I want to create a encrypted channel b/w two hosts that run linux.
One of them is behind a NAT box.
Especially, I want to set the SA and SP manually using setkey utility.
I can assume that I know that IP addresses of each box (of course one of
them has private ip while the other has public ip).
I am not sure if transport mode is possible in this set up.
If so, can someone shed some light on how to do this?
If not, how do I use tunnel mode for this?
I really appreciate your help in advance.
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