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ethtool — Display and modify Network Interface Controller (NIC) parameters. More information: <https://manned.

Submitted by: @import:tldr-pages·Mar 2, 2026·

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commandandmodifynetworkinterfacecliethtooldisplay

linux

Problem

How to use the ethtool command: Display and modify Network Interface Controller (NIC) parameters. More information: <https://manned.org/ethtool>.

Solution

ethtool — Display and modify Network Interface Controller (NIC) parameters. More information: <https://manned.org/ethtool>.

Display the current settings for an interface:

ethtool {{eth0}}

Display the driver information for an interface:

ethtool {{[-i|--driver]}} {{eth0}}

Display all supported features for an interface:

ethtool {{[-k|--show-features]}} {{eth0}}

Display the network usage statistics for an interface:

ethtool {{[-S|--statistics]}} {{eth0}}

Blink one or more LEDs on an interface for 10 seconds:

ethtool {{[-p|--identify]}} {{eth0}} {{10}}

Set the link speed, duplex mode, and parameter auto-negotiation for a given interface:

ethtool {{[-s|--change]}} {{eth0}} speed {{10|100|1000}} duplex {{half|full}} autoneg {{on|off}}

Code Snippets

Display the current settings for an interface

ethtool {{eth0}}

Display the driver information for an interface

ethtool {{[-i|--driver]}} {{eth0}}

Display all supported features for an interface

ethtool {{[-k|--show-features]}} {{eth0}}

Display the network usage statistics for an interface

ethtool {{[-S|--statistics]}} {{eth0}}

Blink one or more LEDs on an interface for 10 seconds

ethtool {{[-p|--identify]}} {{eth0}} {{10}}

Context

tldr-pages: linux/ethtool

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