September 2005
Beginner
462 pages
12h 56m
English
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netstat
This program obtains network information from kernel data structures. The following command displays the routing table on Windows:
C:\>netstat -rn
Route Table
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x2 ...00 03 47 b8 9d 10 ...... Intel(R) PRO/100 SP Mobile Combo Adapter - SecuR
emote Miniport
0x10004 ...00 09 5b e6 cd 6d ...... NETGEAR WG511 54 Mbps Wireless PC Card
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 192.168.1.3 192.168.1.120 25
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.1.0 255.255.255.0 192.168.1.120 192.168.1.120 25
192.168.1.120 255.255.255.255 127.0.0.1 127.0.0.1 25
192.168.1.255 255.255.255.255 192.168.1.120 192.168.1.120 25
224.0.0.0 240.0.0.0 192.168.1.120 192.168.1.120 25
255.255.255.255 255.255.255.255 192.168.1.120 2 1
255.255.255.255 255.255.255.255 192.168.1.120 192.168.1.120 1
Default Gateway: 192.168.1.3
===========================================================================
Persistent Routes:
NoneAnd the same command on a Unix system:
$ netstat -rn
Kernel IP routing table
Destination Gateway Genmask Flags MSS Window irtt Iface
192.168.0.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0
0.0.0.0 192.168.0.1 0.0.0.0 UG 0 0 0 eth0
$Note the third column, Flags. ...
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