Sunday, September 27, 2009

TCP/IP Stack Corruption on VMware Host.

I encountered an issue this week where multiple VMs on a certain ESX host start having corruption of their TCP/IP stack. The 2008 VMs were unable to retain their gateway while the 2003 VMs were unable to retain any IP info whatsoever.  While still researching the cause, there is a solution. To repair the TCP/IP stack, just run this command which comes from this KB from Microsoft.

http://support.microsoft.com/kb/299357

netsh int ip reset c:\resetlog.txt

Here is a VMware Communities post with similar symptoms.

http://communities.vmware.com/message/1336502#1336502

This thread discusses the problem as well but doesn't really mention VMware.

http://social.technet.microsoft.com/Forums/en-US/itprovistasp/thread/27fd86ad-caad-4698-9032-63550695ee3d

3 comments:

  1. It seems that u have been experimenting with internet phone on ur network.

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  2. Peter

    I'm not sure I follow you. The client was using voip on their network but why would that affect just a handful of their VMs?

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  3. We have the same problem. This problem occurs on every server that is deployed from our master template. So we have to manually run the netsh command after the template is deployed. VERY frustrating and I can´t find a solution for it.

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