I’ve been playing around more with Hamachi, and have decided that it officially rules. Since I’m a big Linux guy I don’t have access to some features, but the program seems to be a gem. It is brainlessly easy to install (even when doing 20 things at once), and works quite well. Thanks to Ben and Sean for helping me test it out.
The following sites might be helpful to configure IPSec again, or on a more complex basis:
http://www.cisco.com/univercd/cc/td/doc/product/iaabu/pix/pix_60/ipsec/conipsec.htm
My friend Ian told me about this originally, but my pen-testing cousin just send me the link as well. p2p VPN, w00t. Hamachi is a VPN alternative that does not have the normal router problems associated with IPSEC and PPTP vpns. That is good because of firewalls and nat and things like that.