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Change NIC characteristic in linux

For some reason, my debian box does not enable my NIC’s gigabit capability. The manual way is :

1. apt-get install ethtool

2. ethtool <interface> -s speed <link speed> duplex full autoneg off – e.g. ethtool eth0 -s speed 100 duplex full autoneg off

3. ifconfig eth0 down

4. ifconfig eth0 up

5. route add default gw <gateway> – e.g. route add default gw 192.168.0.1

run “ethtool eth0″ to check the interface speed.

To make it permanent, add the following to /etc/network/interfaces :

post-up /usr/bin/ethtool eth0 -s speed 100 duplex full autoneg off
post-up route add default gw 192.168.0.1

Cheers !!!

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This entry was posted on Monday, January 14th, 2008 at 2:02 pm and is filed under Psyber.Monkey, linux. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.

2 Responses to “Change NIC characteristic in linux”

  1. Planet Lowyat Says:
    January 15th, 2008 at 12:58 am

    ethtool is damm powerful

  2. mymac Says:
    March 31st, 2008 at 3:34 pm

    Planet Lowyat : yap, it does a great job of changing the settings of the network… :)

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