conexion a internet

[Edward Carrasco]

ahi te va esta es antes
eth0      Link encap:Ethernet  HWaddr 00:08:54:1F:DB:49
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::208:54ff:fe1f:db49/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:5 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:0 (0.0 b)  TX bytes:378 (378.0 b)
          Interrupt:17 Base address:0xd400

y esta cuando  funciona
eth0      Link encap:Ethernet  HWaddr 00:08:54:1F:DB:49
          inet addr:192.168.1.2  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::208:54ff:fe1f:db49/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:212 errors:0 dropped:0 overruns:0 frame:0
          TX packets:189 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:85387 (83.3 KiB)  TX bytes:19297 (18.8 KiB)
          Interrupt:17 Base address:0xd400

ahi tambien te mando el interface:

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interfaces
auto lo
iface lo inet loopback

# This is a list of hotpluggable network interfaces.
# They will be activated automatically by the hotplug subsystem.
mapping hotplug
        script grep
        map eth0

# The primary network interface
iface eth0 inet static
address 192.168.1.2
netmask 255.255.255.0
gateway 192.168.1.1

auto eth0

haber revisando esto que le encuentras y si mas no recuerdo lo ultimo que
instale fue el limewire puede que sea por eso  alguna sugerencia
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