VPN on the fly

Throwing this out to the wisdom of the crowd. For many, many years we have been doing some data interchange in our VFP application between back office DBs (VFP or SQL) and a centrally located SQL DB via ODBC. The question has been raised about encrypting that traffic by going through a VPN tunnel. I was wondering if anyone here has implemented a VPN on the fly before making ODBC requests. Preferably I could only make this connection when I need it as opposed to firing up a VPN before the application starts as most things done by the program do not require this data interchange.

TIA

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rk

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