TCP through a source code, well, you can through the LAN. U.S. can

MakeTCPHole
...........\Bin
...........\...\TcpHoleClt-A.exe
...........\...\TcpHoleClt-B.exe
...........\...\TcpHoleSrv.exe
...........\...\程序执行步骤和方法.txt
...........\global.cpp
...........\global.h
...........\MakeTCPHole.rar
...........\TcpHoleClt
...........\..........\Resource.h
...........\..........\StdAfx.cpp
...........\..........\StdAfx.h
...........\..........\TcpHoleClt.clw
...........\..........\TcpHoleClt.cpp
...........\..........\TcpHoleClt.dsp
...........\..........\TcpHoleClt.h
...........\..........\TcpHoleClt.plg
...........\..........\TcpHoleClt.rc
...........\..........\TcpHoleClt_A.dsw
...........\..........\TcpHoleClt_A.ncb
...........\..........\TcpHoleClt_A.opt
...........\..........\TcpHoleClt_B.dsw
...........\..........\TcpHoleClt_B.ncb
...........\..........\TcpHoleClt_B.opt
...........\TcpHoleSrv
...........\..........\Resource.h
...........\..........\SockClient.cpp
...........\..........\SockClient.h
...........\..........\StdAfx.cpp
...........\..........\StdAfx.h
...........\..........\TcpHoleSrv.aps
...........\..........\TcpHoleSrv.clw
...........\..........\TcpHoleSrv.cpp
...........\..........\TcpHoleSrv.dsp
...........\..........\TcpHoleSrv.dsw
...........\..........\TcpHoleSrv.h
...........\..........\TcpHoleSrv.ncb
...........\..........\TcpHoleSrv.opt
...........\..........\TcpHoleSrv.plg
...........\..........\TcpHoleSrv.rc

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