I have successfully setup VPNs using Pix 506e firewall and the Cisco VPN client software. I didn't realize how spoiled I was using the Cisco software, it has a "wizard" style configuration that let me have working VPNs setup in minutes, literally.
Lately in my spare time I have been trying to setup a VPN using XPs built in VPN support. I am trying to get IPsec to work but I am having the worst time. With NAT-T, hardware and software firewall configuration, vpn passthrough, anti-virus software, and authentication/encryption settings I am getting to the point where I don't know WHAT the problem is.
I would like to buy a book that focuses on VPN implementation, and preferably it would also be specific to Windows XP SP2. Any tips?
Thanks,
--Dan