International Journal of Mobile Computing and Multimedia Communications

Internet Protocolversion6 (IPv6) is createdtooccupytheinsufrcient currentlnternetaddresses. Consequently this significant contribution offers huge number oflnternet addresses. Besides, the security also has been imprwed to challenge today threats in competent on IPv6 network As alternative, an automatic tunneling was introducedalongwith other transitionmechanisms to er*ure smoothimplementation onexistingnetwork. However it 3 believed that the implenentation of automatic tunneling has altered the form of tla IPv4 threats. Then the gained informationfrom this mechanism is exploited to attempt the target network As a concern, this paper thoroughly describes an potential ofreconnaissarrce attack reach through automatic tunneling rnmed 6to4 Tunneling. The preference development tools and networking deferce mechanism suite, is setup toconductproposedattackmethodunder 6to4 tunnel testbedenvironment. As aresult, the attackingmethodis feasible to attempt and 6to4 tunnel showed their infiuence on the achievement ofDoS attack in current internet.