[TriLUG] setting eth0 to full duplex

John Turner jdturner at nc.rr.com
Thu Jan 29 10:41:51 EST 2004


We use this for forcing the duplex to 100 at boot time.

# more /sbin/ifup-pre-local
#!/bin/sh
if test "x$1" = "xeth0"; then
         /sbin/ifconfig eth0 up
         /sbin/ethtool -s eth0 autoneg off speed 100 duplex full
fi
exit 0

#

John

On Jan 29, 2004, at 10:12 AM, spain at ncssm.edu wrote:

> I'm aware of how to manually assign a static address to aninterface,
> however, I'm getting notices that there's a duplex mismatch.. switch 
> is set
> to 100baseT and I believe the eth0 is set to auto ( is that the 
> setting by
> default?)
>
> How do I set the interface to full duplex or 100baseT and what syntax 
> can I
> use.. if my ip was 192.168.1.100/24
>
> ifconfig eth0 inet addr 192.168.1.100 netmask 255.255.255.0 up  (what 
> would
> be the correct syntax to set the media type to 100baseT)
>
> Or is there a file in /etc that you can set the auto start parameters 
> for
> eth0 ?
>
> Any help is well appreciated.. right now the box periodically drops ssh
> sessions due to packet loss..
>
>
>
>
>   _____
>
> Sincerely,
> Jamil Hassan Spain
> NC School of Science and Mathematics | External Programs
> Phone: 919-416-2641
> Web: www.dlt.ncssm.edu <http://www.dlt.ncssm.edu/>
> Email: spain at ncssm.edu <mailto:spain at ncssm.edu>
>   _____
>
>
>
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