$ iwconfig
ppp0      no wireless extensions.

lo        no wireless extensions.

eth0      no wireless extensions.


$ifconfig
eth0      Link encap:Ethernet  HWaddr fc:aa:14:70:6c:e9
          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)

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:18925 errors:0 dropped:0 overruns:0 frame:0
          TX packets:18925 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0
          RX bytes:1898177 (1.8 MB)  TX bytes:1898177 (1.8 MB)

ppp0      Link encap:Point-to-Point Protocol
          inet addr:14.99.10.64  P-t-P:172.23.130.4  Mask:255.255.255.255
          UP POINTOPOINT RUNNING NOARP MULTICAST  MTU:1500  Metric:1
          RX packets:56753 errors:0 dropped:0 overruns:0 frame:0
          TX packets:58117 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:3
          RX bytes:54359043 (54.3 MB)  TX bytes:7072942 (7.0 MB)





$ nm-tool

NetworkManager Tool

State: connected (global)

- Device: ttyUSB2  [Tata Indicom (Photon+) connection] -------------------------
  Type:              Mobile Broadband (CDMA)
  Driver:            option1
  State:             connected
  Default:           yes

  Capabilities:

  IPv4 Settings:
    Address:         14.99.10.64
    Prefix:          32 (255.255.255.255)
    Gateway:         172.23.130.4

    DNS:             103.8.46.5
    DNS:             103.8.45.5


- Device: eth0 -----------------------------------------------------------------
  Type:              Wired
  Driver:            r8169
  State:             unavailable
  Default:           no
  HW Address:        FC:AA:14:70:6C:E9

  Capabilities:
    Carrier Detect:  yes

  Wired Properties
    Carrier:         off





~$ sudo lshw -C network
  *-network
       description: Ethernet interface
       product: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: eth0
       version: 06
       serial: fc:aa:14:70:6c:e9
       size: 10Mbit/s
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       resources: irq:44 ioport:e000(size=256) memory:f7c00000-f7c00fff memory:f0000000-f0003fff