sundance-communications.com/forum Forums VOIP Phones & IP PBX Networking Setting up a VPN

You probably are going to have to setup some kind of port forwarding in your modem at home. It sounds like it is using NAT, so you will have to tell incoming requests coming to your house where to go once they get to your modem......in this case, your VPN device.

You need to reconfigure the VPN client on your computer at home. It has to know the WAN address of your remote site. Your remote site is using NAT as is your home site in all likelihood. Let's say your LAN at work is 10.10.n.n and your home LAN is 192.168.n.n. When you wish to open a secure tunnel you use the 10.10.n.n address and your client opens the tunnel and routes between the subnets. It knows where to go because of the WAN address you assigned to that subnet. So all that needs to change is the WAN address in your VPN client. Depending on the VPN software you may have to regenerate keys.

I think nfcphoneman's suggestion is they way to go. If you need to do dynamic dns, it's an option in most vpn routers.

For what it's worth, I use a VPN with PPTP. It works with few exceptions (a few locations I haven't been able to log into, but most locations, I can).

What sort of protocol are you using?