Softether source, you can look at VPN knowledge

v4.22-9634\AUTHORS.TXT
v4.22-9634\BUILD_UNIX.TXT
v4.22-9634\BUILD_WINDOWS.TXT
v4.22-9634\ChangeLog
v4.22-9634\ChangeLog.txt
v4.22-9634\compat
v4.22-9634\configure
v4.22-9634\LICENSE
v4.22-9634\LICENSE.TXT
v4.22-9634\README
v4.22-9634\README.TXT
v4.22-9634\THIRD_PARTY.TXT
v4.22-9634\WARNING.TXT
v4.22-9634\systemd\softether-vpnbridge.service
v4.22-9634\systemd\softether-vpnclient.service
v4.22-9634\systemd\softether-vpnserver.service
v4.22-9634\src\BuildAll.cmd
v4.22-9634\src\BUILD_UNIX.TXT
v4.22-9634\src\BUILD_WINDOWS.TXT
v4.22-9634\src\ChangeLog.txt
v4.22-9634\src\configure
v4.22-9634\src\CurrentBuild.txt
v4.22-9634\src\GlobalConst.h
v4.22-9634\src\LICENSE.TXT
v4.22-9634\src\README.TXT
v4.22-9634\src\SEVPN.sln
v4.22-9634\src\THIRD_PARTY.TXT
v4.22-9634\src\WARNING.TXT
v4.22-9634\src\Wfp\resource1.h
v4.22-9634\src\Wfp\Wfp.c
v4.22-9634\src\Wfp\Wfp.h
v4.22-9634\src\Wfp\Wfp.rc
v4.22-9634\src\Wfp\Wfp.vcproj
v4.22-9634\src\Wfp\WfpInner.h
v4.22-9634\src\vpnweb\dlldata.c
v4.22-9634\src\vpnweb\resource.h
v4.22-9634\src\vpnweb\stdafx.cpp
v4.22-9634\src\vpnweb\stdafx.h
v4.22-9634\src\vpnweb\VPN.ico
v4.22-9634\src\vpnweb\VPNSvr.ico
v4.22-9634\src\vpnweb\vpnweb.cpp
v4.22-9634\src\vpnweb\vpnweb.def
v4.22-9634\src\vpnweb\vpnweb.h
v4.22-9634\src\vpnweb\vpnweb.idl
v4.22-9634\src\vpnweb\vpnweb.rc
v4.22-9634\src\vpnweb\vpnweb.rgs
v4.22-9634\src\vpnweb\vpnweb.vcproj
v4.22-9634\src\vpnweb\VpnWebControl.bmp
v4.22-9634\src\vpnweb\VpnWebControl.cpp
v4.22-9634\src\vpnweb\VpnWebControl.h
v4.22-9634\src\vpnweb\VpnWebControl.rgs
v4.22-9634\src\vpnweb\vpnwebdlg.c
v4.22-9634\src\vpnweb\vpnwebdlg.h
v4.22-9634\src\vpnweb\vpnwebdlg_inner.h
v4.22-9634\src\vpnweb\vpnweb_i.c
v4.22-9634\src\vpnweb\vpnweb_p.c
v4.22-9634\src\vpnsmgr\resource.h
v4.22-9634\src\vpnsmgr\vpnsmgr.c
v4.22-9634\src\vpnsmgr\vpnsmgr.ico
v4.22-9634\src\vpnsmgr\vpnsmgr.rc
v4.22-9634\src\vpnsmgr\vpnsmgr.vcproj
v4.22-9634\src\vpnsmgr\VPNSvr.ico
v4.22-9634\src\vpnsetup\Installer.ico
v4.22-9634\src\vpnsetup\resource.h
v4.22-9634\src\vpnsetup\vpnsetup.c
v4.22-9634\src\vpnsetup\vpnsetup.ico
v4.22-9634\src\vpnsetup\vpnsetup.rc
v4.22-9634\src\vpnsetup\vpnsetup.vcproj
v4.22-9634\src\vpnserver\resource.h
v4.22-9634\src\vpnserver\Server.ico
v4.22-9634\src\vpnserver\vpnserver.c
v4.22-9634\src\vpnserver\vpnserver.rc
v4.22-9634\src\vpnserver\vpnserver.vcproj
v4.22-9634\src\vpninstall\resource.h
v4.22-9634\src\vpninstall\vpninstall.c
v4.22-9634\src\vpninstall\vpninstall.h
v4.22-9634\src\vpninstall\vpninstall.ico
v4.22-9634\src\vpninstall\vpninstall.rc
v4.22-9634\src\vpninstall\vpninstall.vcproj
v4.22-9634\src\vpndrvinst\resource.h
v4.22-9634\src\vpndrvinst\vpndrvinst.c
v4.22-9634\src\vpndrvinst\vpndrvinst.h
v4.22-9634\src\vpndrvinst\vpndrvinst.ico
v4.22-9634\src\vpndrvinst\vpndrvinst.rc
v4.22-9634\src\vpndrvinst\vpndrvinst.vcproj
v4.22-9634\src\vpncmgr\resource.h
v4.22-9634\src\vpncmgr\Server.ico
v4.22-9634\src\vpncmgr\Server_Offline.ico
v4.22-9634\src\vpncmgr\VPN.ico
v4.22-9634\src\vpncmgr\vpncmgr.c
v4.22-9634\src\vpncmgr\vpncmgr.rc
v4.22-9634\src\vpncmgr\vpncmgr.vcproj
v4.22-9634\src\vpncmdsys\resource.h
v4.22-9634\src\vpncmdsys\vpncmdsys.c
v4.22-9634\src\vpncmdsys\vpncmdsys.h
v4.22-9634\src\vpncmdsys\vpncmdsys.ico
v4.22-9634\src\vpncmdsys\vpncmdsys.rc
v4.22-9634\src\vpncmdsys\vpncmdsys.vcproj
v4.22-9634\src\vpncmd\resource.h
v4.22-9634\src\vpncmd\vpncmd.c

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