The present invention relates to a method for updating a routing entry.More particularly, the present invention relates to a method for updating a routing entry for a communication partner node communicating with a communication originating node via a network containing at least one routing node.In case of mobile nodes enabled to access the network at different access points, the communication originating node / mobile node MN is identified by a fixed address also known as home address Ho A and a variable address known as care_of_address Co A.The fixed address does not change but rather identifies the node ("logical location"), while the variable address changes depending on the access point of the network (e.g.Other routing protocols push less information of their own onto the network, while RIP pushes its whole routing table every 30 seconds.As a result, other protocols can converge more quickly, use more sophisticated routing algorithms, include latency, packet loss, actual monetary cost and other link characteristics, as well as hop count with arbitrary weighting.after the mobile node MN roamed within the network) and corresponds a "physical location" to which messages destined for the mobile node are to be delivered.The Article by describes the basics of mobile IP and outlines route optimization procedures as well as an extension to IP which allows mobile nodes to roam transparently from place to place within the internet with no disruption of service.
It stores in its routing table the distance for each network it knows how to reach, along with the address of the "next hop" router -- another router that is on one of the same networks -- through which a packet has to travel to get to that destination.(Modified reflects the fact that network engineers can assign paths a higher cost.) By default, if a router's neighbor owns a destination network (i.e., if it can deliver packets directly to the destination network without using any other routers), that route has one hop, described as a cost of 1. If a packet can't reach a destination in 15 hops, the destination is considered unreachable.Paths can be assigned a higher cost (as if they involved extra hops) if the enterprise wants to limit or discourage their use.Although once the most widely used IGP, Open Shortest Path First (OSPF) routing has largely replaced RIP in corporate networks.Each RIP router maintains a routing table, which is a list of all the destinations (networks) it knows how to reach, along with the distance to that destination.said request verification information from said routing node based on said identification BUIN of the update request. 1997, NEW YORK, NY, USA, IEEE, US, 2 November 1997 (1997-11-02), pages 1122-1128, XP010260752 ISBN: 0-7803-4249-6 1.