I'm able to connect to VPN using the Inside interface of my ASA 5520 however when I try to connect to the Outside Interface it acts like there's nothing there.
I ran NMAP on both interfaces and the Inside interface is listening on 10000/TCP but the External is not (or it's being blocked?).
I'm following the instructions in the ASA book, but they use the Outside interface and it just works. I don't think we're doing any special blocking on that port. What else am I missing?