I first came across N2N last year during my stay at Cybermedia Center, Osaka University last year though I didn’t involve with it that much. Fast forward to the present, for my current project (I may blog about it later if I feel like it), I need to setup an L2 overlay network so N2N just came to mind. N2N is basically yet another VPN software. Since I’m lazy, I’ll just shamelessly stole the description from the official N2N site.