network unreachable

[Joseph Huber]

Figured I would pass this along... this going back a few months from the 
dates. Basic story was - have dual boot Debian/XP, suddenly when the Debian 
side is up ethernet is dead. Realtek RTL8139/810x by the way...

At the time what I ended up with was a static address on the Debian side. 
That made the problem go away and like most times where I think, "when I get 
the time I'll have to figure out what the problem is..." I never did.

Couple days ago problem returned (even with the static IP). The additional 
symptom this time was a "NETDEV WATCHDOG: eth0: transmit timed out." Google 
turned up a truck load of hits including 
http://bozziesfw.wordpress.com/2007/08/14/netdev-watchdog-timed-out-realtek-8139/ 
The only variation in my case was Windows restore didn't want to restore 
which made things a tad more complicated but once I had the driver rolled 
back (and Windows updates turned the h*ll off)  - bingo... the Debian side 
works DHCP and all.


----- Original Message ----- 
From: "Joseph Huber" <joe.huber at cox.net>
To: "Main PLUG discussion list" <plug-discuss at lists.plug.phoenix.az.us>
Sent: Tuesday, June 05, 2007 7:10 PM
Subject: Re: network unreachable


> Thanks for all the replies (on list and off).
>
> It doesn't seem to be hardware (everything is okay if I boot it Windows). 
> It
> shouldn't be upgrade related... I haven't run any updates for some time (I
> don't think Debian will decide to update anything for me unless I tell it
> to - unlike a certain other OS)...
>
> Can we focus on the "I'm guessing your DHCP server has crapped out" from
> Jeremy Miller? I tried the "ifconfig eth0" and got a bunch of output but 
> the
> BROADCAST MULTICAST line wasn't prefixed with "UP" and I didn't have an
> "inet addr x.x.x.x" line. I tried
>
> iface eth0 inet static
> address 192.168.2.51
> gateway 192.168.2.1
> netmask 255.255.255.0
>
> in /etc/network/interfaces however - no joy following
>
> ifconfig eth0 down
> ifconfig eth0 up
>
> I brought the box back up to see what "ifconfig -a" had to say and it 
> showed
> a "UP" prefixing the BROADCAST line and showed gave the "inet addr" line
> with the 192.168.2.51 address...
>
> What's going on and what exactly is involved in the DHCP server crapping 
> out
> (and I guess needing at least a warm boot in order to get it to bring up 
> the
> static IP address)????
>
> Joe
>
>
> ----- Original Message ----- 
> From: "Kenneth" <madhse at yahoo.com>
> To: "Main PLUG discussion list" <plug-discuss at lists.plug.phoenix.az.us>
> Sent: Tuesday, June 05, 2007 5:33 PM
> Subject: Re: network unreachable
>
>
>>
>>> ifconfig tells me the following (I don't have any way to get it off the
>>> box
>>>
>>> so there may be some typos):
>>>
>>> lo   Link encap : Local Loopback
>>>       inet addr: 127.0.0.1 mask:255.0.0.0
>>>       inet6 addr: ::1/28 Scopt:Host
>>>       UP LOOKBACK RUNNING MTU:16438 Metric:1
>>>       RX Packets:6130 errors:0 dropped:0 overruns:0 frame:0
>>>       TX Packets:6130 errors:0 dropped:0 overruns:0 carrier:0
>>>                                                collisions:0 carrier:0
>>>       RX bytes:979892 (948.0 KiB)
>>>       TX bytes:970802 (948.0 KiB)
>>
>> Try ifconfig -a
>> This should show interfaces that are down, as well as those that are up.
>> "lo" is the loopback interface and has nothing to do with your NIC.
>>
>> Use lsmod to check to see if a module is loaded for your NIC also.
>>
>> You might also find and post the relevant section of the output lf lspci,
>> especially if you don't know what your NIC is, or which module should be
>> loaded.
>
>
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