VMWare Server with Broadcom NICs

Last week we were attempting to install a brand new SBS 2003 server for a new client, then have a terminal server running in a VMWare environment with Windows 2008.  We only had the onboard Broadcom NICs.  I’ve had so many problems with both VMWare and Virtual Server when using these NICs, so we typically configure an additional Intel NIC when we know we are going to virtualize, but there was a mistake in the order. 

Once we had the virtual server up and running, we found that we had a problem where it could not get to the Internet.  At first it seemed related to some frustrating firewall issue, it was showing that it was on the Domain Profile, but was local only.  We even went as far as installing Windows 2003 instead, but no luck.  I did every possible VMWare configuration option with regards to the network, and nothing worked at all. 

Since we’ve had trouble with the Broadcom cards before, I was skeptical about them from the beginning.  Sure enough, I found other people with similar problems.

In the properties of the adapter, the following need to be turned off:

Checksum Offload

Large Send Offload


Also, I did not need to do the following to fix the problem, but I did turn off Automatic choosing of available physical network adapter and forced VMnet0 to the adapter of my choosing.

I found the information here: http://communities.vmware.com/thread/151036?tstart=0&start=15.


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Tags: August 26th, 2008 Posted in Technology

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