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    <title>topic Re: Moved a VM. Duplicate MAC address question. in ESXi Discussions</title>
    <link>https://communities.vmware.com/t5/ESXi-Discussions/Moved-a-VM-Duplicate-MAC-address-question/m-p/2572203#M239569</link>
    <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;I went ahead and deleted the specific uuid lines like the pdf in my op said. One exception, I didn't have the uuid.action line. I read about it in the link below and decided it wasn't a big deal. Also that kb article seems to explain when to make a new UUID fairly well.Thanks for the help. &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;A href="http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&amp;amp;cmd=displayKC&amp;amp;externalId=1541" target="test_blank"&gt;http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&amp;amp;cmd=displayKC&amp;amp;externalId=1541&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt; &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt; &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
    <pubDate>Thu, 10 Dec 2009 22:18:54 GMT</pubDate>
    <dc:creator>cajx</dc:creator>
    <dc:date>2009-12-10T22:18:54Z</dc:date>
    <item>
      <title>Moved a VM. Duplicate MAC address question.</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Moved-a-VM-Duplicate-MAC-address-question/m-p/2572201#M239567</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;OK, so I manually moved (really just copied b/c i like having a backup) the VM files from one ESXi box to another (these are standalone /outside of our vCenter system). I put the thing into inventory via the datastore browser. I started it up..., it asks if it was copied or moved, i picked MOVED b/c i didn't want to lose my IP addresses, etc. &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt; Well right after  I did that, I did some more reading and found this handy doc:&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt; &lt;A href="http://www.systemv.org/vmware_ESXi_survival_guide.pdf" target="test_blank"&gt;http://www.systemv.org/vmware_ESXi_survival_guide.pdf&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt; And here is my question. He recommends that you generate a new UUID so that you get a new MAC address. Indeed, my MAC address is the same on the old box and the new, but I will never turn both the old and new copy on at the same time so I wasn't worried. But what are the risks vs. rewards here? I'm just hesitant to go deleting things in the VMX files without understanding them more fully. What do you people recommend? &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Thanks. &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt; &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 10 Dec 2009 15:34:49 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Moved-a-VM-Duplicate-MAC-address-question/m-p/2572201#M239567</guid>
      <dc:creator>cajx</dc:creator>
      <dc:date>2009-12-10T15:34:49Z</dc:date>
    </item>
    <item>
      <title>Re: Moved a VM. Duplicate MAC address question.</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Moved-a-VM-Duplicate-MAC-address-question/m-p/2572202#M239568</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Hello,&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt; &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;As a best practive I would recomment you have a unique MAC address. This will avoid the layer2 confusions.&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt; &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;Aravind K &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 10 Dec 2009 16:37:46 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Moved-a-VM-Duplicate-MAC-address-question/m-p/2572202#M239568</guid>
      <dc:creator>karavinds1</dc:creator>
      <dc:date>2009-12-10T16:37:46Z</dc:date>
    </item>
    <item>
      <title>Re: Moved a VM. Duplicate MAC address question.</title>
      <link>https://communities.vmware.com/t5/ESXi-Discussions/Moved-a-VM-Duplicate-MAC-address-question/m-p/2572203#M239569</link>
      <description>&lt;HTML&gt;&lt;HEAD&gt;&lt;/HEAD&gt;&lt;BODY&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;I went ahead and deleted the specific uuid lines like the pdf in my op said. One exception, I didn't have the uuid.action line. I read about it in the link below and decided it wasn't a big deal. Also that kb article seems to explain when to make a new UUID fairly well.Thanks for the help. &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;A href="http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&amp;amp;cmd=displayKC&amp;amp;externalId=1541" target="test_blank"&gt;http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&amp;amp;cmd=displayKC&amp;amp;externalId=1541&lt;/A&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt; &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt; &lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;P&gt;&lt;/P&gt;&lt;/BODY&gt;&lt;/HTML&gt;</description>
      <pubDate>Thu, 10 Dec 2009 22:18:54 GMT</pubDate>
      <guid>https://communities.vmware.com/t5/ESXi-Discussions/Moved-a-VM-Duplicate-MAC-address-question/m-p/2572203#M239569</guid>
      <dc:creator>cajx</dc:creator>
      <dc:date>2009-12-10T22:18:54Z</dc:date>
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