A METHOD FOR AUTOMATIC V6-IN-V4 TUNNEL CONFIGURATION USING RIPNG.

摘要

This invention is related to automating the process of discovery of new IPv6 networks and configuration of v6-in-v4 tunnel between two Dual Stack routers belonging to two different IPv6 networks over a v4 backbone using RIPng. More particularly the present invention relates to a method for automatic v6-in-v4 tunnel configuration using ripng. This invention explains a method for automatic v6-in-v4 tunnel configuration using RIPNG comprising plurality of dual stack routers connected through IPv4 for providing IPv6 connectivity for their IPv6 nodes, the method comprising the steps of: at the dual stack router: triggering RIPng Request message when routing message which is sent by an IGP protocol running on IPv4 is received directly or indirectly from any router that joins the autonomous system; constructing RIPng request/reply with RTE entries associated with Metric OxFE and OxFD; encapsulating RIPng request/reply message in an IPv4 packet and transmitting it to a broadcast/multicast/unicast destination; and decapsulating IPv4 packet containing RIPng request/reply message after receiving it and processing of the same.