Route is used to view or modify the route table. Route print displays a list of current routes known by IP for the host. Sample output is shown in the IP section of this document. Note that in Windows 2000 the current active default gateway is shown at the end of the list of routes. Route add adds routes to the table. Route delete removes routes from the table. Routes added to the table are not made persistent unless the -p switch is specified. Nonpersistent routes last only until the computer is rebooted. For two hosts to exchange IP datagrams, they must both have a route to each other, or they must use a default gateway that knows of a route. Normally, routers exchange information with each other by using a protocol such as Routing Information Protocol (RIP) or Open Shortest Path First (OSPF). Silent RIP is available for Windows 2000 Professional, and full routing protocols are supported by Windows 2000 Server in the Routing and Remote Access service.