VNC access through two (2) Routers

[GD03]

Hello, I would like to remotely access my MAC which is connected to an Apple Airport Extreme router which is connected to a Belkin router which is connected to the internet. I have forwarded port 5902 from the Belkin router to the Airport router which in turn forwards the port to the MAC I would like to access.

Lets say the Wan IP of the Belkin router is 1.1.1.1 so in turn I use 1.1.1.1:5902 to connect via VNC to the computer. In theory this should work if I have forwarded port 5902 all the way to the specific computer I would like to access.

By using this same method I was able to open port 548 (AFP) in order to access apple file sharing from that same computer. Is there something I may be missing here? If I can access port 548 I should be able to do the same with port 5902, I think? Any help would be greatly appreciated. Thanks.

 

[DylanThompson]

GD03,

I'm not much of a MAC user, but I had something similar happen with our WinXP machines a little while back. I was only going through one router and trying to forward 5918 to an internal address. I opened the firewall on the XP machine, but no dice. In the end, I set VNC back to 5900, forward 5918 to the internal address and then in the advanced TCP/IP configs on the XP machine, put a forwrad for 5918->5900 to the local IP and then it finally worked.

I have no idea why it wasn't working in the first place and I don't know if you can do this sort of config on a MAC, but might be worth a look.