Linux IPSEC using strongswan

Recently I took a look at some techniques I always wanted to take a look at. IPSEC for example is one of those techniques. Remembering how long it took my work-colleague to setup an ipsec connection I thought this would be a nightmare. Took him a few days to get a working ipsec connection to a customer appliance – seems that had nothing to do with ipsec. The horrible part was the documentation or rather the lack of proper documentation for that specific Peplink appliance. Anyway, here’s how you can setup ipsec pretty simple and fast.
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