VMware ESX

How to fix an IP address conflict on your network caused by a VM using VMware PowerCLI

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IP Address conflict? Have you narrowed the MAC down to being a VM in one of your ESX/vSphere clusters? Well use vSphere PowerCLI to figure out what device and adapter is causing the conflict.

Example, if your MAC is 005056b60b13:

Get-vm | Select Name, @{N="Network";E={$_ | Get-networkAdapter | ? {$_.macaddress -eq "00:50:56:b6:0b:13"}}} |Where {$_.Network-ne ""}

And it will output the VM name and the Network Adapter causing the conflict. 🙂

About Jason Samuel

Jason Samuel lives in Houston, TX with a primary focus on strategic advisory and architecture of end-user computing, security, enterprise mobility, virtualization, and cloud technologies from Citrix, Microsoft, & VMware. He also has an extensive background in web architecture and networking over his 20+ year career in IT. He is an Author, Speaker, and Local User Group Community Leader. He is certified in several technologies and is 1 of 63 people globally that is a recipient of the prestigious Citrix Technology Professional (CTP) award. He is 1 of 42 people in the world that has been awarded as a VMware EUC Champion and VMware vExpert. He is a featured author on DABCC which provides the latest IT Community News on Cloud, Data Center, Desktop, Mobility, Security, Storage, & Virtualization. In his spare time Jason enjoys writing how-to articles and evangelizing the technologies he works with. Disclaimer: The content and opinions expressed in articles and posts are his own and are by no means associated with his employer.

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