I'm currently using Pfsense as my core router, IDS using snort/everything i with it running on a 10 year old HP workstation. I'm worried about a hardware failure so I did some research and found I could get redundancy by getting a secondary Pfsense box (which I have a ton of old machines I can use) and a second static IP address from my ISP.
Has anyone done this before? If you have, are there anything I should watch out for? Thanks ahead.