[lug] Live boot network problem

[stimits at comcast.net]

Are you going through a router? The 10.x.x.x address is not routable and would be expected if no DHCP server is found.

----- Original Message -----
From: Glenn Murray 
To: Boulder (Colorado) Linux Users Group -- General Mailing List 
Sent: Wed, 14 May 2014 03:49:28 -0000 (UTC)
Subject: [lug] Live boot network problem

Hi,

I have a new Lenovo T440p on which I booted Kubuntu 14.04 from a jump drive, but the network connection fails.  This is a wired connection that works with the installed Win7.  Does someone know what is going on here?


Thanks,
Glenn


This looks like to me that DNS worked:

kubuntu at kubuntu:~$ ping www.google.com
PING www.google.com (173.194.46.18) 56(84) bytes of data.

>From 10.135.122.1 icmp_seq=2 Destination Host Unreachable
>From 10.135.122.1 icmp_seq=3 Destination Host Unreachable

Here is ifconfig.

kubuntu at kubuntu:~$ ifconfig

  eth0      Link encap:Ethernet  HWaddr 28:d2:44:56:32:e0  
          inet addr:10.135.123.128  Bcast:10.135.123.255  Mask:255.255.254.0
          inet6 addr: 2606:b400:410:148:206f:d7e2:3534:8870/64 Scope:Global

          inet6 addr: 2606:b400:410:148:2ad2:44ff:fe56:32e0/64 Scope:Global
          inet6 addr: fe80::2ad2:44ff:fe56:32e0/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1421 errors:0 dropped:0 overruns:0 frame:0

          TX packets:620 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:133730 (133.7 KB)  TX bytes:82626 (82.6 KB)
          Interrupt:20 Memory:f0600000-f0620000 


  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:400 errors:0 dropped:0 overruns:0 frame:0

          TX packets:400 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:47909 (47.9 KB)  TX bytes:47909 (47.9 KB)

  wlan0     Link encap:Ethernet  HWaddr 5c:51:4f:f5:e3:ad  

          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)

Network settings shows that the ipv4 gateway is 10.135.122.1.

kubuntu at kubuntu:~$ more /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)

auto lo
iface lo inet loopback


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