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Re: Networking Q concerning /etc/network/interfaces

On Sat, 11 Feb 2012 17:16:36 -0500, Harry Putnam wrote:

> Camaleón <noelamac@gmail.com> writes:
>> On Sat, 11 Feb 2012 14:13:22 -0500, Harry Putnam wrote:
>>> Running wheezy - 3.0.0-1-686-pae
>> Wheezy has now 3.1.0 :-?
> I've missed a couple of updates... the last notice I received on my kde
> desktop showed 200+... yikes.

He... yes, that hurts :-)
>>> I'm getting confused by what I see in /etc/network/interfaces,
>>> compared to what I see with ifconfig -a.
>> (...)
>>> So it appears at a superficial reckoning that dhcp has assigned an
>>> address to eth0, but that address appears to be attached to eth1 in
>>> ifconfig and netstat output.
>>> What explains this apparent anomaly?
>> Check out "dmesg | grep -i eth", maybe the interface got renamed
>> sometime.
> dmesg | grep -i eth
>   [1178198.100780] device eth1 entered promiscuous mode 
>   [1188657.808177] device eth1 left promiscuous mode

What did you run to get the card into promiscous mode? ntop, tcpdump...?

> Those were the only hits, so apparently eth0 is not being seen at all.

Only that two entries? I woul have expected more lines because both cards 
should be at least detected :-?
> The machine does have two nics and looking again at ifconfig -a  it
> shows different MAC and interrupt for each:
> eth0      Link encap:Ethernet  HWaddr 00:40:f4:b5:29:41
>           inet addr:  Bcast: 
>           Mask: BROADCAST MULTICAST  MTU:1500  Metric:1
>           [...]
>           Interrupt:19 Base address:0x6f00
> eth1      Link encap:Ethernet  HWaddr 00:11:09:ee:6c:04
>           inet addr:  Bcast: 
>           Mask: inet6 addr: fe80::211:9ff:feee:6c04/64
>           Scope:Link UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
>           [...]
>           Interrupt:9 Base address:0xce0

Yes, and most curious is that both cards have been configured which is 
strange given the first card (eth0) has not been connected. What device/
tool provided the data to eth0 and how? Really weird.

Okay, I would start by shutting down the network service ("service 
networking stop"), restarting it, manually up eth0 and eth1 and then 
review your syslog ("grep -i eth /var/log/syslog") and just in case also 



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