Setting the Nic's to FULL DUPLEX and 100

It appears that ETHTOOL is not installed, or I can’t find it.

I want to force my NIC’S to be:


any help would be great…

why do you think you need to force speed and duplex?

I want to be able to bond my NICS and hard set to 100 full and the switch is et to 100 FULL no-auto.

Also I was wondering were the netconfig tool is or how you add NIC’s or change after the initial install?

Hi there,

Use eth-tool. The syntax is:

/sbin/ethtool -s eth0 speed 100 duplex full autoneg off

You can use it on all your ethX interfaces. Then with “mii-tool” you can see the status of your interfaces.

From my server (Fedora Core 6, lattest patches/kernel, asterisk 1.4):


eth0: 100 Mbit, full duplex, link ok
eth1: 100 Mbit, full duplex, link ok



Just a follow up, I can’t find ETHTOOL anywhere with the install of AsteriskNow?

It’s not at /sbin/ethtool or anywhere that I can find it?

Hi there,

I not sure which O/S distribution is using asterisknow, but you can download the “tar.gz” for compilation at: … e_id=19201

Also, if your O/S support RPM’s, try to find the ethtool RPM at

Best regards,