Re: Can't set up network on Debian 8 fresh install [was: Unidentified subject!]

[Bob Holtzman <holtzm@cox.net>]

On Thu, Sep 29, 2016 at 11:31:28AM +0200, tomas@tuxteam.de wrote:

My abject apologies for the delay in this reply. just got back in town
and am just catching up on my email.

> Hi, Bob.
> 
> Welcome.
> 
> First, a meta-suggestions
> 
>   Try to use a good subject line (I tried to modify it).
>   This list is read by many volunteers, and is pretty high
>   volume. Nobody reads everything. A good subject line
>   will make it more probable that your mail is picked up
>   by someone knowledgeable in the subject matter.

I know but I hit the send key too soon. Sorry.

> 
> Comments interleaved in your main text
> 
> On Wed, Sep 28, 2016 at 03:30:04PM -0700, holtzm@cox.net wrote:
> > Clean install of deb8 (jessie)on my Thinkpad T4220i laptop. went well
> > except for the fact that the network configuration
> > with DCP failed.
> 
> This is probably DHCP. That means that the laptop tries to ask in
> the local network for an IP address and gets assigned one by the
> (local) DHCP server, which these days typically is the internet
> router.
> 
> Question: is your Thinkpad connected to the local net via a
> network cable? Or via WLAN?

Ethernet cable directly to the modem. No router (yet).

> 
> Open a console. What is the output of the command

>   /sbin/ifconfig
> Could you paste it here?

root@localhost:/home/holtzm# /sbin/ifconfig
eth0      Link encap:Ethernet  HWaddr 00:21:cc:b6:06:8f
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 B)  TX bytes:0 (0.0 B)
          Interrupt:20 Memory:f2500000-f2520000

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:27 errors:0 dropped:0 overruns:0 frame:0
          TX packets:27 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:3077 (3.0 KiB)  TX bytes:307


> 
> > I was given 3 options.
> > 1) try it again. This was hope over experience.
> 
> That means it isn't getting an answer to its DHCP requests. Most
> probably it doesn't reach the network, but we can't know for sure
> yet.
> 
> > 2) configure manually. Great if I had the first inkling how. I'm a
> > complete neophyte when it
> >    comes to networking.
> > 3) continue without configuring a network. The only one that would let
> > me continue the
> >    installation.
> > 
> > I have a functioning desktop pc so I compred some files w/ the laptop.
> 
> Perhaps the output of /sbin/ifconfig on the desktop PC would be
> interesting here as well.

root@localhost:/home/holtzm# /sbin/ifconfig
eth0      Link encap:Ethernet  HWaddr 00:1e:8c:1e:85:82  
          inet addr:70.190.29.56  Bcast:70.190.29.255
Mask:255.255.255.0
          inet6 addr: fe80::21e:8cff:fe1e:8582/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:51469650 errors:0 dropped:0 overruns:0 frame:0
          TX packets:189063 errors:0 dropped:0 overruns:0 carrier:6
          collisions:0 txqueuelen:1000 
          RX bytes:3282631748 (3.0 GiB)  TX bytes:19166009 (18.2 MiB)

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:66231 errors:0 dropped:0 overruns:0 frame:0
          TX packets:66231 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:18252784 (17.4 MiB)  TX bytes:18252784 (17.4 MiB)


> 
> regards
> -- tomás

-- 
Bob Holtzman
A man is a man who will fight with a sword or
conquer Mt. Everest in snow. But the bravest of all
owns a '34 Ford and tries for six thousand in low.