i would like to configure a router that automatically connects to another router and takes its ip to surf the internet with.
lets say i am living in country A and have my modem/routerA there at home. i would like to know if theres a way to program another routerB or something like this to take with me traveling to country B that automatically connects to router A so i can use my home internet and IP no matter where i am located. all the devices connected (after) this routerB should be able to get this internet.
its important for me that the router(s) is/are programmed one time only and dont need a software or app every time they are switched on. (classical vpn services dont work for me).
ideally i can program the router and send it to a friend abroad who can instantly use my internet connection from A by just plugging it in in his home.
can anybody recommend me the hardware needed or give me a link to a tutorial? i dont even know how to name the thing i am searching for.
sorry for bad describing and english skills