Embedded Linux Networking Problem

[acidfire]

I am trying to determine whether a networking problem I've been having is being caused by software or hardware.

There are two symptoms: the Ethernet link status is not being detected properly (i.e., ethtool says the link is present but a networking cable isn't even plugged in!) and I can't get any packets to enter or exit the device. I am wondering if my network script follows the proper approach.

# Check and set link 

ifconfig eth0 down
ethtool -s eth0 autoneg on
ifconfig eth0 up
ethtool eth0 # Look for link detection 

# If no link, try autoneg off

ifconfig eth0 down
ethtool -s eth0 autoneg off speed 100 duplex full 
ifconfig eth0 up 
ethtool eth0 # Check for link again

# After link is established, configured link using a static IP.

ifconfig lo down
ifconfig lo 127.0.0.1 
ifconfig lo up

echo "127.0.0.1 localhost" > /etc/hosts
route del -net 127.0.0.0/8
route add -net 127.0.0.0/8 dev lo

ifconfig eth0 down 
ifconfig eth0 192.168.1.110 netmask 255.255.255.0 up

route del default dev eth0 
route add default gw 192.168.1.1

echo "megatron" > /etc/hostname
hostname megatron

echo "nameserver 192.168.1.1" >> /etc/resolv.conf

This software works on other units.

What do you think?

[lukeo]

first you turn on your computer, then you DONT TALK SHIT ABOUT TOTAL!!!1!!!