MAC address of each of our physical devices to be unique for registration purposes, and every VM that is created from the image of our original VM has the same MAC address by default. System Center Virtual Machine Manager 2008 takes a different approach when managing virtual machines and MAC addresses by using static MAC addresses from a defined pool. The primary node responds to Address Resolution Protocol (ARP) requests for these IP addresses with its own MAC address. SCVMM 2008 and Global Static MAC address Pools. In an HA setup, the primary node owns all of the floating IP addresses, such as the MIPs, SNIPs, and VIPs. On the Hardware tab, select the virtual network adapter for the virtual machine. A virtual MAC address is a floating entity shared by the primary and the secondary nodes in an HA setup. In the vSphere Client inventory, right-click the virtual machine and select Edit Settings.
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