Site to Site VPN via Residential Cable/FiOS?

I’m curious if anyone had setup a site-to-site VPN between residential home internet setups. In my case, one end would be on Verizon FiOS and the other on Optimum Online (Altice).

My concern is that in both cases that ISP’s Router/Modem is performing NAT, and I believe the Firewalla will be sitting inside of that.

Has anyone done similar or have any pointers? If this works, I’ll be picking up 2 Purple units ASAP, and probably a Gold Plus in the middle of next year.

Thank you!

I run this for my lake house on Starlink back to my home with Cox cable and it works great. Starlink uses CGNAT so this was the easiest way to allow access remotely. I have original gold units at both sites. Starlink goes down occasionally and Firewalla reconnects reliably.

I do this with Fios, Firewalla as main router, and Comcast, purple behind Comcast router. VPN runs 24/7 and no issues.

Doing this 24/7. Works great.

With FiOS, you say this is the main router? So do you not use the FiOS router at all? My understanding is that the Verizon router was required for some of their TV services (ie, DVR, Guide, etc).

If it’s Internet only through FiOS - then as long as they hand-off Ethernet, you can just use the Firewalla and not use any Vz device?

I do use the Verizon router, but behind Firewalla Gold, wan port of Fios router is on its own VLAN and coax for STBs also go into Fios router.

Only function I lose with this is remote DVR, where you can remotely program the DVR and stream to your phone. Since it never really worked well, not a big loss. I do have Ethernet from the ONT, as I have gigabit, but I have heard if you call Verizon and ask, they will turn on the Ethernet for you, but you have to run cabling yourself.

My FWP is connected directly to the Verizon FiOS ONT. Works very well - get Internet performance routinely in 875-925 mbps.

Ah, yes – makes perfect sense. Too bad that won’t pass WAF (Wife Acceptance Factor).

I recently converted to 400Mb FIOS. Verizon ran the Ethernet for me. I have seen it mentioned here and elsewhere that they won’t. But if you upgrade, they will run cable as part of the upgrade call. I had bought an outside cat 7 and the tech was very happy to use my cable. What I thought was real interesting was that I had talked to someone about running just the cable for me and he told me that code required a connection box with an external Ethernet port be installed outside. I couldn’t simply punch a hole in the wall. I wasn’t sure about this but the sure enough, the Verizon tech installed a box on the outside wall. I was extremely impressed.

And by the way, I am running with a Purple. But no second home to connect with VPN. I was just commenting here about what Verizon will indeed do.

I had two coax cables before. One went to the Tivo, the other to the Verizon modem. Now I have coax, which wasn’t touched, to the Tivo and Ethernet replaced the coax for Internet.

And we have used Tivo for years. I won’t use whatever crap DVR the cable provider wants me to use. You don’t get pay per view but I don’t care.

Ha ha, I hear you on that! Luckily my wife does not use the phone app to remotely program the DVR!