What Port Does Android Use For VPN Connections? I'm trying to set up a VPN so that I can have a connection to my LAN from my phone (HTC Droid Incredible, Stock ROM, Not rooted) wherever I am.

AFAICT, everything is set up correctly.  The Domain Name resolves correctly, I forwarded the ports required by the how-to I was following, yet I still can't connect.

I have no idea what's wrong or how to get to any debug information.  The only thing I can think of that I haven't verified yet is the port, but I couldn't find a way to select one.

What Port Does Android Use For VPN Connections?

P.S.  I would really like to do this without rooting.
If you have access to a computer that

is on the same Wi-Fi network; and
runs Wireshark (http://www.wireshark.org/)

you can probably find out the port that way.