hey i am studying since 3 months i am beignner to IT and currently doing ccna i cant understand the concept of ipv6 i really try to understand it but i cant its too difficult to remember classes,prefix of ipv6 plz help me to understand the concept of ipv6 (ipv6 addressing,classes,ospfv6,static ipv6 configuration and ipv6 simple configuration) these concept i cant under stand