The flings.vmware.com website has been taken offline, you can find the content here:
https://archive.org/download/flings.vmware.com/Flings/There is a folder for the community NIC driver:
https://archive.org/download/flings.vmware.com/Flings/Community%20Networking%20Driver%20for%20ESXi/
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Although I am a VMware employee I contribute to VMware Communities voluntarily (ie. not in any official capacity)
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