Using a Raspberry Pi VPN to Expand Home Network Footprint To Enable Remote IPTV Set-Top Box

I need to create a VPN on two Raspberry Pis that allow a set-top box at location A communicate with a home router at location B. Ideally I would have it set up so the Ethernet port on a Raspberry Pi at location A forwards all traffic(to include multicast Layer-2 traffic) to Location B. I am setting this up for a family member so I do not know how the set-top box communicates with the home router beyond that it connect directly to the Home Router via Ethernet. Does anyone have any avenues of approach that would be effective at tackling this problem? Thank you for the support!

uhh…remote iptv, as in streaming videos? if it’s just that, then maybe a media server (Emby, Plex, etc) a location A with a client at location B? …and BTW they are encrypted…

If that’s not it, sorry!

sounds like what you are asking for is an L2 VPN or eLAN but that is not something you can can set up without the ISP. which you arent going to get without enterprise internet.

Thanks for the response. I wasn’t specific enough, but my family member has an ISP-provided set-top box that I am trying to take to a different house and function as if it were at their house. I don’t know what the protocols are for it so I figured the best problem would be a VPN configuration that extends their home network footprint. I might be overthinking the problem or am missing a way easier way to approach this problem, but I think this angle is worth a shot.

I’m planning on using a DynDNS service. Based on what I know about their ISP and router it should work in theory