该代码实现了基于winpcap的IPv6发包功能，可以构造MLD,IPV6 UDP，IPV6 PIM类型的报文，实现了定时发送的功能,The code for IPv6 based on the contract winpcap functions, can be constructed MLD, IPV6 UDP, IPV6 PIM message types, to achieve the timing function to send

MLDv2 support igmpv3 lite