In this modern internet era, routing protocol plays an important role. They forward the packets form source to destination. There are many routing protocols are used. In this paper, we evaluated the performance of different routing protocol like RIP and OSPF for IPv6. OPNET simulation tool 14.5 is used to evaluate the performance of RIP and OSPF in three network models in which two network models will perform on one routing protocol only while the third are used to evaluate the performance of these routing protocol are packet delay variation, end to end delay, traffic received, traffic sent, response time, jitter, page response time, object response time, traffic dropped for IPv6 Etc. we designed three scenarios to compare their performance.