I would like to create a PPTP tunnel to my computer at home. However, at home I have Verizon FIOS. They provide a router/firewall with IP address of 192.168.1.1. While still using the one Verizon provided, I also have a Cisco WRVS4400N VPN router/firewall that I put behind the Verizon router. To get this to work, I just assigned the Cisco router an IP address of 192.168.5.1 and have all my PC's assigned an IP of 192.168.5.2-100.
I now want to create PPTP from my work computer to my computer at home. I enabled port forwarding from the verizon router to the cisco router, and from the cisco router, I am doing port forwarding to my home PC, but am still not able to create the PPTP connection. I receive error 720 from my work computer.
If I remove the Cisco router and leave the verizon router, as well as change all the port forwarding to go just from the verizon router to the home PC, I can connect.
Any ideas on how to get this to work with the cisco router in place?