Trying to achieve multi wan with hardware fail over and geographic fail over.

[novex]

Hi All,

Could someone draw a diagram for multiple wan with 2 pfsense hardware fail over. If i got 2 different location with 2 pfsense for failed over and each location have 2 isp wan. Please explain how many public and private ip involved also how to link them? I want to make to achieve which want my subject mean it.

Thanks in advance to all pfsense buddy.