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The routing table in simple words is the a table with routes to different destination addresses or networks. This is important for the device to know how to send the traffic to that particular network. This table can be populated dynamically and or add static routes thats persistent unless manually changed. To display the Routing table in a Windows XP, Windows 2000 or Windows 2003, we can use either the "route" command or a "netstat" command. In either way, the resulting output is the same. Using netstat: From the command prompt type "netstat -rn". The "-r" switch displays the routing table.

C:\>netstat -rn

Route Table Interface List 0×1 ………………………

MS TCP Loopback interface 0×3 …00 13 ce 85 0e e1 ……

Intel(R) PRO/Wireless 2200BG Network Connection – Packet Scheduler Miniport 0×10005 …00 ff 28 e3 2e 8a ……

Juniper Network Connect Virtual Adapter 0×80002 …00 14 22 fd 5b 8d ……

Broadcom NetXtreme 57xx Gigabit Controller – Packet Scheduler Miniport =====================================================

Active Routes: Network Destination Netmask Gateway Interface Metric

0.0.0.0 0.0.0.0 192.168.0.1 192.168.0.2 25

127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1

192.168.0.0 255.255.255.0 192.168.0.2 192.168.0.2 25

192.168.0.2 255.255.255.255 127.0.0.1 127.0.0.1 25

192.168.0.255 255.255.255.255 192.168.0.2 192.168.0.2 25

224.0.0.0 240.0.0.0 192.168.0.2 192.168.0.2 25

255.255.255.255 255.255.255.255 192.168.0.2 10005 1

255.255.255.255 255.255.255.255 192.168.0.2 192.168.0.2 1

255.255.255.255 255.255.255.255 192.168.0.2 80002 1

Default Gateway: 192.168.0.1 =====================================================

Persistent Routes: None

Using route:

Using route print command displays exactly the same output.

C:\>route print

Route Table

=====================================================

Interface List 0×1 ……………………… MS TCP Loopback interface

0×3 …00 13 ce 85 0e e1 …… Intel(R) PRO/Wireless 2200BG Network Connection – Packet Scheduler Miniport 0×10005 …

00 ff 28 e3 2e 8a …… Juniper Network Connect Virtual Adapter 0×80002 …00 14 22 fd 5b 8d …… Broadcom NetXtreme 57xx Gigabit Controller – Packet Scheduler Miniport

====================================================

Active Routes: Network Destination Netmask Gateway Interface Metric

0.0.0.0 0.0.0.0 192.168.0.1 192.168.0.2 25

127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1

192.168.0.0 255.255.255.0 192.168.0.2 192.168.0.2 25

192.168.0.2 255.255.255.255 127.0.0.1 127.0.0.1 25

192.168.0.255 255.255.255.255 192.168.0.2 192.168.0.2 25

224.0.0.0 240.0.0.0 192.168.0.2 192.168.0.2 25

255.255.255.255 255.255.255.255 192.168.0.2 10005 1

255.255.255.255 255.255.255.255 192.168.0.2 192.168.0.2 1

255.255.255.255 255.255.255.255 192.168.0.2 80002 1

Default Gateway: 192.168.0.1 =====================================================

Persistent Routes: None

A good Wiki article for routing table is here

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