Resarch of IPv6 worm based on double layer scan strategy

Because of the huge address space in IPv6 network,traditional worm based on random scan,sequential scan in IPv4 network can hardly spread in IPv6 network.This paper developed a new type of IPv6 worm—V6-Worm.The worm appliesd double layer scan strategy,it applied subnet scaning starategy based on multicast in local sunbet and applied scaning strategy based on the information of BGP routing prefix in inter-subnet.Based on the double layer scanning strategy,established a double layer model(DLM)for simluating the propagation of V6-Worm.The reults of simulation show that V6-Worm can propagate in IPv6 network,and compare to random-scaning worm codered,V6-Worm can propagate more rapidly.