An internal table that a computer or router uses to determine which router interface to send packets to, based on their destination network addresses.
Microsoft Windows platforms automatically build their own routing tables, which are used to determine whether to forward specific packets to:
To view the internal TCP/IP routing table on a computer running Windows 2000, Windows NT, Windows 98, or Windows 95, type route print at the command prompt.
A typical routing table looks like the following:
Network Address Netmask Gateway Address Interface Metric
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
172.16.8.0 255.255.255.0 172.16.8.50 172.16.8.50 1
172.16.8.50 255.255.255.255 127.0.0.1 127.0.0.1 1
172.16.255.255 255.255.255.255 172.16.8.50 172.16.8.50 1
126.96.36.199 188.8.131.52 172.16.8.50 172.16.8.50 1
255.255.255.255 255.255.255.255 172.16.8.50 172.16.8.50 1
This computer has a single network interface card (NIC) with the address 172.16.8.50. The columns of this table are as follows:
In Microsoft Exchange Server, the routing table is the internal table that defines how messages can be routed to other sites in the Exchange organization and to foreign mail systems through installed connectors and gateways. This routing table is generally known as the Gateway Address Routing Table (GWART).