HA with 2 Residential ISPs
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Hello, I'm trying to build some redundancy with my home network. I've been running pfSense for over a decade and love it. Now, with where I live and our dependency on the internet for work and home-schooling, I need to look at HA.
I currently have Spectrum cable service and Google FI (pay per GB) for cell service. I have modems with Ethernet ports(no tethering) for both ISPs. I want to be able to set up a primary pfSense box to use the cable connection and a secondary pfSense box (only when the primary isn't available/working) to use the cell service.
Also, I want this as two different pfSense boxes because I use pfSense for DHCP addressing. A down pfSense device has caused issues multiple times because the internal devices can't get DHCP-provided addresses. I have multiple internal private subnets, so putting a DHCP server on the router makes sense so a single DHCP server can address all of the internal networks.
Here is a quick image of how I see this setting up:
Any guides/documentation on how to get this done? Google is being very obtuse about this.
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@hydrian said in HA with 2 Residential ISPs:
I want to be able to set up a primary pfSense box to use the cable connection and a secondary pfSense box (only when the primary isn't available/working) to use the cell service.
Why want you set it up this way?
If your primary internet was down, the master role would not switch over to the secondary.
Get a small VLAN capable switch or two small dumb switches and put them in between the boxes and the modems, then you also get internet fail over. -
@viragomann How would that work with a single MAC address locking cable provider? I only get a single public IPv4 address.
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@hydrian
You can get it work with a single public IP, but probably not with a MAC lock. CARP uses certain MAC addresses, which cannot be spoofed as far as I know.
