Crossposted using Lemmit.
Original post from /r/techsupport by /u/Siwat2545 on 2023-07-07 15:02:59+00:00.
So I have an ISP router and 2 of my routers and I want to put 2 firewalls in HA mode behind the ISP router as I only have one public dynamic IP and cannot setup VRRP (need 3, 2Router+1VIP)
I was thinking that I would use private IPs to do VRRP and 1:1 NAT to the VIP on the WAN side.
If I do this I was wondering what will break. Right now I’m using bridge mode to make double nat goes away.
Diagram
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