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This is what I got from ifconfig

    eth0      Link encap:Ethernet  HWaddr 00:1f:16:1a:0e:7e  
      inet6 addr: fe80::21f:16ff:fe1a:e7e/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:34 errors:0 dropped:0 overruns:0 frame:0
      TX packets:387 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000 
      RX bytes:16036 (16.0 KB)  TX bytes:98315 (98.3 KB)
      Interrupt:20 Memory:f2700000-f2720000 

    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:16436  Metric:1
      RX packets:704 errors:0 dropped:0 overruns:0 frame:0
      TX packets:704 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0 
      RX bytes:55280 (55.2 KB)  TX bytes:55280 (55.2 KB)

The following is the ifconfig when it is working

    eth0      Link encap:Ethernet  HWaddr 00:1f:16:1a:0e:7e  
      inet addr:10.5.48.125  Bcast:10.5.51.255  Mask:255.255.252.0
      inet6 addr: fe80::21f:16ff:fe1a:e7e/64 Scope:Link
      UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
      RX packets:32899 errors:0 dropped:0 overruns:0 frame:0
      TX packets:22710 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:1000 
      RX bytes:41546832 (41.5 MB)  TX bytes:2607896 (2.6 MB)
      Interrupt:20 Memory:f2700000-f2720000 

   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:16436  Metric:1
      RX packets:2014 errors:0 dropped:0 overruns:0 frame:0
      TX packets:2014 errors:0 dropped:0 overruns:0 carrier:0
      collisions:0 txqueuelen:0 
      RX bytes:173578 (173.5 KB)  TX bytes:173578 (173.5 KB)
share|improve this question
somebody please look into IT! – user73100 Jun 26 '12 at 1:27
Welcome to Ask Ubuntu! Not all questions are answered the day they're posted. There are other Ubuntu help resources, but whether or not you decide to use some of those resources now, I counsel patience. Most of us have lives outside of Ask Ubuntu, school/jobs, and other commitments. We're volunteers who may or may not be able to respond quickly to help you or anyone else (and you'll find that's the case for the other free support resources too). If that doesn't work for you, you might consider buying support. – Eliah Kagan Jun 30 '12 at 12:35

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