Routing problem

> I'm having a problem routing from my home LAB network to the internet.
> [...]

   What does "LAB" mean?  "Lab(oratory)"?  "Local-Area Blunder"?  I
think that I can guess which boxes in the (pretty) diagram are the
routers, but which subnet is "my home network", and which is "my home
LAB network"?

   The router with LAN IP address 192.168.1.1 could use a static route
with:

      Destination: 192.168.2.0
      Subnet:      255.255.255.0
      Gateway:     192.168.1.2
      Metric:      <lowest_allowed>

   Without such a route, when the router at 192.168.1.1 sees a message
for 192.168.2.x, it would send it to the ISP, just as it would for any
other foreign (non-192.168.1.*) address.  With that route, it should
send such a message to the other router (at 192.168.1.2), which should
pass it to the appropriate destination on its (192.168.2.*) LAN.

   Whether you can get Microsoft Remote Desktop (or anything else) to
work through two layers of NAT is a different question.