Perhaps it's not actually NAT I'm referring to... but what I'm trying to do is access over the internet a Leopard Server (workgroup mode) I've set up. Server is on a local network provided by a Netgear wireless router connected to my ISP via its WAN port. The only problem is that my ISP's WAN is set-up just like a WAN in a corporation... they use private IPs and have only one Public IP. (they resell the service they get through Cox.). DynDNS requires an accessible public IP address. Since I'm behind at least two layers of NAT, is there anyway to access this server for VPN/admin purposes? For what it's worth, applications such as iChat and BTMM are usable.