1

no eth0 is showing in ifconfig

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:65536  Metric:1
          RX packets:1916 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1916 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1 
          RX bytes:177503 (177.5 KB)  TX bytes:177503 (177.5 KB)

wlan0     Link encap:Ethernet  HWaddr 84:a6:c8:4a:46:4c  
          inet addr:192.168.88.43  Bcast:192.168.88.255  Mask:255.255.255.0
          inet6 addr: fe80::1e08:9da1:7543:634a/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:21707 errors:0 dropped:0 overruns:0 frame:0
          TX packets:14015 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:11469933 (11.4 MB)  TX bytes:2012086 (2.0 MB)

# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet dhcp

  *-network               
       description: Wireless interface
       product: Centrino Wireless-N 2230
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlan0
       version: c4
       serial: 84:a6:c8:4a:46:4c
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=4.4.0-42-generic firmware=18.168.6.1 ip=192.168.3.101 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       resources: irq:28 memory:c0500000-c0501fff

sudo lshw -C network | grep logical

2
  • Please show us sudo lshw -C network and sudo lshw -C network | grep logical.
    – waltinator
    Commented Oct 18, 2016 at 13:40
  • 1
    Your system seems to think that all you have is a wireless network adapter (wlan0). Something went strange at system startup. Look at /var/log/kern.log* for the beginning of the last reboot (the line with [ 0.000000] as its time-since-reboot value. Scan the following lines for any mention of "Network", or any errors, or anything strange.
    – waltinator
    Commented Oct 19, 2016 at 21:06

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