laptop #ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:D0:59:DA:24:9C  
          inet addr:192.168.1.1  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          RX packets:0 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100 
          RX bytes:0 (0.0 b)  TX bytes:168 (168.0 b)
          Interrupt:11 Base address:0x1000 

eth0:1    Link encap:Ethernet  HWaddr 00:D0:59:DA:24:9C  
          inet addr:192.168.1.144  Bcast:192.168.1.255  Mask:255.255.255.0
          UP BROADCAST MULTICAST  MTU:1500  Metric:1
          Interrupt:11 Base address:0x1000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:120 errors:0 dropped:0 overruns:0 frame:0
          TX packets:120 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:11332 (11.0 Kb)  TX bytes:11332 (11.0 Kb)

tap0      Link encap:Ethernet  HWaddr 00:FF:6F:80:8E:B5  
          inet addr:192.168.0.254  Bcast:192.168.0.255  Mask:255.255.255.255
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:27 errors:0 dropped:0 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:100 
          RX bytes:3133 (3.0 Kb)  TX bytes:0 (0.0 b)