# Display Free Mac Address of a VCenter or already used

**URL:** <https://forum.ansible.com/t/display-free-mac-address-of-a-vcenter-or-already-used/19168>\
**Category:** Ansible Project\
**Created:** [September 2, 2015, 12:52pm UTC](https://forum.ansible.com/t/display-free-mac-address-of-a-vcenter-or-already-used/19168 "2015-09-02T12:52:04Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Andrea\_Perini](https://avatars.discourse-cdn.com/v4/letter/a/bbce88/32.png) [@Andrea\_Perini](https://forum.ansible.com/u/Andrea_Perini)\
**Post date:** [September 2, 2015, 12:52pm UTC](https://forum.ansible.com/t/display-free-mac-address-of-a-vcenter-or-already-used/19168/1 "2015-09-02T12:52:04Z")

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I’m creating VMs forcing mac address.  
I’m looking for a way to create a pool of available mac Addresses to use them for creating VMs; or just a way to see which mac addresses on my vCenter are already used by my VMs.  
Any hints?

I’ve found a module called ansible-provisioning but I can figure out how to use it for my purpose.  
[https://github.com/ansible-provisioning/ansible-provisioning](https://github.com/ansible-provisioning/ansible-provisioning)