I have been very interested in the functions of Haofang, and some information is checked online. Discover a software similar to software: Gamer's Internet tunnel. Analysis, it is placed with WinCPAP in the SNIFF mode, intercepting the packet, and adds the IP header to the IP packet for the issued game packet (IPX package), respectively, sent to the VLAN member; for the received IP package If you are a VLAN package to remove the IP head to IPX packets, while other packets are not affected. It can also work the same operation to the IP package, like Warcraft 3, use IPX, use IP protocols. Haofang did not have SNIFF, which should be the packets of the specified program with HOOK and then do the same.