[GRLUG] "network is unreachable"

[Michael Mol]

On Fri, Feb 12, 2010 at 5:19 PM, Bob Kline <bob.kline at gmail.com> wrote:
>
>
> On Thu, Feb 11, 2010 at 1:03 PM, <donlumber at comcast.net> wrote:
>>
>> ----- Original Message -----
>> From: "Bob Kline" <bob.kline at gmail.com>
>> To: grlug at grlug.org
>> Sent: Wednesday, February 10, 2010 10:03:18 PM GMT -05:00 US/Canada
>> Eastern
>> Subject: [GRLUG] "network is unreachable"
>>
>> I somehow managed to hose the
>> Ethernet connect on a laptop running
>> Ubuntu 9.10.  The bottom line is that
>> when I try to ping an outside URL I get
>> "network is unreachable."  I've done
>> some searching on the Internet for
>> this, but so far nothing clicks.
>> Some relevant things:
>> *  ifconfig shows that eth0, lo, and wan0
>>    are gone, so I set them all to "up."
>> * /etc/resolv.conf looks OK.
>> * I can ping 127.0.0.1, but nothing outside.
>> * "/sbin/dhclient wlan0" was not running,
>>   so I started it.
>> *  I've done other A-B comparisons with
>>    a machine also running Ubuntu 9.10,
>>   and has a working eth0 port, but so far
>>   nothing has shown me the key thing
>>   that is missing.
>> One suggestion on the Internet was to
>> use dhcpcd, but I don't have it installed,
>> and can't do it now.  The machine does
>> not have a CDROM unit, and of course I
>> don't have Internet access.....
>> Does this much suggest anything to try
>> to anyone?  I've power cycled, but some
>> software might be missing, and when
>> I come back up I have to run ifconfig again
>> to set things up.
>>    -- Bob
>>
>> _______________________________________________ grlug mailing list
>> grlug at grlug.org http://shinobu.grlug.org/cgi-bin/mailman/listinfo/grlug
>>
>>
>>
>> Have you tried removing /etc/udev/rules.d/70-persistent-net.rules ?
>
>
> I tried it, and a new file was generated.
> But I still get "Network is unreachable"
> when I try to ping anything other than
> 127.0.0.1
>    -- Bob

As root, what's the output of "ifconfig" and "route"?
-- 
:wq