Create an IPSEC Site to Site tunnel between two PfSense firewalls

So I need to create an IPSEC point to point link between two sites so my two FreeNAS boxes can replicate between each other as per this project.  I already run my network on PfSense and have done for a few years now and think it’s great so slapping a PfSense box at my mother’s house seemed like the easiest thing to do. Once all the NAS business was setup I dug out an old desktop machine (Dell Optiplex 760), put a 2 port Intel gigabit card inside and installed PfSense. After bringing it to my old house and changing the config on their DD-WRT router to act as a switch+AP I brought up the WAN connection and did some IP configuring. Once the interweb was setup and I confirmed the LAN was fully working (had to turn on static NAT for my lil’ bros PS4) I went ahead and configured the tunnel.
Continue Reading