GRE bridging, IPsec and NFQUEUE « \1Lots of stuff, apparently unrelated, but it all came together recently, so here it is. Probably the whole thing is useless, but along the way I found many interesting things. The network topology used for this experiment is as follows: The initial task was trying to find a way to bridge site A and site B using IPsec (for starters, something that's not terribly useful; and yes, I know that there ar
