VGT mode on ESX 3.5 and Windows ISA 2007

Hi Everyone!

I am trying to setup two NLB ISA 2007 servers (32 bit) on ESX 3.5. Because I need access to more than 4 vlans, I determined the correct course of action was to use VGT mode (this allows ESX to pass all the VLAN tagging to the guest os.)

I therefore made a virtual switch with a VLAN ID of 4095 (which causes ESX to pass all the VLAN tagging to the guest).

I then removed my guest from inventory, and added this line to the .vmx file:

ethernet0.virtualDev = "e1000"

The e1000 (Intel Pro 1000 MT) is the one that can support vlan tagging.

I then re-added the guest to the Virtual Center and powered it on.

It finds the card(s) fine and loads the Microsoft driver (which doesn't support vlan tagging). I then downloaded the Intel 12.4 driver from the Intel website for this card (which does support vlan tagging).

During the install of these drivers, the VM turns off! Then I check the console of the ESX server and I have a PSOD (purple screen of death).

I have already opened a support case with VMware, but I wondered if anyone else had run into this problem/situation or something similar?

Does anyone have any suggestions or point out any flaws in what I have done?




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2 Replies

32-bit Windows virtual machines exhibit various problems whenconfigured with versions 12.4 and 13.0 of the Intel PRO/1000 gigabitEthernet device driver (e1000). The problems include possible guest orhost crashes due to memory corruption.

use this patch:

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Moved to the VI: Virtual Machine and Guest OS forum.

Best regards,

Edward L. Haletky

VMware Communities User Moderator


Author of the book 'VMWare ESX Server in the Enterprise: Planning and Securing Virtualization Servers', Copyright 2008 Pearson Education.

SearchVMware Blog: http://itknowledgeexchange.techtarget.com/virtualization-pro/

Blue Gears Blogs - http://www.itworld.com/ and http://www.networkworld.com/community/haletky

As well as the Virtualization Wiki at http://www.astroarch.com/wiki/index.php/Virtualization

Edward L. Haletky
vExpert XIII: 2009-2021,
VMTN Community Moderator
vSphere Upgrade Saga: https://www.astroarch.com/blogs
GitHub Repo: https://github.com/Texiwill
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