debian:~# ifconfig -a
eth0      Link encap:Ethernet  HWaddr 00:13:20:16:B5:86  
          inet addr:192.168.1.102  Bcast:192.168.1.255  Mask:255.255.255.0
          inet6 addr: fe80::213:20ff:fe16:b586/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:31676137 errors:0 dropped:0 overruns:0 frame:0
          TX packets:52455137 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:2849402875 (2.6 GiB)  TX bytes:3165392596 (2.9 GiB)
          Interrupt:169 

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:1162907772 errors:0 dropped:0 overruns:0 frame:0
          TX packets:1162907772 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:2907994056 (2.7 GiB)  TX bytes:2907994056 (2.7 GiB)

sit0      Link encap:IPv6-in-IPv4  
          NOARP  MTU:1480  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:0 
          RX bytes:0 (0.0 b)  TX bytes:0 (0.0 b)

debian:~# netstat -rn
Kernel IP routing table
Destination     Gateway         Genmask         Flags   MSS Window  irtt Iface
222.124.10.163  -               255.255.255.255 !H        - -          - -
210.94.6.89     -               255.255.255.255 !H        - -          - -
192.168.1.0     0.0.0.0         255.255.255.0   U         0 0          0 eth0
0.0.0.0         192.168.1.7     0.0.0.0         UG        0 0          0 eth0
debian:~# nmap -sP 192.168.1.*

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2007-04-06 00:30 BST
Host 192.168.1.7 appears to be up.
MAC Address: 00:12:17:42:13:19 (Cisco-Linksys)
Host 192.168.1.100 appears to be up.
MAC Address: 00:11:24:22:EF:5D (Apple Computer)
Host 192.168.1.102 appears to be up.
Nmap finished: 256 IP addresses (3 hosts up) scanned in 6.316 seconds
debian:~# nmap -sP 192.168.0.*

Starting Nmap 4.11 ( http://www.insecure.org/nmap/ ) at 2007-04-06 00:30 BST
Host 192.168.0.0 appears to be up.
Host 192.168.0.1 appears to be up.
Host 192.168.0.3 appears to be up.
Nmap finished: 256 IP addresses (3 hosts up) scanned in 4.944 seconds