Hello, I recently purchased 2 routers with OpenWRT firmware.
The idea is to create a GRE tunneling between those networks (different locations).
Main House (OpenWRT Router 1 attached to ISP router) <<< ETHERNET >>> Another House (OpenWRT Router 2 attached to another ISP router)
I need to connect a device to OpenWRT Router 2 and simulate that is connected physically to ISP Router 1 (because of multicast group)
How can I do that?