vmware GSX Server config

[<zhicheng.jiang@gmail.com>]

At the end of vmware-config.pl :
=========================================================
Starting VMware services:
Virtual machine monitor done
Virtual ethernet done
Bridged networking on /dev/vmnet0eth0: Not a valid Ethernet interface
failed

The configuration of VMware GSX Server 3.1.0 build-9089 for Linux for this
running kernel completed successfully.
===================================================

If I verify the vmnet-bridge :
amd64 / # vmnet-bridge /dev/vmnet0 eth0
eth0: Not a valid Ethernet interface
amd64 / #

Of course the eth0 is valid and is my only interface.
I have this problem with Linux amd64 2.6.8-9-amd64-k8

Thanks !!