[linux-help] Re: network unreachable

[Thomas Wallis <wallis@xxxxxxxxxxxxxx>]

        Dear Tom:

        It sounds to me like a motherboard/compatibility issue.  If you 
are using a different Ethernet card now and it is still locking up/acting 
strange, it is very likely hardware.  You might try to move the Enet card 
to a different PCI slot.  I would also try a different motherboard, if 
possible.  The Nforce support on LINUX is reverse-engineered.  NVIDIA has 
given zero support to the kernel community regarding their chipset.  I 
have been buying VIA chipset boards for Athlon/A64 and Intel chipset for 
P4 machines, because of better support to the LINUX community.  Another 
thing to try would be Knoppix.  You can see if Knoppix boots and runs for 
a long time on your hardware.  Have you tried the downloadable NVIDIA 
drivers for your video card.  They replace the opensource ones in the xorg 
system.  Does dmesg show anything if the machine "unfreezes"?

                                Hope this helps,

                                T W

On Thu, 4 May 2006, Tom Hull wrote:

> Dale W Hodge wrote:
>> It sounds like hardware to me too. If firwall rules were blocking you should
>> get "network unreachable" errors on pings rather than just no response. If
>> the lights on the card aren't blinking, then it isn't sending packets. What
>> does the output of ifconfig or netstat (-i) show?
>
> I was getting network unreachable errors on pings. Sorry if that wasn't
> clear. Never figured this out. Added a PCI NIC, which was recognized as
> eth1. Disabled eth0, configured eth1. That worked.
>
> But just now, when I went to check machine: reloaded a web page, and the
> redisplay hung, with parts of the window rendered, most blank white, and
> no response to mouse clicks or keyboard (although cursor tracks). This
> has happened before. Video card is MSI NX6200AX Geforce 6200 128MB AGP,
> recognized as "Unknown NVIDIA card", xorg driver nv. Google for
>
>   ubuntu geforce 6200 xorg hang
>
> shows similar instances, but no real solutions. I asked on their forum
> but got nothing. Probably need to replace the card with something else,
> but don't know what. There seems to be a growing gap between what's
> "supported" and what actually works. I'm very disappointed with ubuntu
> thus far. Thought I picked out some fairly conservative hardware when
> I put this machine together, but the ASUS K8N-E Deluxe motherboard has
> had two problems to date -- SATA didn't work, and now Ethernet crapped
> out.
>
> If anyone is running ubuntu 5.10 with no xorg/video problems, please
> let me know what you're using for a video card. Thanks.
>
>> --Dale
>>
>>
>>> -----Original Message-----
>>> From: linux-help-bounce@xxxxxxxxx
>>> [mailto:linux-help-bounce@xxxxxxxxx] On Behalf Of Tom Hull
>>>
>>> Jonathan Hall wrote:
>>>
>>>> Sounds like hardware to me.
>>>>
>>>> Does the link light come on (either on the NIC, or on the
>>>
>>> switch) when the
>>>
>>>> cable is plugged in?
>>>
>>> Both lights come on. Speed is 100mbs. Don't see any blinking
>>> when I run
>>> something like:
>>>
>>>   ping -i 0 -f -I eth0 192.168.1.90 -r 192.168.1.65
>>>
>>> which floods out thousands of ping packets. Seems like the hardware
>>> level is functioning, but something is blocking data transmission.
>>> Similar command from other end doesn't blink light either, so receipt
>>> also seems to fail.
>
> -- 
> /*
>  *  Tom Hull * http://tomhull.com/ * http://notesoneverydaylife.com/
>  */
>
>
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Disclaimer: All opinions expressed here are my own and not those of WSU.

EMAIL address:  wallis@xxxxxxxxxxxxxx



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