Encryption IPsec! What can I use!?

[Frans Haarman]

I'm a bit confused! I want to play around with 
IPsec. Encrypted data transfer between two hosts. 

What CAN I use ? Some things are not allowed to 
be shipped from the US ? I'm from The Netherlands.

I'm really clueless at the moment, if someone could
shine some light on the subject of IPsec methods,
or point met to some clear docs; PLEASE do.

Regards,

--Frans
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