Bridging two tivos across the internet

I have successfully enabled my network to allow me to login to https://my ip address and with my tivo/mak combination, I have been able to download movies from my computer at another location. Everything works fine.

I tried to enter that ip address into my second tivo's network settings to see whether I could use tivo to receive the movies instead of my computer, but tivo could not find a server at that ip address.

Is it possible to make a tivo connect to another tivo via the internet in this manner?

Thanks,
Pete