Tunneling through multiple routers

[rragusa]

Has anyone setup a remote desktop connection through two routers. One router connected to a fractional T1 modem and another behind it prior to reaching the desktop computer. Do I create the same open port on all three devices?????

[Snurfen]

welcome to CTH rragusa
Why make life hard for yourself, why don't you just use a vpn to tunnel through, then mstsc.exe will have you wreaking havoc before you know it.

[Archangel122184]

It is possible... think of each router as the RDP server.

Internet -> (140.222.1.25)Router1(10.1.1.1/16) -> (10.1.2.1/16)Router2(192.168.1.1/24) -> RDP Server(192.168.1.10/24))

(If you understand anything about subnetting, you'll understand the above network better than this explanation... basically, the internet comes in the the NAT router at the made up 140 address and Router1 creates a class A subnet 10.1.0.0, Router 2 takes an address on this subnet then creates its own class C subnet 192.168.1.0)

Obviously you can't do anything about the internet... thankfully the traffic over the internet is pretty much open so nothing needs to be.

What will happen is the RDP connection will come in from the internet to router1. If router 1 doesn't know where to forward it, the request is ignored, so you have to forward it from router1. You have to forward it to the same port on router2(which will be on router1's local network). From router2, you can foward it to your RDP server. This can be done conceivable an infinite number of times, as long as the routers support NAT, which most do and all home routers do.

From

[rragusa]

Thanks for information. I will be trying this out tomorrow and will post my results.