Cannot get current device settings: Operation not supported in VMware guest using ethtool
Issue
- Error trying to set the NIC speed with ethtool in a RHEL guest on VMware ESX:
# ethtool -s eth0 speed 100
Cannot get current device settings: Operation not supported
not setting speed
- Error trying to enable auto negotiation:
# ethtool -s eth0 autoneg on
Cannot set new settings: Operation not supported
not setting autoneg
- When trying to flash nic with
ethtoolcommand :# ethtool -p eth0 5it failed with erroroperation not supported.
Environment
- Red Hat Entprise Linux 5
- Red Hat Entprise Linux 6
- Guest running on VMware ESX
- vmxnet3 driver
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