[TriLUG] Network problem

[Ryan Leathers]

I replaced my NIC with an identical NIC from another working system.
The problem remained.
The NIC is a 2 port Intel Pro 100.  
I finally got running again after trying an Intel GigE NIC.  I'm still
clueless as to why I can't seem to use the Pro 100 cards anymore.

Ryan
 

-----Original Message-----
From: Jon Carnes [mailto:jonc at nc.rr.com]
Sent: Thursday, September 19, 2002 11:18 AM
To: trilug at trilug.org
Subject: Re: [TriLUG] Network problem

Sort of an obvious thought, but why don't you simply replace the NIC? If
it was working fine yesterday, and you have already powered off the
machine and then powered it back on - the NIC is probably dead.

Other options to try:
 - swap out network cable
 - move to different port on hub/switch
 - swap out with similar working card from stock pile or less important
workstation/server.

Good Luck

BTW: you should only be running either IPchains or IPtables but not
both.  If you run "service ipchains stop" then it should flush out any
ipchains rules.  Similarly for iptables.

Jon Carnes
===
On Thu, 2002-09-19 at 10:08, Ryan Leathers wrote:
> Thanks in advance for considering this one...
>
> It seems that my NIC isn't speaking.  I can't figure out why.
> It was working until yesterday.
> I don't know what changed - if I did I probably wouldn't be pestering
> the list  :)
> I believe I have turned off ipchains and iptables. 
> I have verified that the Ethernet cable and switch port are both live.
> I can see that eth0 reports OK during boot.
> I can ifconfig eth0 up and down with normal results.
> There is nothing in the RX row. 
> In the TX row I see a packet count and a slightly smaller overrun
count.
> This jives with ethereal where I can see that Im sending ARPs, ICMP's
> etc, but I don't see responses.
>
> I don't see a link light or activity lights of any kind on the NIC
> Questions:
> How do I check for Ethernet speed 10/100/1000 and duplex settings ?
> How do I check for frame type ?
> What else might be causing this ?
>
> I'm about to run a sniffer from a cross-over cable just to verify that
> the NIC is in fact NOT transmitting on the wire.
>
> Any suggestions appreciated,
> Ryan
> 

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