I have some pfSense router/firewalls that I want to set into high availability mode and I'm placing a CRS305-1G-4S+ in front of each of my routers' WAN ports (ie: ISP Equipment > CRS305-1G-4S+ > 2 routers > and then another CRS305-1G-4S+ on the LAN side > LAN switches). I'm just using the CRS305-1G-...