A Routing Information Protocol (RIP) datagram has been received, or is about to be sent out of NCPROUTE depending on the direction value. A value of “to” indicates an outbound datagram, while a value of “from” indicates an inbound datagram. The type of the datagram is indicated by RIPcmd, and can be either RESPONSE or REQUEST. Responses are displays of routes from one router to another, requests are requests for individual routes or full tables. The value of port is either the port number which the packet came in on, the value 0, which indicates that the datagram will be sent to the default RouteD port as described in ETC.SERVICES, or in the case of outbound datagrams with a nonzero value the port which the datagram will be sent to.